note 75741 added to function.md5
| From: | prodigysim at osu1 dot php dot net | Date: | Wed, 13 Jun 2007 21:35:57 +0000 |
| Subject: | note 75741 added to function.md5 | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-127462@lists.php.net to get a copy of this message | ||
I ran a small speed test of my own based on comments by sebastian dot haller at freesurf dot ch and
tszming at gmail dot com.
bin2hex(md5('string', true)) performs faster than md5('string').
However, this binary speed boost does not apply for the hash() function.
<?php
$time=microtime(1);
for ($i=0;$i<100000;$i++)
hash('md5', 'string');
echo microtime(1)-$time,': hash/md5<br>';
$time=microtime(1);
for ($i=0;$i<100000;$i++)
md5('string');
echo microtime(1)-$time,': md5<br>';
$time=microtime(1);
for ($i=0;$i<100000;$i++)
bin2hex(hash('md5', 'string', TRUE));
echo microtime(1)-$time,': bin/hash/md5<br>';
$time=microtime(1);
for ($i=0;$i<100000;$i++)
bin2hex(md5('string', TRUE));
echo microtime(1)-$time,': bin/md5<br>';
?>
Returns:
0.392316102982: hash/md5
0.725342035294: md5
0.421605110168: bin/hash/md5
0.483132839203: bin/md5
----
Server IP: 64.71.164.2
Probable Submitter: 207.90.212.178
----
Manual Page -- http://www.php.net/manual/en/function.md5.php
Edit -- https://master.php.net/note/edit/75741
Del: integrated -- https://master.php.net/note/delete/75741/integrated
Del: useless -- https://master.php.net/note/delete/75741/useless
Del: bad code -- https://master.php.net/note/delete/75741/bad+code
Del: spam -- https://master.php.net/note/delete/75741/spam
Del: non-english -- https://master.php.net/note/delete/75741/non-english
Del: in docs -- https://master.php.net/note/delete/75741/in+docs
Del: other reasons-- https://master.php.net/note/delete/75741
Reject -- https://master.php.net/note/reject/75741
Search -- https://master.php.net/manage/user-notes.php