帮忙将这段代码改成PHP下

Question

$server_v1=$_SERVER['HTTP_REFERER'];
$server_v2=$_SERVER['SERVER_NAME'];
echo $server_v1."<br/>".$server_v2."<br/>".substr($server_v1,7,strlen($server_v2));
if (substr($server_v1,7,strlen($server_v2))!=$server_v2){
echo "你提交的路径有误，禁止从站点外部提交数据!" ;
die();
}

Answer 1

$server_v1=$_SERVER['HTTP_REFERER'];
$server_v2=$_SERVER['SERVER_NAME'];
//上面发的这句不需要了  :-)
if (substr($server_v1,7,strlen($server_v2))!=$server_v2){
    echo "你提交的路径有误，禁止从站点外部提交数据!" ;
    die();
}