11-28-2007, 07:25 PM
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#7 (permalink)
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The Prestige
Join Date: Oct 2007
Location: Manchester, UK
Posts: 854
Thanks: 32
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Right, i just very quickly coded this little test script.
It runs 20 times, then takes the average of 20 iterations.
PHP Code:
<?php
$iterations = 20;
$result = 0;
for($i = 0; $i < $iterations; $i++)
{
$test = runTest();
echo '<b>Iteration '.($i + 1).'</b>: '.$test.'<br />';
$result += $test;
}
$average = ($result / $iterations);
echo '<br /><b>Average of '.$iterations.'</b> iterations is '.$average.'<br /> <b>Rounded to 3dp</b> '.round($average, 3);
function runTest()
{
$string = 'talkphp.com';
$loop = 30000;
$i = 0;
$time_start = microtime(true);
//Do While
/* do
{
md5($string);
//sha1($string);
$i++;
}
while ($i < $loop);*/
//While
/*while($i < $loop)
{
md5($string);
//sha1($string);
}*/
//For
/*for ($i = 0; $i < $loop; $i++)
{
md5($string);
//sha1($string);
}*/
$time_end = microtime(true);
$time = ($time_end - $time_start);
return $time;
}
Still seems to show that MD5 is quicker than SHA-1.
just uncomment the type of test u want to run i.e for loop etc.
note because i am running PHP5 i can call microtime(true) because they changed it in php5, in php4 you need something like so:
PHP Code:
function microtime_float()
{
list($usec, $sec) = explode(" ", microtime());
return ((float)$usec + (float)$sec);
}
$time_start = microtime_float();
$time_end = microtime_float();
__________________
mysql> SELECT * FROM `users` WHERE `users`.`clue` > 0;
Empty set (0.00 sec)
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