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run code in 150+ php & hhvm versions
Bugs & Features
<?php if(!function_exists('filter_var')) die('filter_var not available'); foreach(array( '', 'x', ' ', '0.0.0.0', '255.255.255.255', // Some bad IP '127.0.0.1', // localhost '10.0.0.0', '192.168.0.1', 'fe80::414a:a44e:53f2:e694%21', 'fe80::414a:a44e:53f2:e694', // Private IP addresses '8.8.8.8', '88.149.1.2', // Good IPv4 '2607:f0d0:1002:51::4', '2001:4860:b002::68', '2001:0db8:85a3:0042:1000:8a2e:0370:7334', // Good IPv6 ) as $ip) { echo "'$ip' => "; var_dump(filter_var($ip, FILTER_FLAG_IPV6)); }
Output for 5.2.1 - 7.1.0
'' => bool(false) 'x' => bool(false) ' ' => bool(false) '0.0.0.0' => bool(false) '255.255.255.255' => bool(false) '127.0.0.1' => bool(false) '10.0.0.0' => bool(false) '192.168.0.1' => bool(false) 'fe80::414a:a44e:53f2:e694%21' => bool(false) 'fe80::414a:a44e:53f2:e694' => bool(false) '8.8.8.8' => bool(false) '88.149.1.2' => bool(false) '2607:f0d0:1002:51::4' => bool(false) '2001:4860:b002::68' => bool(false) '2001:0db8:85a3:0042:1000:8a2e:0370:7334' => bool(false)
Output for 5.2.0
'' => string(0) "" 'x' => string(1) "x" ' ' => string(1) " " '0.0.0.0' => string(7) "0.0.0.0" '255.255.255.255' => string(15) "255.255.255.255" '127.0.0.1' => string(9) "127.0.0.1" '10.0.0.0' => string(8) "10.0.0.0" '192.168.0.1' => string(11) "192.168.0.1" 'fe80::414a:a44e:53f2:e694%21' => string(28) "fe80::414a:a44e:53f2:e694%21" 'fe80::414a:a44e:53f2:e694' => string(25) "fe80::414a:a44e:53f2:e694" '8.8.8.8' => string(7) "8.8.8.8" '88.149.1.2' => string(10) "88.149.1.2" '2607:f0d0:1002:51::4' => string(20) "2607:f0d0:1002:51::4" '2001:4860:b002::68' => string(18) "2001:4860:b002::68" '2001:0db8:85a3:0042:1000:8a2e:0370:7334' => string(39) "2001:0db8:85a3:0042:1000:8a2e:0370:7334"
Output for 4.3.0 - 5.1.6
filter_var not available