php代理

<?php
header('Access-Control-Allow-Origin:*');
$url=$_POST['urlString'];
$res = file_get_contents($url);
echo $res;
?>

            $.post(
                "http://xzqyun.top/interface/searchmusicheader.php",
                {
                    urlString:'网址'
                },
                function(result){
                    console.log(result);
                }
            );