Google URL SHortener PHP function

<?php
    function googl($longUrl)
    {
        $post = json_encode(array('longUrl' => $longUrl));
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, 'https://www.googleapis.com/urlshortener/v1/url');
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
        curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
        curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-Type: application/json'));
        curl_setopt($ch, CURLOPT_POST, true);
        curl_setopt($ch, CURLOPT_POSTFIELDS, $post);
        $result = json_decode(curl_exec($ch));
        curl_close($ch);
        if(isset($result->id)) return $result->id;
        return false;
    }

    echo googl('http://www.google.com');
?>