note 47822 added to function.md5

Correction regarding MD5's security: A method of producing collisions in MD5 and related algorithms has been discovered that is more efficient than brute-force. What this means is that an attacker can produce two strings that hash to the same result in a "reasonable" amount of time. This does NOT mean that an attacker can a) decrypt an MD5 hash or b) find another string that will MD5 to the same value. So MD5 protected passwords cannot be attacked by this method. Note that all hashes have collisions in them-- reducing an infinite set of inputs to a finite set of outputs must have duplicates. ---- Manual Page -- http://www.php.net/manual/en/function.md5.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+47822 Delete -- http://master.php.net/manage/user-notes.php?action=delete+47822&report=yes Reason: bad code -- http://master.php.net/manage/user-notes.php?action=delete+47822&report=yes&reason=bad+code Reason: spam -- http://master.php.net/manage/user-notes.php?action=delete+47822&report=yes&reason=spam Reason: useless example -- http://master.php.net/manage/user-notes.php?action=delete+47822&report=yes&reason=useless+example Reason: contains commercial links -- http://master.php.net/manage/user-notes.php?action=delete+47822&report=yes&reason=contains+commercial+links Reason: useless note -- http://master.php.net/manage/user-notes.php?action=delete+47822&report=yes&reason=useless+note Reject -- http://master.php.net/manage/user-notes.php?action=reject+47822&report=yes Search -- http://master.php.net/manage/user-notes.php