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55 lines
1.6 KiB
55 lines
1.6 KiB
<?php |
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/** |
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* Smarty plugin |
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* |
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* @package Smarty |
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* @subpackage PluginsModifier |
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*/ |
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/** |
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* Smarty regex_replace modifier plugin |
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* Type: modifier |
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* Name: regex_replace |
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* Purpose: regular expression search/replace |
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* |
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* @link https://www.smarty.net/manual/en/language.modifier.regex.replace.php |
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* regex_replace (Smarty online manual) |
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* @author Monte Ohrt <monte at ohrt dot com> |
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* |
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* @param string $string input string |
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* @param string|array $search regular expression(s) to search for |
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* @param string|array $replace string(s) that should be replaced |
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* @param int $limit the maximum number of replacements |
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* |
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* @return string |
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*/ |
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function smarty_modifier_regex_replace($string, $search, $replace, $limit = -1) |
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{ |
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if (is_array($search)) { |
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foreach ($search as $idx => $s) { |
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$search[ $idx ] = _smarty_regex_replace_check($s); |
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} |
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} else { |
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$search = _smarty_regex_replace_check($search); |
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} |
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return preg_replace($search, $replace, $string, $limit); |
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} |
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/** |
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* @param string $search string(s) that should be replaced |
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* |
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* @return string |
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* @ignore |
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*/ |
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function _smarty_regex_replace_check($search) |
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{ |
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// null-byte injection detection |
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// anything behind the first null-byte is ignored |
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if (($pos = strpos($search, "\0")) !== false) { |
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$search = substr($search, 0, $pos); |
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} |
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// remove eval-modifier from $search |
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if (preg_match('!([a-zA-Z\s]+)$!s', $search, $match) && (strpos($match[ 1 ], 'e') !== false)) { |
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$search = substr($search, 0, -strlen($match[ 1 ])) . preg_replace('![e\s]+!', '', $match[ 1 ]); |
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} |
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return $search; |
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}
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