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How to implement a simple music player using PHP

PHPzOriginal: 2023-09-26 14:36:21888browse

How to use PHP to implement a simple music player

Introduction:
Music player is a common web application that can play and manage audio file. In this article, we will learn how to implement a simple music player using PHP language and some open source libraries. Through the study of this article, readers will learn how to process audio files, create a simple player interface, and how to implement audio playback and control.

Preparation
Before we start, we need to prepare some basic resources.

PHP environment: Make sure you have PHP installed and can run PHP programs locally.
Audio files: Prepare some audio files, which can be in MP3 format or other common formats.
Open source library: We will use an open source library called jPlayer, which is a powerful, flexible and compatible HTML5 audio player. You can download the latest version from the jPlayer official website.

Create a basic HTML structure
Before using jPlayer, we need to create a basic HTML structure for the player. Here is a simple example:

<!DOCTYPE html>
<html>
<head>
  <meta charset="UTF-8">
  <title>音乐播放器</title>
</head>
<body>
  <audio id="myAudio" src=""></audio>
  <button onclick="play()">播放</button>
  <button onclick="pause()">暂停</button>
  <button onclick="stop()">停止</button>
</body>
</html>

In the above example, we have created an audio element for playing audio files. We also added a few buttons to control the player's play, pause, and stop functionality.

Introducing jPlayer library
Next step, we need to introduce jPlayer library into our project. After downloading or obtaining the code for jPlayer, unzip it and copy the required files into your project directory.

Then, introduce jPlayer’s CSS and JS files into our HTML page. Add the following code to the

tag:

<link rel="stylesheet" type="text/css" href="path/to/jplayer.css">
<script type="text/javascript" src="path/to/jplayer.js"></script>

Make sure you have path/to/jplayer.css and path/to/jplayer.js## set correctly #path of.

In the player, we need to handle the uploading, adding and deleting of audio files. Here we will use a simple upload form to upload audio files.

<form action="upload.php" method="POST" enctype="multipart/form-data">
  <input type="file" name="file">
  <input type="submit" value="上传">
</form>

In the above form, a file input box and a submit button are created. When the user selects an audio file and submits the form, the uploaded file information will be sent to the

upload.php script for processing.

Now, we need to create an

upload.php script to handle the uploaded audio files. Here is a simple example:

<?php
  if(isset($_FILES['file'])){
    $file = $_FILES['file'];
    $targetDir = "uploads/";
    $targetFile = $targetDir . basename($file['name']);
    move_uploaded_file($file['tmp_name'], $targetFile);
  }
?>

In the above example, we first check if the file has been uploaded. We then move the temporary path of the uploaded file to the specified destination path.

Next, we need to use PHP to implement audio file playback and control. Here is a simple example:

<?php
  $audioFiles = glob("uploads/*.mp3");
  if(isset($_GET['file'])){
    $selectedFile = $_GET['file'];
    echo '<audio id="myAudio" src="'.$selectedFile.'"></audio>';
  }else{
    $selectedFile = $audioFiles[0];
    echo '<audio id="myAudio" src="'.$selectedFile.'"></audio>';
  }
?>
<!DOCTYPE html>
<html>
<head>
  <meta charset="UTF-8">
  <title>音乐播放器</title>
  <link rel="stylesheet" type="text/css" href="path/to/jplayer.css">
  <script type="text/javascript" src="path/to/jplayer.js"></script>
  <script type="text/javascript">
    function play(){
      $("#myAudio").jPlayer("play");
    }
    function pause(){
      $("#myAudio").jPlayer("pause");
    }
    function stop(){
      $("#myAudio").jPlayer("stop");
    }
  </script>
</head>
<body>
  <div class="playlist">
    <?php foreach($audioFiles as $file): ?>
        <a href="?file=<?php echo $file ?>"><?php echo basename($file) ?></a><br>
    <?php endforeach; ?>
  </div>
  <button onclick="play()">播放</button>
  <button onclick="pause()">暂停</button>
  <button onclick="stop()">停止</button>
</body>
</html>

In the above example, we first get all the uploaded audio files and display them as a playlist. When the user clicks on the link, the path to the selected audio file is passed as a GET parameter.

In the PHP code, we create an audio element to play the corresponding audio file based on the passed file path. Then, we use the API of the jPlayer library to implement the play, pause, and stop functions.

Conclusion:

So far, we have completed the creation of a simple music player. This player can upload audio files, display playlists, and play, pause, and stop audio files.

Of course, this is just a basic example, you can extend and improve it according to your own needs. For example, you can add audio file deletion functions, volume controls, playback progress bars, etc.

I hope this article will be helpful to beginners and let you know how to use PHP to implement a simple music player. If you have any questions, please feel free to leave a message.

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