3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $domain_name = "президент.рф"; $domain_name = idn_to_ascii($domain_name); function is_valid_domain_name($domain_name) { return (preg_match("/^([a-z\d](-*[a-z\d])*)(\.([a-z\d](-*[a-z\d])*))*$/i", $domain_name) //valid chars check && preg_match("/^.{1,253}$/", $domain_name) //overall length check && preg_match("/^[^\.]{1,63}(\.[^\.]{1,63})*$/", $domain_name) ); //length of each label } echo is_valid_domain_name($domain_name) ? "Domain is valid." : "Domain is not valid."; ?>
based on PnQJF
Output for 5.4.0 - 7.1.0
Domain is valid.
Output for 5.0.0 - 5.3.29
Fatal error: Call to undefined function idn_to_ascii() in /in/TSpve on line 4
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: idn_to_ascii() in /in/TSpve on line 4
Process exited with code 255.
Output for 4.3.2 - 4.4.4
Fatal error: Call to undefined function: idn_to_ascii() in /in/TSpve on line 4
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: idn_to_ascii() in /in/TSpve on line 4