- var_dump: documentation ( source)
<?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);