`$url_request = $_SERVER['REQUEST_URI'];


$mas_urls = array("/ulr_1","/ulr_2");

if(isset($mas_urls->$url_request)){
    $this_url = true;
}
else{
    $this_url = false;
}
switch ($url_request) {
default:
        if($this_url){
            echo $vibor_url;
        }
        else{
            echo $default_url;
        }
    }`