note 84161 added to function.is-null
| From: | Malfist at osu1 dot php dot net | Date: | Tue, 01 Jul 2008 14:54:06 +0000 |
| Subject: | note 84161 added to function.is-null | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-141039@lists.php.net to get a copy of this message | ||
Micro optimization isn't worth it.
You had to do it ten million times to notice a difference, a little more than 2 seconds
$a===NULL; Took: 1.2424390316s
is_null($a); Took: 3.70693397522s
difference = 2.46449494362
difference/10,000,000 = 0.000000246449494362
The execution time difference between ===NULL and is_null is less than 250 nanoseconds. Go optimize
something that matters.
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Manual Page -- http://www.php.net/manual/en/function.is-null.php
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