note 41541 added to function.crc32

Note that the CRC32 algorithm should NOT be used for cryptographic purposes, or in situations where a hostile/untrusted user is involved, as it is far too easy to generate a hash collision for CRC32 (two different binary strings that have the same CRC32 hash). Instead consider SHA-1 or MD5. ---- Manual Page -- http://www.php.net/manual/en/function.crc32.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+41541 Delete -- http://master.php.net/manage/user-notes.php?action=delete+41541&report=yes Reject -- http://master.php.net/manage/user-notes.php?action=reject+41541&report=yes Search -- http://master.php.net/manage/user-notes.php