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Last updated: Tue, 19 Sep 2006


(PHP 4 >= 4.3.0, PHP 5)

mysql_thread_id -- Return the current thread ID


int mysql_thread_id ( [resource link_identifier] )

Retrieves the current thread ID. If the connection is lost, and a reconnect with mysql_ping() is executed, the thread ID will change. This means only retrieve the thread ID when needed.



The MySQL connection. If the link identifier is not specified, the last link opened by mysql_connect() is assumed. If no such link is found, it will try to create one as if mysql_connect() was called with no arguments. If by chance no connection is found or established, an E_WARNING level warning is generated.

Return Values

The thread ID on success, or FALSE on failure.


Example 1. mysql_thread_id() example

$link = mysql_connect('localhost', 'mysql_user', 'mysql_password');
$thread_id = mysql_thread_id($link);
if ($thread_id){
    printf("current thread id is %d\n", $thread_id);

The above example will output something similar to:

current thread id is 73

Last updated: Tue, 19 Sep 2006