page load reponse time

nuttynibbles

hi i require to get the response time for each page. i did the following (found this e.g. on here:

function microtimediff($start,$end=NULL ) {
if(!$end ) {
$end= microtime();
}
//list($start_usec, $start_sec) = explode(" ", $start);
list($end_usec, $end_sec) = explode(" ", $end);
$diff_sec= intval($end_sec) - intval($start_sec);
$diff_usec= floatval($end_usec) - floatval($start_usec);
return floatval( $diff_sec ) + $diff_usec;
}

the results im getting is similar to 1156127104.746352 Seconds

why is the value so huge??

halojoy

Better to use this for PHP 5

<?php
$time_start = microtime(true);

// The script
// do something


$time_end = microtime(true);
$time = $time_end - $time_start;

echo "TIME: $time seconds\n";
?>

Ashley_Sheridan

microtime gives microseconds not seconds, so any math you perform on microtime values will give a microseconds value. Remember that there are 1000 microseconds to a second!

dagon

Ashley Sheridan;10941648 wrote:
microtime gives microseconds not seconds, so any math you perform on microtime values will give a microseconds value. Remember that there are 1000 microseconds to a second!

but halojoy's example uses the optional get_as_float set as true so the response is a float in seconds

NogDog

Ashley Sheridan;10941648 wrote:
microtime gives microseconds not seconds, so any math you perform on microtime values will give a microseconds value. Remember that there are 1000 microseconds to a second!

Point of order: micro == millionth, not thousandth (which would be milli). 🙂