note 76078 added to function.md5

Here is a far more accurate test if you are not going to be doing it over and over. <?php $time=microtime(1); hash('md5', 'string'); echo (microtime(1)-$time)*10000,': hash/md5<br>'; $time=microtime(1); md5('string'); echo (microtime(1)-$time)*10000,': md5<br>'; $time=microtime(1); hash('sha1', 'string'); echo (microtime(1)-$time)*10000,': hash/sha1<br>'; $time=microtime(1); sha1('string'); echo (microtime(1)-$time)*10000,': sha1<br>'; ?> Outputs 0.11920928955078: hash/md5 0.090599060058594: md5 0.14066696166992: hash/sha1 0.050067901611328: sha1 Refresh it a few times and you will see that it is indeed consistant. sha1 is faster if you are not going to be using it over and over. I'm using this for etags in PHP and only need to use it once, so for me sha1 is faster. Note that these times are all times by 10000 so that it shows up as a real number instead of something like 1.1920928955078E-5: hash/md5 8.1062316894531E-6: md5 1.4066696166992E-5: hash/sha1 5.9604644775391E-6: sha1 (to negative powers) ---- Server IP: 208.69.120.35 Probable Submitter: 67.53.37.218 ---- Manual Page -- http://www.php.net/manual/en/function.md5.php Edit -- https://master.php.net/note/edit/76078 Del: integrated -- https://master.php.net/note/delete/76078/integrated Del: useless -- https://master.php.net/note/delete/76078/useless Del: bad code -- https://master.php.net/note/delete/76078/bad+code Del: spam -- https://master.php.net/note/delete/76078/spam Del: non-english -- https://master.php.net/note/delete/76078/non-english Del: in docs -- https://master.php.net/note/delete/76078/in+docs Del: other reasons-- https://master.php.net/note/delete/76078 Reject -- https://master.php.net/note/reject/76078 Search -- https://master.php.net/manage/user-notes.php