Heads up! The article doesn’t mean the CPU Execution Time but the clock time and so it can vary when comparing with the “max_execution_time”.
Tracking the PHP script execution time is very important in case you’re dealing with a large number of data. The more execution time, the slower the performance of the system. It’s especially important when querying large data from the database.
Once you created a function, you can measure its time execution while calling it. Let’s see an example of
get_posts() in WordPress because it can contain huge data based on the number of posts you have.
$time_start = microtime(true); $posts = get_posts(); $time_end = microtime(true); $execution_time = $time_end - $time_start; error_log( print_r( 'Execution Time For get_posts(): ' . $execution_time, true ) );
You’ll get execution time in seconds. If you get weird-looking results, format the execution time:
error_log( print_r( 'Execution Time For get_posts(): ' . number_format( (float) $execution_time, 10 ), true ) );
I hope this information is useful!