session_abort

Function name: session_abort()

Function description: The session_abort() function is used to terminate the current session and discard all data in the session.

Applicable version: PHP 4 >= 4.0.4, PHP 5, PHP 7

Usage: session_abort(): void

Example:

 <?php // 开启会话session_start(); // 存储会话数据$_SESSION['username'] = 'John'; // 终止会话并丢弃数据session_abort(); // 输出会话数据（无效，因为会话已经终止） echo $_SESSION['username']; // 不会输出任何内容// 清除会话数据session_unset(); session_destroy(); ?>

illustrate:

1. First, use the session_start() function to start the session.
2. Use $_SESSION['username'] to store session data.
3. Call session_abort() function to terminate the current session and discard all data in the session.
4. After the session terminates, trying to access $_SESSION['username'] will not output anything.
5. Finally, use the session_unset() and session_destroy() functions to clear the session data.

Notes:

• The session_abort() function only terminates the current session and will not affect other sessions.
• After calling the session_abort() function, the session data will no longer be accessed, including the already stored session variables.
• If you need to terminate all sessions and destroy session data, you can use the session_reset() function.
• After using the session_abort() function, it is recommended to use the session_unset() and session_destroy() functions to completely clear the session data.