$_GET     && SafeFilter($_GET);
$_POST    && SafeFilter($_POST);
$_COOKIE  && SafeFilter($_COOKIE);
function SafeFilter (&$arr){
    $ra=Array('/([x00-x08,x0b-x0c,x0e-x19])/','/script/','/javascript/','/vbscript/','/expression/','/applet/','/meta/','/xml/','/blink/','/link/','/style/','/embed/','/object/','/frame/','/layer/','/title/','/bgsound/','/base/','/onload/','/onunload/','/onchange/','/onsubmit/','/onreset/','/onselect/','/onblur/','/onfocus/','/onabort/','/onkeydown/','/onkeypress/','/onkeyup/','/onclick/','/ondblclick/','/onmousedown/','/onmousemove/','/onmouseout/','/onmouseover/','/onmouseup/','/onunload/');
    if (is_array($arr)){
        foreach ($arr as $key => $value){
            if(!is_array($value)){
                if (!get_magic_quotes_gpc()){             //不对magic_quotes_gpc转义过的字符使用addslashes(),避免双重转义。
                    $value=addslashes($value);           //给单引号(')、双引号(")、反斜线()与 NUL(NULL 字符)加上反斜线转义
                }
                $value=preg_replace($ra,'',$value);     //删除非打印字符,粗暴式过滤xss可疑字符串
                $arr[$key]     = htmlentities(strip_tags($value)); //去除 HTML 和 PHP 标记并转换为 HTML 实体
            }else{
                SafeFilter($arr[$key]);
            }
        }
    }
}
最后修改:2022 年 01 月 05 日 11 : 21 PM
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