timer_start() │ WP 0.71

Starts the timer for the beginning of the WordPress loading.

Technically, the function sets the global variable $timestart, which records the timestamp (with microseconds) from which the loading of the WordPress core began.

global $timestart;
$timestart = microtime( true );

The function is called at the beginning of the WordPress core loading, after the critically necessary components for the core loading have been set. See wp-settings.php.

This function is the basis for the timer_stop(), which gets the time difference from the moment this function was called. This is needed to measure the execution time of WordPress up to a certain point in the code.

This function should never be called manually!

Calling this function again resets the global variable $timestart.

See timer_float() — a newer version of time measurement introduced in WP 5.8.

Internal function — this function is designed to be used by the kernel itself. It is not recommended to use this function in your code.

1 time — 0.000015 sec (very fast) | 50000 times — 0.02 sec (speed of light)

No Hooks.

Returns

true|false. Always returns true.

Usage

timer_start();

Examples

0

#1 It's internal function

This function is called by WP itself and it makes no sense to show an example of how it works.

See examples of timer_stop(), which works in conjunction with this function.

Notes

  • Global. float. $timestart Unix timestamp set at the beginning of the page load.
  • See: timer_stop()

Changelog

Since 0.71 Introduced.

timer_start() code WP 6.8.3

wp-includes/load.php 
function timer_start() {
	global $timestart;

	$timestart = microtime( true );

	return true;
}

timer_ (generation time)