Google shortner issu

Question

So i have a small PHP script to generate short links, it work but some times i got this error :

Undefined property: stdClass::$id","file":ShortLink.php","line":31

This is my script :

<?php

class ShortLink {

public static function generateShortLink($longUrl)
{
    //This is the URL you want to shorten
    $apiKey = 'MY_API_KEY';
    //Get API key from : http://code.google.com/apis/console/

    $postData = array('longUrl' => $longUrl, 'key' => $apiKey);
    $jsonData = json_encode($postData);

    $curlObj = curl_init();

    curl_setopt($curlObj, CURLOPT_URL, 'https://www.googleapis.com/urlshortener/v1/url');
    curl_setopt($curlObj, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($curlObj, CURLOPT_SSL_VERIFYPEER, 0);
    curl_setopt($curlObj, CURLOPT_HEADER, 0);
    curl_setopt($curlObj, CURLOPT_HTTPHEADER, array('Content-type:application/json'));
    curl_setopt($curlObj, CURLOPT_POST, 1);
    curl_setopt($curlObj, CURLOPT_POSTFIELDS, $jsonData);

    $response = curl_exec($curlObj);

    //change the response json string to object
    $json = json_decode($response);

    curl_close($curlObj);

    return $json->id;
   }

 }

When i start worked with this script 6 or 7 months ago i hadn't this error but now i start get it and i have no idea why, so please if someone has any idea i will be very appreciative.

Update : When i vardump my $json i get that :

{ ["domain"]=> string(11) "usageLimits" ["reason"]=> string(26) "userRateLimitExceededUnreg" ["message"]=> string(40) "User Rate Limit Exceeded. Please sign up" ["extendedHelp"]=> string(36) "https://code.google.com/apis/console" } } ["code"]=> int(403) ["message"]=> string(40) "User Rate Limit Exceeded. Please sign up" }}

So i wondered if Google limited the Google shorten service ?

Answer 1

Sometimes because of network curl is not returned with response within 30 seconds (default time limit in php for a cmd to finish)

Try changing the time limit in php.ini or if that is not in your control or you do not want to modify it for all the php cmds try bool set_time_limit ( int $seconds ) before calling curl_exec

Update:

I see there is no id field in the json that is returned.

{ ["domain"]=> string(11) "usageLimits" 
  ["reason"]=> string(26) "userRateLimitExceededUnreg" 
  ["message"]=> string(40) "User Rate Limit Exceeded. Please sign up" 
  ["extendedHelp"]=> string(36) "https://code.google.com/apis/console" 
} 
}  
  ["code"]=> int(403) 
  ["message"]=> string(40) "User Rate Limit Exceeded. Please sign up" 
}
}

And if you closely see your User rate limit has been reached See here for details on limitation on using google apis. (You may try different IP i.e. different machine or different api key and same code may start working).

Hope this helps

Answer 2

class ShortLink { 
public static function generateShortLink($longUrl)
{
    //This is the URL you want to shorten
    $apiKey = 'YOUR_SERVER_API_KEY';
    //Get API key from : http://code.google.com/apis/console/

    $postData = array('longUrl' => $longUrl, 'key' => $apiKey);
    $jsonData = json_encode($postData);

    $curlObj = curl_init();

    curl_setopt($curlObj, CURLOPT_URL, 'https://www.googleapis.com/urlshortener/v1/url');
    curl_setopt($curlObj, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($curlObj, CURLOPT_SSL_VERIFYPEER, 0);
    curl_setopt($curlObj, CURLOPT_HEADER, 0);
    curl_setopt($curlObj, CURLOPT_HTTPHEADER, array('Content-type:application/json'));
    curl_setopt($curlObj, CURLOPT_POST, 1);
    curl_setopt($curlObj, CURLOPT_POSTFIELDS, $jsonData);

    $response = curl_exec($curlObj);

    //change the response json string to object
    $json = json_decode($response);

    curl_close($curlObj);
    if(!is_object($json))  
    {  
        return(false);  
    }  
    return $json->id;
   }

}
$api = new ShortLink();
$shorturlid=$api->generateShortLink('http://avecsrthgdgnb.avcd');
echo $shorturlid;

are you using new console then enable URL Shortener API.