添加数组PHP时遇到问题

我正在学习编程，似乎不知道如何附加以下数组。这里有一个片段

<?php
$dir = "./media/";

if($dh = opendir($dir))
{
    while(false != ($file = readdir($dh)))
    {
        if($file != "." && $file != "..")
        {

        $pathinfo = pathinfo($file);
        $pathinfo = $pathinfo['filename'];


        $mp3 = "http://localhost/media/" . $file;


        $Obj1 = ["title=" => $pathinfo,
                "artist=" => "artist1",
                "mp3=" => $mp3];

        $Obj2 = append($Obj1);
   }
   }

closedir($dh);
}
?>

---

我不明白为什么这样不行。感谢您的帮助。谢谢

你在检查为什么覆盖我的编辑？我不是故意的。我只是注意到我没有包括我不是故意的。我只是注意到我忘记了Ok。我把你错过的最后两行缩进了。所有代码至少需要4个空格才能正确缩进。非常感谢您的帮助！

$dir = "./media/";
// Always initialize your array
$array = array();
if ( $dh = opendir($dir) ) {
    while ( false != ( $file = readdir($dh) ) ) {
        if ( $file != "." && $file != ".." ) {

            $pathinfo = pathinfo($file);
            $pathinfo = $pathinfo['filename'];


            $mp3 = "http://localhost/media/" . $file;

            // Don't do silly things like putting "=" in every key
            $thisArray = array(
                'title' => $pathinfo,
                'artist' => 'artist1',
                'mp3' => $mp3
            );
            $array[] = $thisArray;
            // Or $array += $thisArray;
        }
   }

    closedir($dh);
}