如何上传音频（mp3歌曲）？

Question

1. 请帮我上传音频文件的PHP / HTML代码。通过许多代码上传图像，但在音频的情况下失败。
2. 我通过一些博客来达到下面给出的特定代码，仅用于上传较小尺寸的文件。（在大小约为3mb的mp3的情况下失败）。

代码：

<form name="audio_form" id="audio_form" action="" method="post" enctype="multipart/form-data">
<fieldset>
<label>Audio File:</label>
<input name="audio_file" id="audio_file" type="file"/>
<input type="submit" name="Submit" id="Submit" value="Submit"/>
</fieldset>
</form>
<?php

if(isset($_POST['Submit']))
{
$file_name = $_FILES['audio_file']['name'];

if($_FILES['audio_file']['type']=='audio/mpeg' || $_FILES['audio_file']['type']=='audio/mpeg3' || $_FILES['audio_file']['type']=='audio/x-mpeg3' || $_FILES['audio_file']['type']=='audio/mp3' || $_FILES['audio_file']['type']=='audio/x-wav' || $_FILES['audio_file']['type']=='audio/wav')
{ 
 $new_file_name=$_FILES['audio_file']['name'];

 // Where the file is going to be placed
 $target_path = "audios/".$new_file_name;

 //target path where u want to store file.

 //following function will move uploaded file to audios folder. 
if(move_uploaded_file($_FILES['audio_file']['tmp_name'], $target_path)) {
echo "hello";
 //insert query if u want to insert file
}
}
}
?>