At 11:20 AM -0500 2/7/07, Aaron Fischer wrote:
How would one test something like this? Testing for performance is
something I would like to start doing but I don't know where/how to
start.
-Aaron
-Aaron:
Ahhh, now that's a different critter.
First, your question deals with time, so a timer is in order. I use this:
<?php
$starttime = microtime();
$startarray = explode(" ", $starttime);
$starttime = $startarray[1] + $startarray[0];
?>
Then, I place here what I want to test, such as a loop to test your
first snippet:
<?php
$content = "this is the start of a bunch of lines";
$content .= "another line";
$content .= "yet another";
for ($i = 1; $i <= 1000; $i++)
{
echo $content;
}
?>
Then I finish the timing with:
<?php
$endtime = microtime();
$endarray = explode(" ", $endtime);
$endtime = $endarray[1] + $endarray[0];
$totaltime = $endtime - $starttime;
$totaltime = round($totaltime,5);
echo "<br/><br/><br/>This test took $totaltime seconds.";
?>
That will tell me how much time your first snippets took to run 1000
times. Now, do the same with the second one and find out for yourself
if there is any difference between the two. I suspect if there is any
difference, it will be in your second set of code because it calls
echo() more and thus takes more time to execute. In addition, I also
suspect that you will have to increase the iterations to something
greater than 1000 to see any noticeable difference in either, but
that's a guess.
Have fun testing.
Cheers,
tedd
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