Can check whether support iOS universal links or Android app link

check_app_link.php

<?php

function curl_get($url) {
    $header_array = array(
        'Content-Type: application/json',
        'User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/72.0.3626.119 Safari/537.36'
    );
    $options = array(
        CURLOPT_URL => $url,
        CURLOPT_RETURNTRANSFER => TRUE,
        CURLOPT_VERBOSE => FALSE,
        CURLOPT_SSL_VERIFYPEER => FALSE,
    );
    $options[CURLOPT_HTTPHEADER] = $header_array;
    $ch = curl_init();
    curl_setopt_array($ch, $options);
    if ( ! $result = curl_exec($ch)) {
        trigger_error(curl_error($ch));
    }
    switch (curl_getinfo($ch, CURLINFO_HTTP_CODE)) {
        case 200:
            break;
        default:
            $result = FALSE;
    }
    curl_close($ch);
    return $result;
}

function check_json($data) {
    json_decode($data);
    return (json_last_error() == JSON_ERROR_NONE);
}

function check_ios($hostname, $is_retuen = FALSE) {
    $url_array = array(
        sprintf('https://%s/apple-app-site-association', $hostname),
        sprintf('https://%s/.well-known/apple-app-site-association', $hostname)
    );
    $size = count($url_array);
    for ($i = 0; $i < $size; $i++) {
        $result = curl_get($url_array[$i]);
        if ( ! $result || ! check_json($result)) {
            return FALSE;
        }
    }
    if ($is_retuen) {
        return $result;
    }
    return TRUE;
}

function check_android($hostname, $is_retuen = FALSE) {
    $url_array = array(
        sprintf('https://%s/.well-known/assetlinks.json', $hostname),
    );
    $size = count($url_array);
    for ($i = 0; $i < $size; $i++) {
        $result = curl_get($url_array[$i]);
        if ( ! $result || ! check_json($result)) {
            return FALSE;
        }
    }
    if ($is_retuen) {
        return $result;
    }
    return TRUE;
}

if (count($argv) < 2) {
    exit('hostname error');
}
$hostname = $argv[1];
$result = array(
    sprintf('android app link: %s', var_export(check_android($hostname), TRUE)),
    sprintf('ios universal Links: %s', var_export(check_ios($hostname), TRUE))
);
var_export($result);

Dada is different.