diff options
Diffstat (limited to 'phpBB/develop/ip_regex.php')
| -rw-r--r-- | phpBB/develop/ip_regex.php | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/phpBB/develop/ip_regex.php b/phpBB/develop/ip_regex.php new file mode 100644 index 0000000000..4e7aaf0156 --- /dev/null +++ b/phpBB/develop/ip_regex.php @@ -0,0 +1,37 @@ +<?php +$dec_octet = '(?:\d?\d|1\d\d|2[0-4]\d|25[0-5])'; +$h16 = '[\dA-F]{1,4}'; +$ipv4 = "(?:$dec_octet\.){3}$dec_octet"; +$ls32 = "(?:$h16:$h16|$ipv4)"; + +$ipv6_construct = array( + array(false, '', '{6}', $ls32), + array(false, '::', '{5}', $ls32), + array('', ':', '{4}', $ls32), + array('{1,2}', ':', '{3}', $ls32), + array('{1,3}', ':', '{2}', $ls32), + array('{1,4}', ':', '', $ls32), + array('{1,5}', ':', false, $ls32), + array('{1,6}', ':', false, $h16), + array('{1,7}', ':', false, '') +); + +$ipv6 = '(?:'; +foreach ($ipv6_construct as $ip_type) +{ + $ipv6 .= '(?:'; + if ($ip_type[0] !== false) + { + $ipv6 .= "(?:$h16:)" . $ip_type[0]; + } + $ipv6 .= $ip_type[1]; + if ($ip_type[2] !== false) + { + $ipv6 .= "(?:$h16:)" . $ip_type[2]; + } + $ipv6 .= $ip_type[3] . ')|'; +} +$ipv6 = substr($ipv6, 0, -1) . ')'; + +echo 'IPv4: ' . $ipv4 . "<br />\nIPv6: " . $ipv6; +?>
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