php下過濾html代碼的函數 提高程式安全性_PHP教程

以下為過濾HTML代碼的函數：
複製代碼 代碼如下:
function ihtmlspecialchars($string) {
if(is_array($string)) {
foreach($string as $key => $val) {
$string[$key] = ihtmlspecialchars($val);
}
} else {
$string = preg_replace('/&((#(\d{3,5}|x[a-fA-F0-9]{4})|[a-zA-Z][a-z0-9]{2,5});)/', '&\\1',
str_replace(array('&', '"', '<', '>'), array('&', '"', '<', '>'), $string));
}
return $string;
}


php下過濾HTML代碼的函數
複製代碼 代碼如下:
function htmlEncode($string) {
$string=trim($string);
$string=str_replace("&","&",$string);
$string=str_replace("'","'",$string);
$string=str_replace("&","&",$string);
$string=str_replace(""",""",$string);
$string=str_replace("\"",""",$string);
$string=str_replace("<","<",$string);
$string=str_replace("<","<",$string);
$string=str_replace(">",">",$string);
$string=str_replace(">",">",$string);
$string=str_replace(" "," ",$string);
$string=nl2br($string);
return $string;
}

http://www.bkjia.com/PHPjc/321398.htmlwww.bkjia.comtruehttp://www.bkjia.com/PHPjc/321398.htmlTechArticle以下為過濾HTML代碼的函數： 複製代碼 代碼如下: function ihtmlspecialchars($string) { if(is_array($string)) { foreach($string as $key = $val) { $string[$key] = ihtm...

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