On Wed, Feb 27, 2008 at 1:49 AM, Olav Mørkrid <olav.morkrid@xxxxxxxxx> wrote: > hello > > is crc32() an acceptable way of managing whether a JPEG file exists > (in a database or similar collection)? Not really. It won't always properly compare the binary data, and it's also slower than MD5, SHA1, and the like. Not only that, but you can use an MD5 check right in your SQL query (at least with MySQL) rather than needing to pass to the PHP script and back. -- </Dan> Daniel P. Brown Senior Unix Geek <? while(1) { $me = $mind--; sleep(86400); } ?> -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php