TalkPHP - what is the purpose of microtime() ?

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sarmenhb

11-09-2008 02:21 AM

what is the purpose of microtime() ?

i was looking at the php help page and found this script below, apparently its supposed to be a timer.. but i did a echo of microtime and found a bunch of gibberish float values. whats its purpose?? thanks

Code:



<?php

$time_start = microtime(true);



// Sleep for a while

usleep(100);



$time_end = microtime(true);

$time = $time_end - $time_start;



echo "Did nothing in $time seconds\n";

?>

martins256

11-09-2008 08:59 AM

You can use it for benchmarking. Do something like this:

Code:

<?php

//put this at the top of your script

$time_start = microtime(true);



// here should be all your php stuff

usleep(100);





//finally get the time php needed to execute everything.

$time_end = microtime(true);

$time = $time_end - $time_start;



echo "Did nothing in $time seconds\n";

?>

If you want something better for benchmarking try xdebug.

ReSpawN

11-09-2008 03:03 PM

I always make my own microtime generator to generate total query time, clear time, fetch time, function times, load times, execution times ect. ;-)

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