note 112745 added to function.substr
| From: | fengdingbo at gmail dot com | Date: | Fri, 19 Jul 2013 04:23:50 +0000 |
| Subject: | note 112745 added to function.substr | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-195670@lists.php.net to get a copy of this message | ||
<?php
$a = 'abc';
$php = 'ok123';
$str = microtime(TRUE);
for($i=0;$i<=1000000;$i++)
$a = substr($php,1,1);
echo microtime(true)-$str,"\n";
$str = microtime(TRUE);
for($i=0;$i<=1000000;$i++)
$a = $php[1];
echo microtime(true)-$str;
?>
output:
0.26694822311401
0.10447096824646
----
Server IP: 69.147.83.199
Probable Submitter: 116.231.135.155
----
Manual Page -- http://php.net/manual/en/function.substr.php
Edit -- https://master.php.net/note/edit/112745
Del: integrated -- https://master.php.net/note/delete/112745/integrated
Del: useless -- https://master.php.net/note/delete/112745/useless
Del: bad code -- https://master.php.net/note/delete/112745/bad+code
Del: spam -- https://master.php.net/note/delete/112745/spam
Del: non-english -- https://master.php.net/note/delete/112745/non-english
Del: in docs -- https://master.php.net/note/delete/112745/in+docs
Del: other reasons-- https://master.php.net/note/delete/112745
Reject -- https://master.php.net/note/reject/112745
Search -- https://master.php.net/manage/user-notes.php