Rendered in. . .

[Anon]

Can php be used to display how long it took for a page to load in a client's browser? I was just curious as to how sites have pages that read "this page was rendered in 6.44030 seconds" Is this php? And if it is, how is it done? Thanks for your help

[terje-s]

Hmm.. I'm unsure how you would do this, I think the solution would be javascript. You can find out the execution time of the script itself, but I doubt you can easily determine the amount of time used to transmit it to the browser. Check a page that has this for javascript.

Execution time of script (server-side):

<?php
$startTime = time();

// 5031 lines of code

$scriptTime = time() - $startTime;

print "Script execution took $scriptTime seconds.";
?>

[[deleted]]

time() is only in seconds, microtime() includes milliseconds.

http://www.phpbuilder.com/snippet/detail.php?type=snippet&id=116

[Anon]

PHP can only tell how long it took the server to generate the HTML output. It cannot tell how long it took the data to travel across the 'Net and be displayed on the user's screen.

[devarticles]

heres a little script that i use for testing my sites, its a great way to optimise my code.

<?php

$start = microtime();

?>
data in here
<?php
echo '<br><br>';

$end = microtime();

$time = (float)$end - (float)$start;

if($time <= 0.001)
echo "Damm fast!";

elseif($time > 0.001 && $time < 0.05)
echo "Nice";

elseif($time >= 0.05)
echo "Slow, your code needs fixing";

?>
<br><b>Loaded in <?php echo $time; ?> Seconds</b>

if you want to test it out, replace

?>
data in here
<?php

with

for($i = 0; $i <= 1000; $i++) //just some data to take up some time
	{

	echo $i . '<br>';

} 

[devarticles]

oh, i forgot to mention, that if the $time var is too long, try using the round function, to round down the length of the string.

$time = round($time, 4);