1 | <?php |
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2 | // +-----------------------------------------------------------------------+ |
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3 | // | Piwigo - a PHP based photo gallery | |
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4 | // +-----------------------------------------------------------------------+ |
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5 | // | Copyright(C) 2008-2014 Piwigo Team http://piwigo.org | |
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6 | // | Copyright(C) 2003-2008 PhpWebGallery Team http://phpwebgallery.net | |
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7 | // | Copyright(C) 2002-2003 Pierrick LE GALL http://le-gall.net/pierrick | |
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8 | // +-----------------------------------------------------------------------+ |
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9 | // | This program is free software; you can redistribute it and/or modify | |
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10 | // | it under the terms of the GNU General Public License as published by | |
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11 | // | the Free Software Foundation | |
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12 | // | | |
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13 | // | This program is distributed in the hope that it will be useful, but | |
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14 | // | WITHOUT ANY WARRANTY; without even the implied warranty of | |
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15 | // | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
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16 | // | General Public License for more details. | |
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17 | // | | |
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18 | // | You should have received a copy of the GNU General Public License | |
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19 | // | along with this program; if not, write to the Free Software | |
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20 | // | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, | |
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21 | // | USA. | |
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22 | // +-----------------------------------------------------------------------+ |
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23 | |
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24 | /** |
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25 | * @package functions\mysql |
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26 | */ |
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27 | |
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28 | define('DB_ENGINE', 'MySQL'); |
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29 | define('REQUIRED_MYSQL_VERSION', '5.0.0'); |
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30 | |
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31 | define('DB_REGEX_OPERATOR', 'REGEXP'); |
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32 | define('DB_RANDOM_FUNCTION', 'RAND'); |
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33 | |
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34 | |
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35 | /** |
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36 | * Connect to database and store MySQLi resource in __$mysqli__ global variable. |
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37 | * |
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38 | * @param string $host |
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39 | * - localhost |
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40 | * - 1.2.3.4:3405 |
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41 | * - /path/to/socket |
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42 | * @param string $user |
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43 | * @param string $password |
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44 | * @param string $database |
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45 | * |
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46 | * @throws Exception |
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47 | */ |
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48 | function pwg_db_connect($host, $user, $password, $database) |
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49 | { |
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50 | global $mysqli; |
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51 | |
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52 | $port = null; |
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53 | $socket = null; |
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54 | |
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55 | if (strpos($host, '/') === 0) |
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56 | { |
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57 | $socket = $host; |
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58 | $host = null; |
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59 | } |
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60 | elseif (strpos($host, ':') !== false) |
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61 | { |
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62 | list($host, $port) = explode(':', $host); |
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63 | } |
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64 | |
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65 | $dbname = null; |
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66 | |
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67 | $mysqli = new mysqli($host, $user, $password, $dbname, $port, $socket); |
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68 | if (mysqli_connect_error()) |
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69 | { |
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70 | throw new Exception("Can't connect to server"); |
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71 | } |
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72 | if (!$mysqli->select_db($database)) |
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73 | { |
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74 | throw new Exception('Connection to server succeed, but it was impossible to connect to database'); |
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75 | } |
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76 | } |
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77 | |
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78 | /** |
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79 | * Set charset for database connection. |
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80 | */ |
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81 | function pwg_db_check_charset() |
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82 | { |
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83 | $db_charset = 'utf8'; |
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84 | if (defined('DB_CHARSET') and DB_CHARSET != '') |
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85 | { |
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86 | $db_charset = DB_CHARSET; |
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87 | } |
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88 | pwg_query('SET NAMES "'.$db_charset.'"'); |
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89 | } |
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90 | |
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91 | /** |
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92 | * Check MySQL version. Can call fatal_error(). |
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93 | */ |
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94 | function pwg_db_check_version() |
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95 | { |
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96 | $current_mysql = pwg_get_db_version(); |
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97 | if (version_compare($current_mysql, REQUIRED_MYSQL_VERSION, '<')) |
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98 | { |
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99 | fatal_error( |
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100 | sprintf( |
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101 | 'your MySQL version is too old, you have "%s" and you need at least "%s"', |
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102 | $current_mysql, |
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103 | REQUIRED_MYSQL_VERSION |
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104 | ) |
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105 | ); |
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106 | } |
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107 | } |
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108 | |
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109 | /** |
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110 | * Get Mysql Version. |
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111 | * |
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112 | * @return string |
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113 | */ |
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114 | function pwg_get_db_version() |
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115 | { |
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116 | global $mysqli; |
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117 | |
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118 | return $mysqli->server_info; |
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119 | } |
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120 | |
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121 | /** |
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122 | * Execute a query |
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123 | * |
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124 | * @param string $query |
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125 | * @return mysqli_result|bool |
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126 | */ |
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127 | function pwg_query($query) |
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128 | { |
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129 | global $mysqli, $conf, $page, $debug, $t2; |
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130 | |
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131 | $start = microtime(true); |
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132 | ($result = $mysqli->query($query)) or my_error($query, $conf['die_on_sql_error']); |
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133 | |
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134 | $time = microtime(true) - $start; |
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135 | |
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136 | if (!isset($page['count_queries'])) |
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137 | { |
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138 | $page['count_queries'] = 0; |
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139 | $page['queries_time'] = 0; |
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140 | } |
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141 | |
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142 | $page['count_queries']++; |
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143 | $page['queries_time']+= $time; |
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144 | |
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145 | if ($conf['show_queries']) |
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146 | { |
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147 | $output = ''; |
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148 | $output.= '<pre>['.$page['count_queries'].'] '; |
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149 | $output.= "\n".$query; |
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150 | $output.= "\n".'(this query time : '; |
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151 | $output.= '<b>'.number_format($time, 3, '.', ' ').' s)</b>'; |
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152 | $output.= "\n".'(total SQL time : '; |
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153 | $output.= number_format($page['queries_time'], 3, '.', ' ').' s)'; |
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154 | $output.= "\n".'(total time : '; |
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155 | $output.= number_format( ($time+$start-$t2), 3, '.', ' ').' s)'; |
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156 | if ( $result!=null and preg_match('/\s*SELECT\s+/i',$query) ) |
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157 | { |
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158 | $output.= "\n".'(num rows : '; |
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159 | $output.= pwg_db_num_rows($result).' )'; |
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160 | } |
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161 | elseif ( $result!=null |
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162 | and preg_match('/\s*INSERT|UPDATE|REPLACE|DELETE\s+/i',$query) ) |
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163 | { |
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164 | $output.= "\n".'(affected rows : '; |
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165 | $output.= pwg_db_changes().' )'; |
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166 | } |
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167 | $output.= "</pre>\n"; |
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168 | |
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169 | $debug .= $output; |
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170 | } |
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171 | |
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172 | return $result; |
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173 | } |
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174 | |
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175 | /** |
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176 | * Get max value plus one of a particular column. |
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177 | * |
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178 | * @param string $column |
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179 | * @param string $table |
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180 | * @param int |
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181 | */ |
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182 | function pwg_db_nextval($column, $table) |
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183 | { |
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184 | $query = ' |
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185 | SELECT IF(MAX('.$column.')+1 IS NULL, 1, MAX('.$column.')+1) |
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186 | FROM '.$table; |
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187 | list($next) = pwg_db_fetch_row(pwg_query($query)); |
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188 | |
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189 | return $next; |
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190 | } |
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191 | |
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192 | function pwg_db_changes() |
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193 | { |
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194 | global $mysqli; |
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195 | |
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196 | return $mysqli->affected_rows; |
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197 | } |
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198 | |
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199 | function pwg_db_num_rows($result) |
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200 | { |
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201 | return $result->num_rows; |
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202 | } |
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203 | |
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204 | function pwg_db_fetch_array($result) |
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205 | { |
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206 | return $result->fetch_array(); |
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207 | } |
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208 | |
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209 | function pwg_db_fetch_assoc($result) |
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210 | { |
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211 | return $result->fetch_assoc(); |
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212 | } |
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213 | |
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214 | function pwg_db_fetch_row($result) |
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215 | { |
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216 | return $result->fetch_row(); |
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217 | } |
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218 | |
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219 | function pwg_db_fetch_object($result) |
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220 | { |
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221 | return $result->fetch_object(); |
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222 | } |
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223 | |
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224 | function pwg_db_free_result($result) |
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225 | { |
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226 | return $result->free_result(); |
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227 | } |
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228 | |
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229 | function pwg_db_real_escape_string($s) |
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230 | { |
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231 | global $mysqli; |
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232 | |
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233 | return $mysqli->real_escape_string($s); |
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234 | } |
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235 | |
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236 | function pwg_db_insert_id() |
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237 | { |
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238 | global $mysqli; |
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239 | |
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240 | return $mysqli->insert_id; |
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241 | } |
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242 | |
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243 | function pwg_db_errno() |
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244 | { |
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245 | global $mysqli; |
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246 | |
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247 | return $mysqli->errno; |
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248 | } |
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249 | |
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250 | function pwg_db_error() |
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251 | { |
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252 | global $mysqli; |
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253 | |
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254 | return $mysqli->error; |
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255 | } |
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256 | |
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257 | function pwg_db_close() |
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258 | { |
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259 | global $mysqli; |
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260 | |
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261 | return $mysqli->close(); |
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262 | } |
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263 | |
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264 | |
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265 | define('MASS_UPDATES_SKIP_EMPTY', 1); |
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266 | |
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267 | /** |
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268 | * Updates multiple lines in a table. |
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269 | * |
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270 | * @param string $tablename |
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271 | * @param array $dbfields - contains 'primary' and 'update' arrays |
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272 | * @param array $datas - indexed by column names |
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273 | * @param int $flags - if MASS_UPDATES_SKIP_EMPTY, empty values do not overwrite existing ones |
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274 | */ |
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275 | function mass_updates($tablename, $dbfields, $datas, $flags=0) |
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276 | { |
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277 | if (count($datas) == 0) |
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278 | { |
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279 | return; |
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280 | } |
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281 | |
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282 | // we use the multi table update or N update queries |
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283 | if (count($datas) < 10) |
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284 | { |
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285 | foreach ($datas as $data) |
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286 | { |
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287 | $is_first = true; |
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288 | |
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289 | $query = ' |
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290 | UPDATE '.$tablename.' |
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291 | SET '; |
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292 | |
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293 | foreach ($dbfields['update'] as $key) |
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294 | { |
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295 | $separator = $is_first ? '' : ",\n "; |
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296 | |
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297 | if (isset($data[$key]) and $data[$key] != '') |
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298 | { |
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299 | $query.= $separator.$key.' = \''.$data[$key].'\''; |
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300 | } |
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301 | else |
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302 | { |
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303 | if ($flags & MASS_UPDATES_SKIP_EMPTY) |
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304 | { |
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305 | continue; // next field |
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306 | } |
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307 | $query.= "$separator$key = NULL"; |
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308 | } |
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309 | $is_first = false; |
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310 | } |
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311 | |
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312 | if (!$is_first) |
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313 | {// only if one field at least updated |
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314 | $is_first = true; |
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315 | |
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316 | $query.= ' |
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317 | WHERE '; |
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318 | foreach ($dbfields['primary'] as $key) |
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319 | { |
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320 | if (!$is_first) |
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321 | { |
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322 | $query.= ' AND '; |
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323 | } |
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324 | if (isset($data[$key])) |
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325 | { |
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326 | $query.= $key.' = \''.$data[$key].'\''; |
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327 | } |
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328 | else |
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329 | { |
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330 | $query.= $key.' IS NULL'; |
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331 | } |
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332 | $is_first = false; |
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333 | } |
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334 | |
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335 | pwg_query($query); |
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336 | } |
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337 | } // foreach update |
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338 | } // if count<X |
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339 | else |
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340 | { |
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341 | // creation of the temporary table |
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342 | $result = pwg_query('SHOW FULL COLUMNS FROM '.$tablename); |
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343 | $columns = array(); |
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344 | $all_fields = array_merge($dbfields['primary'], $dbfields['update']); |
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345 | |
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346 | while ($row = pwg_db_fetch_assoc($result)) |
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347 | { |
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348 | if (in_array($row['Field'], $all_fields)) |
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349 | { |
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350 | $column = $row['Field']; |
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351 | $column.= ' '.$row['Type']; |
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352 | |
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353 | $nullable = true; |
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354 | if (!isset($row['Null']) or $row['Null'] == '' or $row['Null']=='NO') |
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355 | { |
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356 | $column.= ' NOT NULL'; |
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357 | $nullable = false; |
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358 | } |
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359 | if (isset($row['Default'])) |
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360 | { |
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361 | $column.= " default '".$row['Default']."'"; |
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362 | } |
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363 | elseif ($nullable) |
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364 | { |
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365 | $column.= " default NULL"; |
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366 | } |
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367 | if (isset($row['Collation']) and $row['Collation'] != 'NULL') |
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368 | { |
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369 | $column.= " collate '".$row['Collation']."'"; |
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370 | } |
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371 | $columns[] = $column; |
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372 | } |
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373 | } |
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374 | |
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375 | $temporary_tablename = $tablename.'_'.micro_seconds(); |
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376 | |
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377 | $query = ' |
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378 | CREATE TABLE '.$temporary_tablename.' |
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379 | ( |
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380 | '.implode(",\n ", $columns).', |
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381 | UNIQUE KEY the_key ('.implode(',', $dbfields['primary']).') |
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382 | )'; |
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383 | |
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384 | pwg_query($query); |
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385 | mass_inserts($temporary_tablename, $all_fields, $datas); |
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386 | |
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387 | if ($flags & MASS_UPDATES_SKIP_EMPTY) |
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388 | $func_set = create_function('$s', 'return "t1.$s = IFNULL(t2.$s, t1.$s)";'); |
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389 | else |
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390 | $func_set = create_function('$s', 'return "t1.$s = t2.$s";'); |
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391 | |
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392 | // update of table by joining with temporary table |
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393 | $query = ' |
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394 | UPDATE '.$tablename.' AS t1, '.$temporary_tablename.' AS t2 |
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395 | SET '. |
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396 | implode( |
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397 | "\n , ", |
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398 | array_map($func_set,$dbfields['update']) |
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399 | ).' |
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400 | WHERE '. |
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401 | implode( |
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402 | "\n AND ", |
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403 | array_map( |
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404 | create_function('$s', 'return "t1.$s = t2.$s";'), |
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405 | $dbfields['primary'] |
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406 | ) |
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407 | ); |
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408 | pwg_query($query); |
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409 | |
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410 | pwg_query('DROP TABLE '.$temporary_tablename); |
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411 | } |
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412 | } |
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413 | |
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414 | /** |
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415 | * Updates one line in a table. |
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416 | * |
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417 | * @param string $tablename |
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418 | * @param array $datas |
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419 | * @param array $where |
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420 | * @param int $flags - if MASS_UPDATES_SKIP_EMPTY, empty values do not overwrite existing ones |
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421 | */ |
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422 | function single_update($tablename, $datas, $where, $flags=0) |
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423 | { |
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424 | if (count($datas) == 0) |
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425 | { |
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426 | return; |
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427 | } |
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428 | |
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429 | $is_first = true; |
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430 | |
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431 | $query = ' |
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432 | UPDATE '.$tablename.' |
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433 | SET '; |
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434 | |
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435 | foreach ($datas as $key => $value) |
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436 | { |
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437 | $separator = $is_first ? '' : ",\n "; |
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438 | |
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439 | if (isset($value) and $value !== '') |
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440 | { |
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441 | $query.= $separator.$key.' = \''.$value.'\''; |
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442 | } |
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443 | else |
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444 | { |
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445 | if ($flags & MASS_UPDATES_SKIP_EMPTY) |
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446 | { |
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447 | continue; // next field |
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448 | } |
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449 | $query.= "$separator$key = NULL"; |
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450 | } |
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451 | $is_first = false; |
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452 | } |
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453 | |
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454 | if (!$is_first) |
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455 | {// only if one field at least updated |
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456 | $is_first = true; |
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457 | |
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458 | $query.= ' |
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459 | WHERE '; |
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460 | |
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461 | foreach ($where as $key => $value) |
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462 | { |
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463 | if (!$is_first) |
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464 | { |
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465 | $query.= ' AND '; |
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466 | } |
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467 | if (isset($value)) |
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468 | { |
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469 | $query.= $key.' = \''.$value.'\''; |
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470 | } |
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471 | else |
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472 | { |
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473 | $query.= $key.' IS NULL'; |
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474 | } |
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475 | $is_first = false; |
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476 | } |
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477 | |
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478 | pwg_query($query); |
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479 | } |
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480 | } |
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481 | |
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482 | /** |
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483 | * Inserts multiple lines in a table. |
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484 | * |
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485 | * @param string $table_name |
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486 | * @param array $dbfields - fields from $datas which will be used |
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487 | * @param array $datas |
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488 | * @param array $options |
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489 | * - boolean ignore - use "INSERT IGNORE" |
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490 | */ |
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491 | function mass_inserts($table_name, $dbfields, $datas, $options=array()) |
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492 | { |
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493 | $ignore = ''; |
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494 | if (isset($options['ignore']) and $options['ignore']) |
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495 | { |
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496 | $ignore = 'IGNORE'; |
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497 | } |
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498 | |
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499 | if (count($datas) != 0) |
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500 | { |
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501 | $first = true; |
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502 | |
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503 | $query = 'SHOW VARIABLES LIKE \'max_allowed_packet\''; |
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504 | list(, $packet_size) = pwg_db_fetch_row(pwg_query($query)); |
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505 | $packet_size = $packet_size - 2000; // The last list of values MUST not exceed 2000 character*/ |
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506 | $query = ''; |
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507 | |
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508 | foreach ($datas as $insert) |
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509 | { |
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510 | if (strlen($query) >= $packet_size) |
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511 | { |
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512 | pwg_query($query); |
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513 | $first = true; |
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514 | } |
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515 | |
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516 | if ($first) |
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517 | { |
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518 | $query = ' |
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519 | INSERT '.$ignore.' INTO '.$table_name.' |
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520 | ('.implode(',', $dbfields).') |
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521 | VALUES'; |
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522 | $first = false; |
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523 | } |
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524 | else |
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525 | { |
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526 | $query .= ' |
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527 | , '; |
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528 | } |
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529 | |
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530 | $query .= '('; |
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531 | foreach ($dbfields as $field_id => $dbfield) |
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532 | { |
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533 | if ($field_id > 0) |
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534 | { |
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535 | $query .= ','; |
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536 | } |
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537 | |
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538 | if (!isset($insert[$dbfield]) or $insert[$dbfield] === '') |
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539 | { |
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540 | $query .= 'NULL'; |
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541 | } |
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542 | else |
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543 | { |
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544 | $query .= "'".$insert[$dbfield]."'"; |
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545 | } |
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546 | } |
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547 | $query .= ')'; |
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548 | } |
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549 | |
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550 | pwg_query($query); |
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551 | } |
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552 | } |
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553 | |
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554 | /** |
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555 | * Inserts one line in a table. |
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556 | * |
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557 | * @param string $table_name |
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558 | * @param array $data |
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559 | */ |
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560 | function single_insert($table_name, $data) |
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561 | { |
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562 | if (count($data) != 0) |
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563 | { |
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564 | $query = ' |
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565 | INSERT INTO '.$table_name.' |
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566 | ('.implode(',', array_keys($data)).') |
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567 | VALUES'; |
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568 | |
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569 | $query .= '('; |
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570 | $is_first = true; |
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571 | foreach ($data as $key => $value) |
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572 | { |
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573 | if (!$is_first) |
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574 | { |
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575 | $query .= ','; |
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576 | } |
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577 | else |
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578 | { |
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579 | $is_first = false; |
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580 | } |
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581 | |
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582 | if ($value === '') |
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583 | { |
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584 | $query .= 'NULL'; |
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585 | } |
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586 | else |
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587 | { |
---|
588 | $query .= "'".$value."'"; |
---|
589 | } |
---|
590 | } |
---|
591 | $query .= ')'; |
---|
592 | |
---|
593 | pwg_query($query); |
---|
594 | } |
---|
595 | } |
---|
596 | |
---|
597 | |
---|
598 | /** |
---|
599 | * Do maintenance on all Piwigo tables |
---|
600 | */ |
---|
601 | function do_maintenance_all_tables() |
---|
602 | { |
---|
603 | global $prefixeTable, $page; |
---|
604 | |
---|
605 | $all_tables = array(); |
---|
606 | |
---|
607 | // List all tables |
---|
608 | $query = 'SHOW TABLES LIKE \''.$prefixeTable.'%\''; |
---|
609 | $result = pwg_query($query); |
---|
610 | while ($row = pwg_db_fetch_row($result)) |
---|
611 | { |
---|
612 | $all_tables[] = $row[0]; |
---|
613 | } |
---|
614 | |
---|
615 | // Repair all tables |
---|
616 | $query = 'REPAIR TABLE '.implode(', ', $all_tables); |
---|
617 | $mysqli_rc = pwg_query($query); |
---|
618 | |
---|
619 | // Re-Order all tables |
---|
620 | foreach ($all_tables as $table_name) |
---|
621 | { |
---|
622 | $all_primary_key = array(); |
---|
623 | |
---|
624 | $query = 'DESC '.$table_name.';'; |
---|
625 | $result = pwg_query($query); |
---|
626 | while ($row = pwg_db_fetch_assoc($result)) |
---|
627 | { |
---|
628 | if ($row['Key'] == 'PRI') |
---|
629 | { |
---|
630 | $all_primary_key[] = $row['Field']; |
---|
631 | } |
---|
632 | } |
---|
633 | |
---|
634 | if (count($all_primary_key) != 0) |
---|
635 | { |
---|
636 | $query = 'ALTER TABLE '.$table_name.' ORDER BY '.implode(', ', $all_primary_key).';'; |
---|
637 | $mysqli_rc = $mysqli_rc && pwg_query($query); |
---|
638 | } |
---|
639 | } |
---|
640 | |
---|
641 | // Optimize all tables |
---|
642 | $query = 'OPTIMIZE TABLE '.implode(', ', $all_tables); |
---|
643 | $mysqli_rc = $mysqli_rc && pwg_query($query); |
---|
644 | if ($mysqli_rc) |
---|
645 | { |
---|
646 | $page['infos'][] = l10n('All optimizations have been successfully completed.'); |
---|
647 | } |
---|
648 | else |
---|
649 | { |
---|
650 | $page['errors'][] = l10n('Optimizations have been completed with some errors.'); |
---|
651 | } |
---|
652 | } |
---|
653 | |
---|
654 | function pwg_db_concat($array) |
---|
655 | { |
---|
656 | $string = implode($array, ','); |
---|
657 | return 'CONCAT('. $string.')'; |
---|
658 | } |
---|
659 | |
---|
660 | function pwg_db_concat_ws($array, $separator) |
---|
661 | { |
---|
662 | $string = implode($array, ','); |
---|
663 | return 'CONCAT_WS(\''.$separator.'\','. $string.')'; |
---|
664 | } |
---|
665 | |
---|
666 | function pwg_db_cast_to_text($string) |
---|
667 | { |
---|
668 | return $string; |
---|
669 | } |
---|
670 | |
---|
671 | /** |
---|
672 | * Returns an array containing the possible values of an enum field. |
---|
673 | * |
---|
674 | * @param string $table |
---|
675 | * @param string $field |
---|
676 | * @return string[] |
---|
677 | */ |
---|
678 | function get_enums($table, $field) |
---|
679 | { |
---|
680 | $result = pwg_query('DESC '.$table); |
---|
681 | while ($row = pwg_db_fetch_assoc($result)) |
---|
682 | { |
---|
683 | if ($row['Field'] == $field) |
---|
684 | { |
---|
685 | // parse enum('blue','green','black') |
---|
686 | $options = explode(',', substr($row['Type'], 5, -1)); |
---|
687 | foreach ($options as $i => $option) |
---|
688 | { |
---|
689 | $options[$i] = str_replace("'", '',$option); |
---|
690 | } |
---|
691 | } |
---|
692 | } |
---|
693 | |
---|
694 | pwg_db_free_result($result); |
---|
695 | return $options; |
---|
696 | } |
---|
697 | |
---|
698 | /** |
---|
699 | * Checks if a variable is equivalent to true or false. |
---|
700 | * |
---|
701 | * @param mixed $input |
---|
702 | * @return bool |
---|
703 | */ |
---|
704 | function get_boolean($input) |
---|
705 | { |
---|
706 | if ('false' === strtolower($input)) |
---|
707 | { |
---|
708 | return false; |
---|
709 | } |
---|
710 | |
---|
711 | return (bool)$input; |
---|
712 | } |
---|
713 | |
---|
714 | /** |
---|
715 | * Returns string 'true' or 'false' if the given var is boolean. |
---|
716 | * If the input is another type, it is not changed. |
---|
717 | * |
---|
718 | * @param mixed $var |
---|
719 | * @return mixed |
---|
720 | */ |
---|
721 | function boolean_to_string($var) |
---|
722 | { |
---|
723 | if (is_bool($var)) |
---|
724 | { |
---|
725 | return $var ? 'true' : 'false'; |
---|
726 | } |
---|
727 | else |
---|
728 | { |
---|
729 | return $var; |
---|
730 | } |
---|
731 | } |
---|
732 | |
---|
733 | function pwg_db_get_recent_period_expression($period, $date='CURRENT_DATE') |
---|
734 | { |
---|
735 | if ($date!='CURRENT_DATE') |
---|
736 | { |
---|
737 | $date = '\''.$date.'\''; |
---|
738 | } |
---|
739 | |
---|
740 | return 'SUBDATE('.$date.',INTERVAL '.$period.' DAY)'; |
---|
741 | } |
---|
742 | |
---|
743 | function pwg_db_get_recent_period($period, $date='CURRENT_DATE') |
---|
744 | { |
---|
745 | $query = ' |
---|
746 | SELECT '.pwg_db_get_recent_period_expression($period); |
---|
747 | list($d) = pwg_db_fetch_row(pwg_query($query)); |
---|
748 | |
---|
749 | return $d; |
---|
750 | } |
---|
751 | |
---|
752 | function pwg_db_get_flood_period_expression($seconds) |
---|
753 | { |
---|
754 | return 'SUBDATE(NOW(), INTERVAL '.$seconds.' SECOND)'; |
---|
755 | } |
---|
756 | |
---|
757 | function pwg_db_get_hour($date) |
---|
758 | { |
---|
759 | return 'HOUR('.$date.')'; |
---|
760 | } |
---|
761 | |
---|
762 | function pwg_db_get_date_YYYYMM($date) |
---|
763 | { |
---|
764 | return 'DATE_FORMAT('.$date.', \'%Y%m\')'; |
---|
765 | } |
---|
766 | |
---|
767 | function pwg_db_get_date_MMDD($date) |
---|
768 | { |
---|
769 | return 'DATE_FORMAT('.$date.', \'%m%d\')'; |
---|
770 | } |
---|
771 | |
---|
772 | function pwg_db_get_year($date) |
---|
773 | { |
---|
774 | return 'YEAR('.$date.')'; |
---|
775 | } |
---|
776 | |
---|
777 | function pwg_db_get_month($date) |
---|
778 | { |
---|
779 | return 'MONTH('.$date.')'; |
---|
780 | } |
---|
781 | |
---|
782 | function pwg_db_get_week($date, $mode=null) |
---|
783 | { |
---|
784 | if ($mode) |
---|
785 | { |
---|
786 | return 'WEEK('.$date.', '.$mode.')'; |
---|
787 | } |
---|
788 | else |
---|
789 | { |
---|
790 | return 'WEEK('.$date.')'; |
---|
791 | } |
---|
792 | } |
---|
793 | |
---|
794 | function pwg_db_get_dayofmonth($date) |
---|
795 | { |
---|
796 | return 'DAYOFMONTH('.$date.')'; |
---|
797 | } |
---|
798 | |
---|
799 | function pwg_db_get_dayofweek($date) |
---|
800 | { |
---|
801 | return 'DAYOFWEEK('.$date.')'; |
---|
802 | } |
---|
803 | |
---|
804 | function pwg_db_get_weekday($date) |
---|
805 | { |
---|
806 | return 'WEEKDAY('.$date.')'; |
---|
807 | } |
---|
808 | |
---|
809 | function pwg_db_date_to_ts($date) |
---|
810 | { |
---|
811 | return 'UNIX_TIMESTAMP('.$date.')'; |
---|
812 | } |
---|
813 | |
---|
814 | /** |
---|
815 | * Returns (or send to standard output) the message concerning the |
---|
816 | * error occured for the last mysql query. |
---|
817 | */ |
---|
818 | function my_error($header, $die) |
---|
819 | { |
---|
820 | global $mysqli; |
---|
821 | |
---|
822 | $error = "[mysql error ".$mysqli->errno.'] '.$mysqli->error."\n"; |
---|
823 | $error .= $header; |
---|
824 | |
---|
825 | if ($die) |
---|
826 | { |
---|
827 | fatal_error($error); |
---|
828 | } |
---|
829 | echo("<pre>"); |
---|
830 | trigger_error($error, E_USER_WARNING); |
---|
831 | echo("</pre>"); |
---|
832 | } |
---|
833 | |
---|
834 | /** |
---|
835 | * Builds an data array from a SQL query. |
---|
836 | * Depending on $key_name and $value_name it can return : |
---|
837 | * |
---|
838 | * - an array of arrays of all fields (key=null, value=null) |
---|
839 | * array( |
---|
840 | * array('id'=>1, 'name'=>'DSC8956', ...), |
---|
841 | * array('id'=>2, 'name'=>'DSC8957', ...), |
---|
842 | * ... |
---|
843 | * ) |
---|
844 | * |
---|
845 | * - an array of a single field (key=null, value='...') |
---|
846 | * array('DSC8956', 'DSC8957', ...) |
---|
847 | * |
---|
848 | * - an associative array of array of all fields (key='...', value=null) |
---|
849 | * array( |
---|
850 | * 'DSC8956' => array('id'=>1, 'name'=>'DSC8956', ...), |
---|
851 | * 'DSC8957' => array('id'=>2, 'name'=>'DSC8957', ...), |
---|
852 | * ... |
---|
853 | * ) |
---|
854 | * |
---|
855 | * - an associative array of a single field (key='...', value='...') |
---|
856 | * array( |
---|
857 | * 'DSC8956' => 1, |
---|
858 | * 'DSC8957' => 2, |
---|
859 | * ... |
---|
860 | * ) |
---|
861 | * |
---|
862 | * @since 2.6 |
---|
863 | * |
---|
864 | * @param string $query |
---|
865 | * @param string $key_name |
---|
866 | * @param string $value_name |
---|
867 | * @return array |
---|
868 | */ |
---|
869 | function query2array($query, $key_name=null, $value_name=null) |
---|
870 | { |
---|
871 | $result = pwg_query($query); |
---|
872 | $data = array(); |
---|
873 | |
---|
874 | if (isset($key_name)) |
---|
875 | { |
---|
876 | if (isset($value_name)) |
---|
877 | { |
---|
878 | while ($row = $result->fetch_assoc()) |
---|
879 | $data[ $row[$key_name] ] = $row[$value_name]; |
---|
880 | } |
---|
881 | else |
---|
882 | { |
---|
883 | while ($row = $result->fetch_assoc()) |
---|
884 | $data[ $row[$key_name] ] = $row; |
---|
885 | } |
---|
886 | } |
---|
887 | else |
---|
888 | { |
---|
889 | if (isset($value_name)) |
---|
890 | { |
---|
891 | while ($row = $result->fetch_assoc()) |
---|
892 | $data[] = $row[$value_name]; |
---|
893 | } |
---|
894 | else |
---|
895 | { |
---|
896 | while ($row = $result->fetch_assoc()) |
---|
897 | $data[] = $row; |
---|
898 | } |
---|
899 | } |
---|
900 | |
---|
901 | return $data; |
---|
902 | } |
---|
903 | |
---|
904 | ?> |
---|