sql通用防注入系统

作者：袖梨 2022-06-24

//防注入

代码如下

复制代码

$arrfiltrate=array("update","delete","selert","drop","exec","cast","'","union");
//出错后要跳转的url,不填则默认前一页
$strgourl="";
//是否存在数组中的值
function funstringexist($strfiltrate,$arrfiltrate){
foreach ($arrfiltrate as $key=>$value){
if (eregi($value,$strfiltrate)){
return true;
}
}
return false;
}
//合并$_post 和 $_get
if(function_exists(array_merge)){
$arrpostandget=array_merge($http_post_vars,$http_get_vars);
}else{
foreach($http_post_vars as $key=>$value){
$arrpostandget[]=$value;
}
foreach($http_get_vars as $key=>$value){
$arrpostandget[]=$value;
}
}
//验证开始
foreach($arrpostandget as $key=>$value){
if (funstringexist($value,$arrfiltrate)){
echo " ";
if (empty($strgourl)){
echo " ";
}else{
echo " ";
}
echo "";
exit();
}
}
?>