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Author Topic: Using Twitter API v1.1  (Read 3275 times)

Dakusan

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Using Twitter API v1.1
« on: August 06, 2013, 02:03:50 PM »

Original post for Using Twitter API v1.1 can be found at https://www.castledragmire.com/Posts/Using_Twitter_API_v1.1.
Originally posted on: 08/06/13

Twitter recently turned off their v1.0 API which broke a multitude of applications, many of which are still broken today. I had the need to immediately update at least one website to the new Twitter v1.1 API, but I could not find a simple bare bones example on the internet. Pretty much all the code/libraries out there I could find for the new API version were hundreds to thousands of lines long, or didn’t work >.<; . So anywho, here is the simple PHP code I put together to make API calls.

This code requires certain consumer/authentication keys and secrets. You can find how to generate them elsewhere online.


//OAuth Request parameters
$ConsumerKey='FILL ME IN';
$ConsumerSecret='FILL ME IN';
$AccessToken='FILL ME IN';
$AccessTokenSecret='FILL ME IN';

function EncodeParam($input) { return strtr(rawurlencode($input), Array('+'=>' ', '%7E'=>'~')); }
function SendTwitterRequest($RequestURL, $Params=Array())
{
   //Compile the OAuth parameters
   global $ConsumerKey, $ConsumerSecret, $AccessToken, $AccessTokenSecret;
   $Params=array_merge(
      $Params,
      Array('oauth_version'=>'1.0', 'oauth_nonce'=>mt_rand(), 'oauth_timestamp'=>time(), 'oauth_consumer_key'=>$ConsumerKey, 'oauth_signature_method'=>'HMAC-SHA1'),
      isset($AccessToken) ? Array('oauth_token'=>$AccessToken) : Array()
   );
   uksort($Params, 'strcmp'); //Must be sorted to determine the signature
   foreach($Params as $Key => &$Val) //Create the url encoded parameter list
      $Val=EncodeParam($Key).'='.EncodeParam($Val);
   $Params=implode('&', $Params); //Combine the parameter list
   $Params.='&oauth_signature='.EncodeParam(base64_encode(hash_hmac('sha1', 'GET&'.EncodeParam($RequestURL).'&'.EncodeParam($Params), EncodeParam($ConsumerSecret).'&'.EncodeParam($AccessTokenSecret), TRUE)));

   //Do the OAuth request
   $CurlObj=curl_init();
   foreach(Array(CURLOPT_URL=>"$RequestURL?$Params", CURLOPT_SSL_VERIFYHOST=>0, CURLOPT_SSL_VERIFYPEER=>0, CURLOPT_RETURNTRANSFER=>1) as $Key => $CurlVal)
      curl_setopt($CurlObj, $Key, $CurlVal);
   $Result=curl_exec($CurlObj);
   curl_close($CurlObj);
   return $Result;
}

If you don’t have an AccessToken and AccessSecret yet, you can get them through the following code:

$OAuthResult=SendTwitterRequest('https://twitter.com/oauth/request_token');
parse_str($OAuthResult, $OauthRet);
if(!isset($OauthRet['oauth_token']))
   throw new Exception("OAuth error: $OAuthResult");
$AccessToken=$OauthRet['oauth_token'];
$AccessSecret=$OauthRet['oauth_token_secret'];

Here is an example to pull the last 4 tweets from a user:

$UserName='TheUserName';
$Result=json_decode(SendTwitterRequest('https://api.twitter.com/1.1/statuses/user_timeline.json', Array('screen_name'=>$UserName, 'count'=>4)));
if(isset($Result->{'errors'}))
   throw new Exception($Result->{'errors'}[0]->{'message'});
$Tweets=Array();
foreach($Result as $Tweet)
   $Tweets[]=$Tweet->text;

print implode('
', $Tweets);
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