WordPress at a glance
function is not described

wpdb::timer_start() public WP 1.5.0

Starts the timer, for debugging purposes.

{} It's a method of the class: wpdb{}

No Hooks.

Return

true. Nothing.

Usage

global $wpdb;
$wpdb->timer_start();

Changelog

Since 1.5.0 Introduced.

Code of wpdb::timer_start() WP 5.7.2

<?php
public function timer_start() {
	$this->time_start = microtime( true );
	return true;
}