Php implementation class instance for calculating execution time

This article mainly introduces the php implementation class used for computing execution time. The example analyzes the class instances and related usage skills of php computing operation implementation, which is very useful. For more information, see

This article mainly introduces the php implementation class used for computing execution time. The example analyzes the class instances and related usage skills of php computing operation implementation, which is very useful. For more information, see

This example describes the php implementation class used to calculate the execution time. Share it with you for your reference. The details are as follows:

With this php class, it is easy to execute a function or a piece of code.

<? Phpclass c_Timer {var $ t_start = 0; var $ t_stop = 0; var $ t_elapsed = 0; function start () {$ this-> t_start = microtime ();} function stop () {$ this-> t_stop = microtime ();} function elapsed () {if ($ this-> t_elapsed) {return $ this-> t_elapsed ;} else {$ start_u = substr ($ this-> t_start, 0,10); $ start_s = substr ($ this-> t_start, 11, 10 ); $ stop_u = substr ($ this-> t_stop, 0, 10); $ stop_s = substr ($ this-> t_stop, 11, 10); $ start_t Otal = doubleval ($ start_u) + $ start_s; $ stop_total = doubleval ($ stop_u) + $ stop_s; $ this-> t_elapsed = $ stop_total-$ start_total; return $ this-> t_elapsed ;}};?>

Example:

<? Php $ timer = new c_Timer; $ timer-> start (); echo ""; $ timer-> stop (); echo $ timer-> elapsed ();?>

I hope this article will help you with php programming.