Php post方法无法从url获取数据

I have an URL which is to be used for getting post data after pasting and pressing enter in the browser. My link is : http://vtrails.us/mixtape-builder/?song_urls=http://vtrails.us/wp-content/uploads/2015/12/mpthreetest.mp3&song_artist=ganja

<?php                       
    if(isset($_POST['song_urls']) && !empty($_POST['song_urls'])){
        $song_url = $_POST['song_urls'];
        $song_artist = $_POST['song_artist'];
    }
    echo $song_url;
    echo $song_artist;
?>

But i am not getting any of them.So what can i do now?

If you use $_GET instead of $_POST you will get desired result:

Here is the code

<?php                       
   if(isset($_POST['song_urls']) && !empty($_POST['song_urls'])){
        $song_url = $_POST['song_urls'];
        $song_artist = $_POST['song_artist'];
   }
   echo $song_url;
   echo $song_artist;
?>

Its $_GET, not $_POST. Do this:

<?php                       
    if(isset($_GET['song_urls']) && !empty($_GET['song_urls'])){
        $song_url = $_GET['song_urls'];
        $song_artist = $_GET['song_artist'];
    }
    echo $song_url;
    echo $song_artist;
?>