3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php function get_domain($url) { if ( !preg_match("/^http/", $url) ) $url = 'http://' . $url; if ( $url[strlen($url)-1] != '/' ) $url .= '/'; $pieces = parse_url($url); $domain = isset($pieces['host']) ? $pieces['host'] : ''; if ( preg_match('/(?P<domain>[a-z0-9][a-z0-9\-]{1,63}\.[a-z\.]{2,6})$/i', $domain, $regs) ) { $res = preg_replace('/^www\./', '', $regs['domain'] ); return $res; } return false; } var_dump(get_domain('http://onlinephpfunctions.com/index.php'));
Output for 4.3.3 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
string(22) "onlinephpfunctions.com"
Output for 4.3.0 - 4.3.2
Notice: Undefined index: domain in /in/FUrZU on line 12 string(0) ""