Online PHP editor | output for 8RsIQ

@ 2018-01-11T21:54:39Z

<?php

function get_host($url) {
    $host = parse_url($url, PHP_URL_HOST);
    $names = explode(".", $host);
    
    if(count($names) == 1) {
        return $names[0];
    }
    $names = array_reverse($names);
    return $names[1] . '.' . $names[0];
}

echo get_host('https://google.com'); // google.com
echo "\n";
echo get_host('https://www.google.com'); // google.com
echo "\n";
echo get_host('https://sub1.sub2.google.com'); // google.com
echo "\n";
echo get_host('http://localhost'); // localhost

Output for 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.28, 8.4.1 - 8.4.14, 8.5.0: google.com google.com google.com localhost
Output for 8.4.15: /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.35' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.34' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15)
Process exited with code 1.

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