Speed optimization-PHP program execution efficiency issues

One of the methods in my controller has a long piece of code logic, and I won't post the specific code. Mainly want to ask you a little, how can I know how much time I use this method each time, execution speed how!

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One of the methods in my controller has a long piece of code logic, and I won't post the specific code. Mainly want to ask you a little, how can I know how much time I use this method each time, execution speed how!

Thank you for inviting me. In fact, it is very simple, you only need to be in this method of the entrance and end of the output two time, with the end time minus the start time to get the program execution time! Yes, No. Of course, to pay special attention to the use of microseconds in order to better compare the OH. phpSubtle Reference Microtime

You can use this method at the beginning and end of the place to use, the difference can be

function microtime_float(){    list($usec, $sec) = explode(" ", microtime());    return ((float)$usec + (float)$sec);}

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