3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php function convertIPv6To4($ip) { // validate if given IP is a proper IPv6 address if (filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV6) === false) { // validate if given IP is a proper IPv4 address if (filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4) === false) { // ip address is invalid return ''; } return $ip; } // check if ip is a masked IPv4 address if (substr($ip, 0, 7) == '::ffff:') { $ip = substr($ip, 7); if (preg_match('~^([a-f0-9]{1,4}):([a-f0-9]{1,4})$~', $ip, $matches)) { $ip = array( base_convert($matches[1], 16, 10), base_convert($matches[2], 16, 10) ); $ipParts = array(); $tmp = $ip[0] % 256; $ipParts[] = ($ip[0] - $tmp) / 256; $ipParts[] = $tmp; $tmp = $ip[1] % 256; $ipParts[] = ($ip[1] - $tmp) / 256; $ipParts[] = $tmp; return implode('.', $ipParts); } else { return $ip; } } else { // given ip is an IPv6 address and cannot be converted return $ip; } } echo convertIPv6To4('2003:66:4f14:d880:7075:9457:3857:29ec')
based on Dh4M3
Output for 5.4.0 - 5.4.32
Parse error: syntax error, unexpected end of file, expecting ',' or ';' in /in/qQAuJ on line 43
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected $end, expecting ',' or ';' in /in/qQAuJ on line 43
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected $, expecting ',' or ';' in /in/qQAuJ on line 43
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `','' or `';'' in /in/qQAuJ on line 43
Process exited with code 255.