| 1 | <?php |
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| 2 | // +-----------------------------------------------------------------------+ |
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| 3 | // | functions.inc.php | |
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| 4 | // +-----------------------------------------------------------------------+ |
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| 5 | // | application : PhpWebGallery <http://phpwebgallery.net> | |
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| 6 | // | branch : BSF (Best So Far) | |
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| 7 | // +-----------------------------------------------------------------------+ |
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| 8 | // | file : $RCSfile$ |
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| 9 | // | last update : $Date: 2004-09-26 21:24:49 +0000 (Sun, 26 Sep 2004) $ |
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| 10 | // | last modifier : $Author: gweltas $ |
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| 11 | // | revision : $Revision: 537 $ |
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| 12 | // +-----------------------------------------------------------------------+ |
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| 13 | // | This program is free software; you can redistribute it and/or modify | |
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| 14 | // | it under the terms of the GNU General Public License as published by | |
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| 15 | // | the Free Software Foundation | |
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| 16 | // | | |
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| 17 | // | This program is distributed in the hope that it will be useful, but | |
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| 18 | // | WITHOUT ANY WARRANTY; without even the implied warranty of | |
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| 19 | // | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
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| 20 | // | General Public License for more details. | |
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| 21 | // | | |
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| 22 | // | You should have received a copy of the GNU General Public License | |
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| 23 | // | along with this program; if not, write to the Free Software | |
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| 24 | // | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, | |
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| 25 | // | USA. | |
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| 26 | // +-----------------------------------------------------------------------+ |
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| 27 | |
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| 28 | include_once( PHPWG_ROOT_PATH .'include/functions_user.inc.php' ); |
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| 29 | include_once( PHPWG_ROOT_PATH .'include/functions_session.inc.php' ); |
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| 30 | include_once( PHPWG_ROOT_PATH .'include/functions_category.inc.php' ); |
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| 31 | include_once( PHPWG_ROOT_PATH .'include/functions_xml.inc.php' ); |
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| 32 | include_once( PHPWG_ROOT_PATH .'include/functions_group.inc.php' ); |
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| 33 | include_once( PHPWG_ROOT_PATH .'include/functions_html.inc.php' ); |
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| 34 | |
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| 35 | //----------------------------------------------------------- generic functions |
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| 36 | |
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| 37 | /** |
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| 38 | * possible values of an "enum" field |
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| 39 | * |
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| 40 | * get_enums returns an array containing the possible values of a enum field |
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| 41 | * in a table of the database. |
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| 42 | * |
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| 43 | * @param string table in the database |
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| 44 | * @param string field name in this table |
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| 45 | * @uses str_replace |
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| 46 | * @uses explode |
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| 47 | * @uses sizeof |
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| 48 | * @uses substr |
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| 49 | */ |
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| 50 | function get_enums( $table, $field ) |
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| 51 | { |
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| 52 | // retrieving the properties of the table. Each line represents a field : |
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| 53 | // columns are 'Field', 'Type' |
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| 54 | $result=mysql_query("desc $table"); |
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| 55 | while ( $row = mysql_fetch_array( $result ) ) |
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| 56 | { |
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| 57 | // we are only interested in the the field given in parameter for the |
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| 58 | // function |
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| 59 | if ( $row['Field']==$field ) |
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| 60 | { |
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| 61 | // retrieving possible values of the enum field |
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| 62 | // enum('blue','green','black') |
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| 63 | $option = explode( ',', substr($row['Type'], 5, -1 ) ); |
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| 64 | for ( $i = 0; $i < sizeof( $option ); $i++ ) |
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| 65 | { |
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| 66 | // deletion of quotation marks |
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| 67 | $option[$i] = str_replace( "'", '',$option[$i] ); |
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| 68 | } |
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| 69 | } |
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| 70 | } |
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| 71 | mysql_free_result( $result ); |
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| 72 | return $option; |
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| 73 | } |
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| 74 | |
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| 75 | // get_boolean transforms a string to a boolean value. If the string is |
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| 76 | // "false" (case insensitive), then the boolean value false is returned. In |
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| 77 | // any other case, true is returned. |
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| 78 | function get_boolean( $string ) |
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| 79 | { |
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| 80 | $boolean = true; |
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| 81 | if ( preg_match( '/^false$/i', $string ) ) |
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| 82 | { |
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| 83 | $boolean = false; |
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| 84 | } |
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| 85 | return $boolean; |
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| 86 | } |
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| 87 | |
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| 88 | // array_remove removes a value from the given array if the value existed in |
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| 89 | // this array. |
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| 90 | function array_remove( $array, $value ) |
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| 91 | { |
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| 92 | $output = array(); |
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| 93 | foreach ( $array as $v ) { |
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| 94 | if ( $v != $value ) array_push( $output, $v ); |
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| 95 | } |
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| 96 | return $output; |
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| 97 | } |
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| 98 | |
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| 99 | // The function get_moment returns a float value coresponding to the number |
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| 100 | // of seconds since the unix epoch (1st January 1970) and the microseconds |
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| 101 | // are precised : e.g. 1052343429.89276600 |
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| 102 | function get_moment() |
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| 103 | { |
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| 104 | $t1 = explode( ' ', microtime() ); |
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| 105 | $t2 = explode( '.', $t1[0] ); |
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| 106 | $t2 = $t1[1].'.'.$t2[1]; |
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| 107 | return $t2; |
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| 108 | } |
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| 109 | |
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| 110 | // The function get_elapsed_time returns the number of seconds (with 3 |
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| 111 | // decimals precision) between the start time and the end time given. |
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| 112 | function get_elapsed_time( $start, $end ) |
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| 113 | { |
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| 114 | return number_format( $end - $start, 3, '.', ' ').' s'; |
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| 115 | } |
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| 116 | |
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| 117 | // - The replace_space function replaces space and '-' characters |
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| 118 | // by their HTML equivalent &nbsb; and − |
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| 119 | // - The function does not replace characters in HTML tags |
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| 120 | // - This function was created because IE5 does not respect the |
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| 121 | // CSS "white-space: nowrap;" property unless space and minus |
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| 122 | // characters are replaced like this function does. |
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| 123 | // - Example : |
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| 124 | // <div class="foo">My friend</div> |
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| 125 | // ( 01234567891111111111222222222233 ) |
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| 126 | // ( 0123456789012345678901 ) |
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| 127 | // becomes : |
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| 128 | // <div class="foo">My friend</div> |
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| 129 | function replace_space( $string ) |
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| 130 | { |
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| 131 | //return $string; |
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| 132 | $return_string = ''; |
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| 133 | // $remaining is the rest of the string where to replace spaces characters |
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| 134 | $remaining = $string; |
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| 135 | // $start represents the position of the next '<' character |
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| 136 | // $end represents the position of the next '>' character |
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| 137 | $start = 0; |
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| 138 | $end = 0; |
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| 139 | $start = strpos ( $remaining, '<' ); // -> 0 |
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| 140 | $end = strpos ( $remaining, '>' ); // -> 16 |
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| 141 | // as long as a '<' and his friend '>' are found, we loop |
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| 142 | while ( is_numeric( $start ) and is_numeric( $end ) ) |
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| 143 | { |
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| 144 | // $treatment is the part of the string to treat |
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| 145 | // In the first loop of our example, this variable is empty, but in the |
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| 146 | // second loop, it equals 'My friend' |
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| 147 | $treatment = substr ( $remaining, 0, $start ); |
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| 148 | // Replacement of ' ' by his equivalent ' ' |
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| 149 | $treatment = str_replace( ' ', ' ', $treatment ); |
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| 150 | $treatment = str_replace( '-', '−', $treatment ); |
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| 151 | // composing the string to return by adding the treated string and the |
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| 152 | // following HTML tag -> 'My friend</div>' |
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| 153 | $return_string.= $treatment.substr( $remaining, $start, $end-$start+1 ); |
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| 154 | // the remaining string is deplaced to the part after the '>' of this |
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| 155 | // loop |
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| 156 | $remaining = substr ( $remaining, $end + 1, strlen( $remaining ) ); |
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| 157 | $start = strpos ( $remaining, '<' ); |
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| 158 | $end = strpos ( $remaining, '>' ); |
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| 159 | } |
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| 160 | $treatment = str_replace( ' ', ' ', $remaining ); |
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| 161 | $treatment = str_replace( '-', '−', $treatment ); |
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| 162 | $return_string.= $treatment; |
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| 163 | |
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| 164 | return $return_string; |
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| 165 | } |
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| 166 | |
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| 167 | // get_extension returns the part of the string after the last "." |
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| 168 | function get_extension( $filename ) |
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| 169 | { |
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| 170 | return substr( strrchr( $filename, '.' ), 1, strlen ( $filename ) ); |
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| 171 | } |
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| 172 | |
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| 173 | // get_filename_wo_extension returns the part of the string before the last |
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| 174 | // ".". |
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| 175 | // get_filename_wo_extension( 'test.tar.gz' ) -> 'test.tar' |
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| 176 | function get_filename_wo_extension( $filename ) |
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| 177 | { |
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| 178 | return substr( $filename, 0, strrpos( $filename, '.' ) ); |
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| 179 | } |
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| 180 | |
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| 181 | /** |
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| 182 | * returns an array contening sub-directories, excluding "CVS" |
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| 183 | * |
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| 184 | * @param string $dir |
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| 185 | * @return array |
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| 186 | */ |
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| 187 | function get_dirs($directory) |
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| 188 | { |
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| 189 | $sub_dirs = array(); |
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| 190 | |
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| 191 | if ($opendir = opendir($directory)) |
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| 192 | { |
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| 193 | while ($file = readdir($opendir)) |
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| 194 | { |
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| 195 | if ($file != '.' |
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| 196 | and $file != '..' |
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| 197 | and is_dir($directory.'/'.$file) |
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| 198 | and $file != 'CVS') |
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| 199 | { |
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| 200 | array_push($sub_dirs, $file); |
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| 201 | } |
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| 202 | } |
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| 203 | } |
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| 204 | return $sub_dirs; |
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| 205 | } |
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| 206 | |
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| 207 | // The get_picture_size function return an array containing : |
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| 208 | // - $picture_size[0] : final width |
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| 209 | // - $picture_size[1] : final height |
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| 210 | // The final dimensions are calculated thanks to the original dimensions and |
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| 211 | // the maximum dimensions given in parameters. get_picture_size respects |
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| 212 | // the width/height ratio |
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| 213 | function get_picture_size( $original_width, $original_height, |
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| 214 | $max_width, $max_height ) |
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| 215 | { |
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| 216 | $width = $original_width; |
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| 217 | $height = $original_height; |
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| 218 | $is_original_size = true; |
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| 219 | |
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| 220 | if ( $max_width != "" ) |
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| 221 | { |
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| 222 | if ( $original_width > $max_width ) |
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| 223 | { |
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| 224 | $width = $max_width; |
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| 225 | $height = floor( ( $width * $original_height ) / $original_width ); |
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| 226 | } |
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| 227 | } |
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| 228 | if ( $max_height != "" ) |
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| 229 | { |
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| 230 | if ( $original_height > $max_height ) |
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| 231 | { |
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| 232 | $height = $max_height; |
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| 233 | $width = floor( ( $height * $original_width ) / $original_height ); |
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| 234 | $is_original_size = false; |
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| 235 | } |
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| 236 | } |
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| 237 | if ( is_numeric( $max_width ) and is_numeric( $max_height ) |
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| 238 | and $max_width != 0 and $max_height != 0 ) |
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| 239 | { |
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| 240 | $ratioWidth = $original_width / $max_width; |
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| 241 | $ratioHeight = $original_height / $max_height; |
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| 242 | if ( ( $ratioWidth > 1 ) or ( $ratioHeight > 1 ) ) |
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| 243 | { |
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| 244 | if ( $ratioWidth < $ratioHeight ) |
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| 245 | { |
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| 246 | $width = floor( $original_width / $ratioHeight ); |
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| 247 | $height = $max_height; |
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| 248 | } |
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| 249 | else |
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| 250 | { |
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| 251 | $width = $max_width; |
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| 252 | $height = floor( $original_height / $ratioWidth ); |
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| 253 | } |
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| 254 | $is_original_size = false; |
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| 255 | } |
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| 256 | } |
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| 257 | $picture_size = array(); |
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| 258 | $picture_size[0] = $width; |
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| 259 | $picture_size[1] = $height; |
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| 260 | return $picture_size; |
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| 261 | } |
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| 262 | //-------------------------------------------- PhpWebGallery specific functions |
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| 263 | |
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| 264 | /** |
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| 265 | * returns an array with a list of {language_code => language_name} |
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| 266 | * |
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| 267 | * @returns array |
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| 268 | */ |
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| 269 | function get_languages() |
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| 270 | { |
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| 271 | $dir = opendir(PHPWG_ROOT_PATH.'language'); |
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| 272 | $languages = array(); |
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| 273 | |
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| 274 | while ($file = readdir($dir)) |
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| 275 | { |
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| 276 | $path = realpath(PHPWG_ROOT_PATH.'language/'.$file); |
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| 277 | if (is_dir($path) and !is_link($path) and file_exists($path.'/iso.txt')) |
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| 278 | { |
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| 279 | list($language_name) = @file($path.'/iso.txt'); |
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| 280 | $languages[$file] = $language_name; |
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| 281 | } |
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| 282 | } |
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| 283 | closedir($dir); |
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| 284 | @asort($languages); |
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| 285 | @reset($languages); |
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| 286 | |
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| 287 | return $languages; |
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| 288 | } |
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| 289 | |
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| 290 | /** |
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| 291 | * replaces the $search into <span style="$style">$search</span> in the |
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| 292 | * given $string. |
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| 293 | * |
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| 294 | * case insensitive replacements, does not replace characters in HTML tags |
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| 295 | * |
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| 296 | * @param string $string |
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| 297 | * @param string $search |
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| 298 | * @param string $style |
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| 299 | * @return string |
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| 300 | */ |
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| 301 | function add_style( $string, $search, $style ) |
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| 302 | { |
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| 303 | //return $string; |
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| 304 | $return_string = ''; |
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| 305 | $remaining = $string; |
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| 306 | |
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| 307 | $start = 0; |
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| 308 | $end = 0; |
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| 309 | $start = strpos ( $remaining, '<' ); |
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| 310 | $end = strpos ( $remaining, '>' ); |
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| 311 | while ( is_numeric( $start ) and is_numeric( $end ) ) |
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| 312 | { |
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| 313 | $treatment = substr ( $remaining, 0, $start ); |
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| 314 | $treatment = preg_replace( '/('.$search.')/i', |
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| 315 | '<span style="'.$style.'">\\0</span>', |
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| 316 | $treatment ); |
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| 317 | $return_string.= $treatment.substr( $remaining, $start, $end-$start+1 ); |
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| 318 | $remaining = substr ( $remaining, $end + 1, strlen( $remaining ) ); |
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| 319 | $start = strpos ( $remaining, '<' ); |
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| 320 | $end = strpos ( $remaining, '>' ); |
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| 321 | } |
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| 322 | $treatment = preg_replace( '/('.$search.')/i', |
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| 323 | '<span style="'.$style.'">\\0</span>', |
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| 324 | $remaining ); |
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| 325 | $return_string.= $treatment; |
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| 326 | |
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| 327 | return $return_string; |
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| 328 | } |
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| 329 | |
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| 330 | // replace_search replaces a searched words array string by the search in |
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| 331 | // another style for the given $string. |
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| 332 | function replace_search( $string, $search ) |
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| 333 | { |
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| 334 | $words = explode( ',', $search ); |
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| 335 | $style = 'background-color:white;color:red;'; |
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| 336 | foreach ( $words as $word ) { |
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| 337 | $string = add_style( $string, $word, $style ); |
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| 338 | } |
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| 339 | return $string; |
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| 340 | } |
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| 341 | |
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| 342 | function pwg_log( $file, $category, $picture = '' ) |
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| 343 | { |
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| 344 | global $conf, $user; |
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| 345 | |
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| 346 | if ( $conf['log'] ) |
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| 347 | { |
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| 348 | $query = 'insert into '.HISTORY_TABLE; |
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| 349 | $query.= ' (date,login,IP,file,category,picture) values'; |
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| 350 | $query.= " (NOW(), '".$user['username']."'"; |
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| 351 | $query.= ",'".$_SERVER['REMOTE_ADDR']."'"; |
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| 352 | $query.= ",'".$file."','".$category."','".$picture."');"; |
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| 353 | mysql_query( $query ); |
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| 354 | } |
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| 355 | } |
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| 356 | |
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| 357 | // format_date returns a formatted date for display. The date given in |
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| 358 | // argument can be a unixdate (number of seconds since the 01.01.1970) or an |
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| 359 | // american format (2003-09-15). By option, you can show the time. The |
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| 360 | // output is internationalized. |
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| 361 | // |
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| 362 | // format_date( "2003-09-15", 'us', true ) -> "Monday 15 September 2003 21:52" |
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| 363 | function format_date( $date, $type = 'us', $show_time = false ) |
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| 364 | { |
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| 365 | global $lang; |
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| 366 | |
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| 367 | switch ( $type ) |
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| 368 | { |
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| 369 | case 'us' : |
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| 370 | list( $year,$month,$day ) = explode( '-', $date ); |
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| 371 | $unixdate = mktime(0,0,0,$month,$day,$year); |
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| 372 | break; |
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| 373 | case 'unix' : |
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| 374 | $unixdate = $date; |
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| 375 | break; |
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| 376 | case 'mysql_datetime' : |
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| 377 | preg_match( '/^(\d{4})-(\d{2})-(\d{2}) (\d{2}):(\d{2}):(\d{2})$/', |
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| 378 | $date, $matches ); |
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| 379 | $unixdate = mktime($matches[4],$matches[5],$matches[6], |
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| 380 | $matches[2],$matches[3],$matches[1]); |
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| 381 | break; |
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| 382 | } |
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| 383 | $formated_date = $lang['day'][date( "w", $unixdate )]; |
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| 384 | $formated_date.= date( " j ", $unixdate ); |
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| 385 | $formated_date.= $lang['month'][date( "n", $unixdate )]; |
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| 386 | $formated_date.= date( ' Y', $unixdate ); |
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| 387 | if ( $show_time ) |
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| 388 | { |
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| 389 | $formated_date.= date( ' G:i', $unixdate ); |
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| 390 | } |
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| 391 | |
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| 392 | return $formated_date; |
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| 393 | } |
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| 394 | |
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| 395 | // notify sends a email to every admin of the gallery |
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| 396 | function notify( $type, $infos = '' ) |
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| 397 | { |
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| 398 | global $conf; |
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| 399 | |
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| 400 | $headers = 'From: '.$conf['webmaster'].' <'.$conf['mail_webmaster'].'>'."\n"; |
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| 401 | $headers.= 'Reply-To: '.$conf['mail_webmaster']."\n"; |
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| 402 | $headers.= 'X-Mailer: PhpWebGallery, PHP '.phpversion(); |
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| 403 | |
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| 404 | $options = '-f '.$conf['mail_webmaster']; |
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| 405 | // retrieving all administrators |
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| 406 | $query = 'SELECT username,mail_address,language'; |
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| 407 | $query.= ' FROM '.USERS_TABLE; |
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| 408 | $query.= " WHERE status = 'admin'"; |
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| 409 | $query.= ' AND mail_address IS NOT NULL'; |
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| 410 | $query.= ';'; |
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| 411 | $result = mysql_query( $query ); |
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| 412 | while ( $row = mysql_fetch_array( $result ) ) |
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| 413 | { |
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| 414 | $to = $row['mail_address']; |
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| 415 | include( PHPWG_ROOT_PATH.'language/'.$row['language'].'/common.lang.php' ); |
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| 416 | $content = $lang['mail_hello']."\n\n"; |
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| 417 | switch ( $type ) |
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| 418 | { |
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| 419 | case 'upload' : |
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| 420 | $subject = $lang['mail_new_upload_subject']; |
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| 421 | $content.= $lang['mail_new_upload_content']; |
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| 422 | break; |
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| 423 | case 'comment' : |
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| 424 | $subject = $lang['mail_new_comment_subject']; |
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| 425 | $content.= $lang['mail_new_comment_content']; |
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| 426 | break; |
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| 427 | } |
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| 428 | $infos = str_replace( ' ', ' ', $infos ); |
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| 429 | $infos = str_replace( '−', '-', $infos ); |
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| 430 | $content.= "\n\n".$infos; |
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| 431 | $content.= "\n\n-- \nPhpWebGallery ".$conf['version']; |
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| 432 | $content = wordwrap( $content, 72 ); |
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| 433 | @mail( $to, $subject, $content, $headers, $options ); |
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| 434 | } |
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| 435 | } |
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| 436 | |
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| 437 | function pwg_write_debug() |
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| 438 | { |
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| 439 | global $debug; |
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| 440 | |
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| 441 | $fp = @fopen( './log/debug.log', 'a+' ); |
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| 442 | fwrite( $fp, "\n\n" ); |
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| 443 | fwrite( $fp, $debug ); |
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| 444 | fclose( $fp ); |
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| 445 | } |
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| 446 | |
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| 447 | function pwg_query( $query ) |
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| 448 | { |
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| 449 | global $count_queries,$queries_time; |
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| 450 | |
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| 451 | $start = get_moment(); |
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| 452 | $output = ''; |
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| 453 | |
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| 454 | $count_queries++; |
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| 455 | $output.= '<br /><br />['.$count_queries.'] '.$query; |
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| 456 | $result = mysql_query( $query ); |
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| 457 | $time = get_moment() - $start; |
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| 458 | $queries_time+= $time; |
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| 459 | $output.= '<b>('.number_format( $time, 3, '.', ' ').' s)</b>'; |
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| 460 | $output.= '('.number_format( $queries_time, 3, '.', ' ').' s)'; |
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| 461 | |
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| 462 | // echo $output; |
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| 463 | |
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| 464 | return $result; |
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| 465 | } |
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| 466 | |
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| 467 | function pwg_debug( $string ) |
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| 468 | { |
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| 469 | global $debug,$t2,$count_queries; |
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| 470 | |
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| 471 | $now = explode( ' ', microtime() ); |
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| 472 | $now2 = explode( '.', $now[0] ); |
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| 473 | $now2 = $now[1].'.'.$now2[1]; |
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| 474 | $time = number_format( $now2 - $t2, 3, '.', ' ').' s'; |
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| 475 | $debug.= '['.$time.', '; |
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| 476 | $debug.= $count_queries.' queries] : '.$string; |
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| 477 | $debug.= "\n"; |
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| 478 | } |
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| 479 | |
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| 480 | /** |
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| 481 | * Redirects to the given URL |
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| 482 | * |
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| 483 | * Note : once this function called, the execution doesn't go further |
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| 484 | * (presence of an exit() instruction. |
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| 485 | * |
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| 486 | * @param string $url |
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| 487 | * @return void |
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| 488 | */ |
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| 489 | function redirect( $url ) |
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| 490 | { |
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| 491 | global $user, $template, $lang_info, $conf, $lang, $t2; |
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| 492 | |
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| 493 | // $refresh, $url_link and $title are required for creating an automated |
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| 494 | // refresh page in header.tpl |
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| 495 | $refresh = 1; |
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| 496 | $url_link = $url; |
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| 497 | $title = 'redirection'; |
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| 498 | include( PHPWG_ROOT_PATH.'include/page_header.php' ); |
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| 499 | |
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| 500 | $template->set_filenames( array( 'redirect' => 'redirect.tpl' ) ); |
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| 501 | $template->pparse('redirect'); |
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| 502 | |
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| 503 | include( PHPWG_ROOT_PATH.'include/page_tail.php' ); |
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| 504 | |
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| 505 | exit(); |
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| 506 | } |
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| 507 | |
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| 508 | /** |
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| 509 | * returns $_SERVER['QUERY_STRING'] whitout keys given in parameters |
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| 510 | * |
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| 511 | * @param array $rejects |
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| 512 | * @returns string |
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| 513 | */ |
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| 514 | function get_query_string_diff($rejects = array()) |
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| 515 | { |
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| 516 | $query_string = ''; |
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| 517 | |
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| 518 | $str = $_SERVER['QUERY_STRING']; |
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| 519 | parse_str($str, $vars); |
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| 520 | |
|---|
| 521 | $is_first = true; |
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| 522 | foreach ($vars as $key => $value) |
|---|
| 523 | { |
|---|
| 524 | if (!in_array($key, $rejects)) |
|---|
| 525 | { |
|---|
| 526 | if ($is_first) |
|---|
| 527 | { |
|---|
| 528 | $query_string.= '?'; |
|---|
| 529 | $is_first = false; |
|---|
| 530 | } |
|---|
| 531 | else |
|---|
| 532 | { |
|---|
| 533 | $query_string.= '&'; |
|---|
| 534 | } |
|---|
| 535 | $query_string.= $key.'='.$value; |
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| 536 | } |
|---|
| 537 | } |
|---|
| 538 | |
|---|
| 539 | return $query_string; |
|---|
| 540 | } |
|---|
| 541 | |
|---|
| 542 | /** |
|---|
| 543 | * returns available templates |
|---|
| 544 | */ |
|---|
| 545 | function get_templates() |
|---|
| 546 | { |
|---|
| 547 | return get_dirs(PHPWG_ROOT_PATH.'template'); |
|---|
| 548 | } |
|---|
| 549 | ?> |
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