PHP JSON返回\ u0000

Question

When I try to get data from the database via Ajax, PHP returns this:

{"readyState":4,"responseText":"\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000array(4) {
  [\"USR_ID\"]=>
  string(1) \"1\"
  [\"PLT_ID\"]=>
  string(1) \"1\"
  [\"NRS.ID\"]=>
  string(1) \"1\"
  [\"url\"]=>
  string(59) \"http://remcocr9.nine.axc.nl/tones/music/ontopoftheworld.mp3\"
}
","status":200,"statusText":"OK"}

This is my PHP code:

<?php    
    class Playlist
    {
        public function getPlaylists( $link, $song, $usrid )
        {
            $playlists = $link->query( "SELECT * FROM TO_PLT WHERE USR_ID = " . $usrid . ";" );
            if( $playlists->num_rows ) // 1 or more playlists were found
            {
                while( $playlist = $playlists->fetch_assoc( ) )
                {
                    // echo an opening DIV containing the playlist name etc via json

                    $data = $song->getSong( $link, $playlist[ "PLT_ID" ], $usrid);

//                    echo json_encode($data);
                    var_dump($data);
//                    echo json_encode($playlist); // Return playlist data
                    // echo a closing DIV tag via JSON so the playlist DIV is closed
                }
            }
            else
            {
                // no playlists were found
            }
        }
    }
?>                               

And here is the javascript/ajax code that I use to get the data:

function ajaxRequest() {
$.ajax({
    type: "GET",
    url: hostURL + "users.php",
    dataType: 'json'
}).done(function (data) {
    console.log(JSON.stringify(data));
}).fail(function (data) {
    console.log(JSON.stringify(data));
});
}

The function is called by the Ajax function, how do I get rid of the \u0000? or is there another error in my code which is causing this?

Answer 1

PHPStorm killed my code, it added a ton of NULL text after the end of my code, this was not viewable in PHPStorm, but when I opened the file in Sublime text editor it showed me the NULL text/tags..