3v4l.org

run code in 200+ php & hhvm versions
<?php $fictional_url = "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa." . "bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb." . "cccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc." . "dddddddddddddddddddddddddddddddddddddddddddddddddddddddddddd." . "google-analytics.com"; $result = idn_to_ascii($fictional_url, 0, INTL_IDNA_VARIANT_UTS46, $idna_info); var_dump($result); var_dump($idna_info);
based on bKuLv
Output for 5.6.0 - 7.3.1
bool(false) array(0) { }