1 | <?php |
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2 | /** |
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3 | * Smarty plugin |
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4 | * |
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5 | * @package Smarty |
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6 | * @subpackage PluginsModifier |
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7 | */ |
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8 | |
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9 | /** |
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10 | * Smarty regex_replace modifier plugin |
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11 | * |
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12 | * Type: modifier<br> |
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13 | * Name: regex_replace<br> |
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14 | * Purpose: regular expression search/replace |
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15 | * |
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16 | * @link http://smarty.php.net/manual/en/language.modifier.regex.replace.php |
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17 | * regex_replace (Smarty online manual) |
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18 | * @author Monte Ohrt <monte at ohrt dot com> |
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19 | * @param string $string input string |
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20 | * @param string|array $search regular expression(s) to search for |
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21 | * @param string|array $replace string(s) that should be replaced |
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22 | * @return string |
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23 | */ |
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24 | function smarty_modifier_regex_replace($string, $search, $replace) |
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25 | { |
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26 | if(is_array($search)) { |
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27 | foreach($search as $idx => $s) { |
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28 | $search[$idx] = _smarty_regex_replace_check($s); |
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29 | } |
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30 | } else { |
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31 | $search = _smarty_regex_replace_check($search); |
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32 | } |
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33 | return preg_replace($search, $replace, $string); |
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34 | } |
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35 | |
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36 | /** |
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37 | * @param string $search string(s) that should be replaced |
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38 | * @return string |
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39 | * @ignore |
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40 | */ |
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41 | function _smarty_regex_replace_check($search) |
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42 | { |
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43 | // null-byte injection detection |
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44 | // anything behind the first null-byte is ignored |
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45 | if (($pos = strpos($search,"\0")) !== false) { |
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46 | $search = substr($search,0,$pos); |
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47 | } |
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48 | // remove eval-modifier from $search |
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49 | if (preg_match('!([a-zA-Z\s]+)$!s', $search, $match) && (strpos($match[1], 'e') !== false)) { |
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50 | $search = substr($search, 0, -strlen($match[1])) . preg_replace('![e\s]+!', '', $match[1]); |
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51 | } |
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52 | return $search; |
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53 | } |
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54 | |
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55 | ?> |
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