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PHP develops message emoticons and stickers for real-time chat system support

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Release： 2023-08-26 15:48:02

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PHP develops message emoticons and stickers for real-time chat system support

PHP develops message emoticons and sticker support for real-time chat system

With the development of the Internet and the popularity of smartphones, real-time chat has become a part of people’s daily life An important part of. In real-time chat systems, support for message emoticons and stickers has gradually become one of the needs of users. This article will introduce how to use PHP to develop a real-time chat system and add support for message emoticons and stickers.

Create database table

First, we need to create a database table to store chat message information, including message content, sender, receiver, time, etc. You can use the following SQL statement to create a table:

CREATE TABLE messages (
  id INT AUTO_INCREMENT PRIMARY KEY,
  sender VARCHAR(50) NOT NULL,
  receiver VARCHAR(50) NOT NULL,
  content VARCHAR(255) NOT NULL,
  timestamp TIMESTAMP DEFAULT CURRENT_TIMESTAMP
);

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Build the front-end interface

In the front-end interface, we need to display the content of the chat message and allow users to send messages , emoticons and stickers. Interfaces can be built using HTML, CSS and JavaScript. The following is a simple example:

<!DOCTYPE html>
<html>
<head>
  <title>实时聊天系统</title>
  <style>
    /* 添加样式 */
  </style>
</head>
<body>
  <div id="chatbox">
    <!-- 显示聊天消息 -->
  </div>
  <input type="text" id="messageInput" placeholder="输入消息">
  <button onclick="sendMessage()">发送</button>
  <button onclick="showEmojis()">添加表情</button>
  <button onclick="showStickers()">添加贴图</button>
  
  <div id="emojis" style="display: none;">
    <!-- 显示表情 -->
  </div>
  <div id="stickers" style="display: none;">
    <!-- 显示贴图 -->
  </div>

  <script>
    // 添加JavaScript代码
  </script>
</body>
</html>

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Processing the logic of sending messages

In PHP, we need to write corresponding code to process the logic of users sending messages. First, we need to receive the message content and sender information passed by the front end and insert it into the database. The following is a sample code:

<?php
// 连接数据库
$servername = "localhost";
$username = "root";
$password = "";
$dbName = "chat";

$conn = new mysqli($servername, $username, $password, $dbName);

if ($conn->connect_error) {
  die("数据库连接失败：" . $conn->connect_error);
}

// 处理发送消息的逻辑
if ($_SERVER["REQUEST_METHOD"] == "POST") {
  $sender = $_POST["sender"];
  $receiver = $_POST["receiver"];
  $content = $_POST["content"];

  $sql = "INSERT INTO messages (sender, receiver, content) VALUES ('$sender', '$receiver', '$content')";

  if ($conn->query($sql) === TRUE) {
    echo "消息发送成功";
  } else {
    echo "消息发送失败：" . $conn->error;
  }
}

$conn->close();
?>

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Implementing support for emoticons and stickers

In order to support emoticons and stickers in messages, we can introduce corresponding emoticon packages and sticker libraries , and displayed in the front-end interface. When the user selects an expression or sticker, it can be converted into the corresponding text form and sent to the backend for storage. The following is a sample code:

<!-- 显示表情 -->
<div id="emojis" style="display: none;">
  <?php
    // 显示表情
  ?>
</div>
<!-- 显示贴图 -->
<div id="stickers" style="display: none;">
  <?php
    // 显示贴图
  ?>
</div>

<script>
// 添加表情的逻辑
function addEmoji(emoji) {
  var messageInput = document.getElementById("messageInput");
  messageInput.value += emoji;
}

// 添加贴图的逻辑
function addSticker(sticker) {
  var messageInput = document.getElementById("messageInput");
  messageInput.value += sticker;
}
</script>

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Through the above steps, we can use PHP to develop a real-time chat system with message emoticons and sticker support. Users can send messages containing emoticons and stickers and display them in the front-end interface. At the same time, we can also save these messages in the backend and query and display them when needed.

Of course, this is just a simple example. In the actual development process, security, performance optimization, and the implementation of more functions also need to be considered. I hope this article can provide some reference and help to developers who are developing real-time chat systems.

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