mysql_thread_id

Function name: mysql_thread_id()

Function description: the mysql_thread_id() function returns the thread identifier of the current connection.

Applicable version: PHP 5.2.0 and above

Syntax: mysql_thread_id(connection)

parameter:

• connection (required): A valid MySQL connection identifier.

Return value:

• When successful, the function returns the thread identifier of the current connection.
• When it fails, return FALSE.

Example:

 // 创建MySQL 连接$connection = mysql_connect("localhost", "username", "password"); if ($connection) { // 获取当前连接的线程标识符$thread_id = mysql_thread_id($connection); echo "当前连接的线程标识符为：".$thread_id; // 关闭MySQL 连接mysql_close($connection); } else { echo "无法连接到MySQL: " . mysql_error(); }

Notes:

• This function can only be called after successful connection using the mysql_connect() or mysql_pconnect() function.
• In PHP 5.5.0 and above, the mysql_* function is no longer recommended, and it is recommended to use the MySQLi or PDO extension to operate the MySQL database.