note 71518 added to function.isset
| From: | roberto at spadim dot com dot br | Date: | Mon, 04 Dec 2006 06:04:07 +0000 |
| Subject: | note 71518 added to function.isset | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-120259@lists.php.net to get a copy of this message | ||
test:
<?php
$qnt=100000;
$k=array();
for ($i=0;$i<$qnt;$i++)
$k[$i]=1;
echo microtime()."\n";
for ($i=0;$i<$qnt;$i++)if(isset($k[$i]));
echo microtime()."\n";
for ($i=0;$i<$qnt;$i++)if(array_key_exists($i,$k));
echo microtime()."\n";
for ($i=0;$i<$qnt;$i++)if($k[$i]==1);
echo microtime()."\n";
?>
the interesting result:
isset is the fastest
----
Server IP: 66.163.161.117
Probable Submitter: 200.206.160.28
----
Manual Page -- http://www.php.net/manual/en/function.isset.php
Edit -- https://master.php.net/note/edit/71518
Del: integrated -- https://master.php.net/note/delete/71518/integrated
Del: useless -- https://master.php.net/note/delete/71518/useless
Del: bad code -- https://master.php.net/note/delete/71518/bad+code
Del: spam -- https://master.php.net/note/delete/71518/spam
Del: non-english -- https://master.php.net/note/delete/71518/non-english
Del: in docs -- https://master.php.net/note/delete/71518/in+docs
Del: other reasons-- https://master.php.net/note/delete/71518
Reject -- https://master.php.net/note/reject/71518
Search -- https://master.php.net/manage/user-notes.php