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<?php //要过滤的非法字符 $ArrFiltrate=array(”‘”,”;”,”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; //开源代码phpfensi.com } } 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 “<script language=”javascript教程”>alert(”非法字符”);</script>”; if (emptyempty($StrGoUrl)){ echo “<script language=”javascript”>history.go(-1);</script>”; }else{ echo “<script language=”javascript”>window.location=””.$StrGoUrl.””;</script>”; } exit; } } ?>