Introduction to Sina Weibo API Development - User Authorization (PHP Basics)_PHP Tutorial

Nowadays, more and more people are playing Weibo, and there are more and more third-party application developments related to Weibo. I accidentally came into contact with Sina Weibo API development, and there are many resources for Sina Weibo API development. Sina Weibo provides a platform for developers. The website address is: http://open.weibo.com. It contains comprehensive information on Sina Weibo development, including usage and introduction by developers, and APIs in various languages. Function introduction documents, SDK and other information.

In the process of development and learning, I feel that although it is not too difficult, there are still some problems that we need to pay attention to. Today, in the process of development and learning, I simply made use of PHP. The content of Sina Weibo API development is organized and explained.

Preparation work before Sina Weibo API development

First go to Sina Weibo Open Platform to download the PHP-based SDK development package, download The address is: http://code.google.com/p/libweibo/downloads/detail?name=weibo-oauth-class-with-image-avatar-06-29.zip

Put it in after the download is complete Go to your own development environment and unzip it. It also contains a demo program. We can refer to its sample program to write.

The most important user authorization process in Sina Weibo API development

In fact, many problems during the development process are focused on the user authorization stage. The third-party application I developed uses OAuth authorization. The OAuth authorization process has a very clear and complete introduction in the Sina Weibo open platform. We can go to http://open.weibo.com/wiki/Oauth to view it. I will introduce it here from the perspective of example development. and instructions.

1. First obtain the unauthorized Request Token

Copy the code The code is as follows:

$o = new WeiboOAuth( WB_AKEY , WB_SKEY );
$keys = $o->getRequestToken();
//echo($keys['oauth_token'].' : '.$keys ['oauth_token_secret']);

We need to register an account in the Sina Weibo open platform, or log in directly with our Sina Weibo account, enter my application, and then follow the prompts to create a After creating our own third-party application, we can get two authorized App Key and App Secret values. These two values ​​are the key to our application development.
After getting the authorization value, we can use the above code to obtain the unauthorized Request Token value, and they will be stored in the $key array variable.
2. Then request the user to authorize the Token

Copy the code The code is as follows:

$_SESSION ['keys'] = $keys;
aurl = $o->getAuthorizeURL( $keys['oauth_token'] ,false , 'http://localhost/callback.php');

After getting the unauthorized Request Token value, we can use the above code to start preparing to go to the Sina Weibo authorization page for authorization. $aurl is the authorization link page. After we get $aurl, we can use header() to jump directly Go to the authorization page, and then the user enters the Sina Weibo account and password for authorization. After the authorization is completed, it will automatically jump back to the callback page you set in the last parameter: http://localhost/callback.php. You can use this link Set it to the previous page so that it will automatically jump back after the authorization is completed.
It should be noted that it is necessary to set the value of session keys, which is needed to obtain the authorized Access Token below. Many friends may refer to the instructions on the open platform for authorization, but they will find that errors always occur. This is usually the problem. You have not set the session keys value. Of course, you cannot get the Access Token value below. This must be remembered.
3. Finally get the Access Token authorized by the user

Copy the code The code is as follows:

$o = new WeiboOAuth( WB_AKEY ,
WB_SKEY ,
$_SESSION['keys']['oauth_token'] ,
$_SESSION['keys']['oauth_token_secret'] );
$ last_key = $o->getAccessToken( $_REQUEST['oauth_verifier'] ) ;
echo($last_key['oauth_token']);

The above code finally obtains user authorization Access Token, a total of two values, they are stored in the $last_key array variable. We can also see that the next two parameters are the session values ​​we set earlier. This is basically complete. This is a complete process of Sina Weibo user authorization.
Work after authorization is completed
After authorization is completed, we can start to call various API function interfaces provided by Sina Weibo to develop practical applications. Here I will get the latest Weibo record interface. A simple explanation, everything else is similar.
The API interface function to get the latest Sina Weibo information is: public_timeline(), the sample code is as follows:

Copy the code The code is as follows:

//Get the first 20 latest updated public Weibo messages
$c = new WeiboClient( WB_AKEY ,
WB_SKEY ,
$oauth_token ,
$oauth_token_secret );
$msg = $c->public_timeline();
if ($msg === false || $msg === null){
echo "Error occured";
return false;
}
if (isset($msg['error_code']) && isset($msg['error'])){
echo ('Error_code: '.$msg['error_code'].' ; Error: '.$msg['error'] );
return false;
}
print_r($msg);

Usually we get Access authorization from the user After the Token values ​​are saved, they are stored in our user table and correspond to the accounts in our application. Later, we do not need to authenticate every time when calling Sina Weibo's API interfaces.
The above code is very simple. Instantiate the WeiboClient object and then directly call the interface function public_timeline to get the returned information, if there is no error. Usually the data format returned by the Sina Weibo API interface is generally Json format or XML format, and we are using PHP for development here, so using Json format data has inherent advantages. If Json format data is returned, use PHP directly. The function json_decode() can be converted into the array format commonly used in PHP.
Source: Hongxincao Blog
Original address: http://www.hongxincao.com/archives/579.html

http://www.bkjia.com/PHPjc/324416.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/324416.htmlTechArticleMore and more people are playing Weibo now, and the development of third-party applications for Weibo is also increasing The more I learned, the more I accidentally came into contact with Sina Weibo API development and the resources for Sina Weibo API development...