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function dhtmlspecialchars($string, $flags = null) { if(is_array($string)) { foreach($string as $key => $val) { $string[$key] = dhtmlspecialchars($val, $flags); } } else { if($flags === null) { $string = str_replace(array('&', '"', '<', '>'), array('&', '"', '<', '>'), $string); if(strpos($string, '&#') !== false) { $string = preg_replace('/&((#(\d{3,5}|x[a-fA-F0-9]{4}));)/', '&\\1', $string); } } else { if(PHP_VERSION < '5.4.0') { $string = htmlspecialchars($string, $flags); } else { if(strtolower(CHARSET) == 'utf-8') { $charset = 'UTF-8'; } else { $charset = 'ISO-8859-1'; } $string = htmlspecialchars($string, $flags, $charset); } } } return $string; }
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- dhtmlspecialchars(trim($value))
复制代码,dhtmlspecialchars的作用是，防止跨站攻击，将网页中的字符转化为html实体！
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function dhtmlspecialchars($string, $flags = null) { if(is_array($string)) { foreach($string as $key => $val) { $string[$key] = dhtmlspecialchars($val, $flags); } } else { if($flags === null) { $string = str_replace(array('&', '"', '<', '>'), array('&', '"', '<', '>'), $string); if(strpos($string, '&#') !== false) { $string = preg_replace('/&((#(\d{3,5}|x[a-fA-F0-9]{4}));)/', '&\\1', $string); } } else { if(PHP_VERSION < '5.4.0') { $string = htmlspecialchars($string, $flags); } else { if(strtolower(CHARSET) == 'utf-8') { $charset = 'UTF-8'; } else { $charset = 'ISO-8859-1'; } $string = htmlspecialchars($string, $flags, $charset); } } } return $string; }
常见的使用方法：
- dhtmlspecialchars(trim($value))
复制代码
