curl webpage into string variable help

i'm trying this below but it isn't working, the page is coming up blank ..

<?php
$url = 'http://www.realgm.com';
function get_url_contents($url){
        $crl = curl_init();
        $timeout = 5;
        curl_setopt ($crl, CURLOPT_URL,$url);
        curl_setopt ($crl, CURLOPT_RETURNTRANSFER, 1);
        curl_setopt ($crl, CURLOPT_CONNECTTIMEOUT, $timeout);
        $ret = curl_exec($crl);
        curl_close($crl);
        return $ret;
}

?>

That all you got or is there more?

call the function after the function definition and use the below code

$ret=get_url_contents('http://www.realgm.com';);
echo $ret;

now the result will be seen