note 54679 added to function.ip2long

Note: ip2long and long2ip do not function as the c linux functions inet_addr and inet_ntoa. They store the long in reverse byte order (little endian vs big endian i guess). For example you send 10.0.0.1 to inet_ntoa you take the long from the result and you pass it to long2ip you get 1.0.0.10. You won't run into this issue unless you use a database both from c linux programs and php scripts. My first ideea was to reverse the long, but unfortunatley the long was stored as unsigned and i got a lot of problems doing calculations with it (some operations would work well others not; probably it was stored as float i do not know for sure...) So my solution was function str_rev_ip($str) { $ar=explode(".",$str); return "$ar[3].$ar[2].$ar[1].$ar[0]"; } and i take the result from inet_ntoa and parse it as str_rev_ip(long2ip($var)) ---- Manual Page -- http://www.php.net/manual/en/function.ip2long.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+54679 Delete: added to the manual -- http://master.php.net/manage/user-notes.php?action=delete+54679&report=yes&reason=added+to+the+manual Delete: bad code -- http://master.php.net/manage/user-notes.php?action=delete+54679&report=yes&reason=bad+code Delete: spam -- http://master.php.net/manage/user-notes.php?action=delete+54679&report=yes&reason=spam Delete: useless -- http://master.php.net/manage/user-notes.php?action=delete+54679&report=yes&reason=useless Delete: non-english -- http://master.php.net/manage/user-notes.php?action=delete+54679&report=yes&reason=non-english Delete: other reasons -- http://master.php.net/manage/user-notes.php?action=delete+54679&report=yes Reject -- http://master.php.net/manage/user-notes.php?action=reject+54679&report=yes Search -- http://master.php.net/manage/user-notes.php