Google API - URL Shortener with PHP

Question

My code is below. The URL shortening service works, but it doesn\'t when I insert my $POST. Does anyone know how to fix this my looking at the code?

Answer 1

 $longUrl, 'key' => $apiKey);
        $curlObj = curl_init();
        $jsonData = json_encode($postData);
        curl_setopt($curlObj, CURLOPT_URL, 'https://www.googleapis.com/urlshortener/v1/url?key='.$postData['key']);
        curl_setopt($curlObj, CURLOPT_RETURNTRANSFER, 1);
        curl_setopt($curlObj, CURLOPT_SSL_VERIFYPEER, 0);
        curl_setopt($curlObj, CURLOPT_HEADER, 0);
        curl_setopt($curlObj, CURLOPT_HTTPHEADER, array('Content-type:application/json'));
        curl_setopt($curlObj, CURLOPT_POST, 1);
        curl_setopt($curlObj, CURLOPT_POSTFIELDS, $jsonData);
        $response = curl_exec($curlObj);
        $json = json_decode($response);
        curl_close($curlObj);
        if(isset($json->error) || $json == null){
             return $longUrl; // retrun same url in case of error or null response
        }else{
            return $json->id; // return shorted url
        }
    }
// use this function here
$longUrl = 'https://www.w3schools.com/';
echo short_url($longUrl); // print short url

// If you want to return short url to long url use below function
function long_url($shortUrl){
        $apiKey = '***********'; // put your GOOGLE API SHORTENING Key
        $params = array('shortUrl' => $shortUrl, 'key' => $apiKey,'projection' => "ANALYTICS_CLICKS");
        $final_url = 'https://www.googleapis.com/urlshortener/v1/url?'.http_build_query($params);
        $curlObj = curl_init($final_url);
        curl_setopt($curlObj, CURLOPT_RETURNTRANSFER, 1);
        curl_setopt($curlObj, CURLOPT_SSL_VERIFYPEER, 0);
        curl_setopt($curlObj, CURLOPT_HEADER, 0);
        curl_setopt($curlObj, CURLOPT_HTTPHEADER, array('Content-type:application/json'));
        $response = curl_exec($curlObj);
        $json = json_decode($response);
        curl_close($curlObj);
        if(isset($json->error) || $json == null){
            return $shortUrl;
        }else{
            return $json->longUrl;
        }
    }
//Function Use here
echo "
"; // For next line
$shortUrl = ''; // put the short url generated from above function
echo long_url($shortUrl); // get long url
?>