php parse links test

parse_links_tmp

<?php

function prepareLink($link, $allowedDomains = []) {
    $parsed = parse_url($link);
    $withoutScheme = preg_replace("/[a-z]+:\/\/(.*)/", "$1", $link);

    if (in_array($parsed['host'], $allowedDomains)) {
        $href = preg_replace(sprintf("/.+%s(.*)/", $parsed['host']), "$1", $link);
        return sprintf('<a href="%s">%s</a>', $href, $withoutScheme);
    }

    return $withoutScheme;
}

$allowedDomains = ['site.ru'];
$links = [
    'http://site.ru/eee.php',
    'http://test.ru/eee.php'
];

foreach ($links as $link) {
    var_dump(prepareLink($link, $allowedDomains));
}