php用户自定过滤非法sql注入字符串函数

function uc_addslashes($string, $force = 0, $strip = false) {
 !defined('magic_quotes_gpc') && define('magic_quotes_gpc', get_magic_quotes_gpc());
 if(!magic_quotes_gpc || $force) {
  if(is_array($string)) {
   foreach($string as $key => $val) {
    $string[$key] = uc_addslashes($val, $force, $strip);
   }
  } else {
   $string = addslashes($strip ? strips教程lashes($string) : $string);
  }
 }
 return $string;
}

if(!function_exists('daddslashes')) {
 function daddslashes($string, $force = 0) {
  return uc_addslashes($string, $force);
 }
}

//php 过滤函数应用实例111com.net

$get = $_get;
$g = uc_addslashes($get, $force = 0, $strip = false);

//过滤post提交数据

$post =  $_post;
$p = uc_addslashes($post, $force = 0, $strip = false);