note 25076 added to function.getmypid

Something you can use to combine several weak entropy sources, into a better init value for srand() and mt_srand(): mt_srand(time() ^ (int)microtime() ^ ip2long($_SERVER['REMOTE_ADDR']) ^ (int)$_SERVER['REMOTE_PORT'] ^ @getmypid() ^ @disk_free_space('/tmp') ); Note that getmypid() may return 0 on some shared PHP installations that have excluded it for "safe"... The safe mode also exclude the disk_free_space(directory) function call in some cases, for security reason. This explains the use of the @ operator to ignore warnings... the directory should be a highly active directory, which is accessible and typically used for temporary contents generated by PHP. The above code combines all these sources using XOR binary operations, to avoid 32-bit overflows. -- http://www.php.net/manual/en/function.getmypid.php http://master.php.net/manage/user-notes.php?action=edit+25076 http://master.php.net/manage/user-notes.php?action=delete+25076 http://master.php.net/manage/user-notes.php?action=reject+25076