note 79141 added to function.mt-rand
| From: | fabiovhongmail at osu1 dot php dot net | Date: | Tue, 13 Nov 2007 14:42:35 +0000 |
| Subject: | note 79141 added to function.mt-rand | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-132226@lists.php.net to get a copy of this message | ||
performance: for a repetitive task, it's much faster not to use the limit parameters, as shown
below. just use the % operator.
$t=microtime(true);
for($i=0;$i<1000000;$i++)
mt_rand()%3;
echo microtime(true)-$t;
echo '|';
$t=microtime(true);
for($i=0;$i<1000000;$i++)
mt_rand(0,2);
echo microtime(true)-$t;
echo '|';
$t=microtime(true);
for($i=0;$i<1000000;$i++)
mt_rand();
echo microtime(true)-$t;
output: 0.316797971725|0.442242145538|0.253082036972
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Probable Submitter: 130.60.155.213
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Manual Page -- http://www.php.net/manual/en/function.mt-rand.php
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