Method of calling Sina short link API by php

This paper describes the method of calling Sina short link API by php. Share it for your reference. The specific methods are as follows:

<?php

//Sina App_Key

define('SINA_APPKEY', '31641035');

function curlQuery($url) {

 // Set attachment HTTP Head 

 $addHead = array(

 "Content-type: application/json"

 );

 // Initialization curl Of course, you can also use fsockopen Substitute 

 $curl_obj = curl_init();

 // Set up the URL 

 curl_setopt($curl_obj, CURLOPT_URL, $url);

 // Additional Head Content 

 curl_setopt($curl_obj, CURLOPT_HTTPHEADER, $addHead);

 // Whether to output return header information 

 curl_setopt($curl_obj, CURLOPT_HEADER, 0);

 // Will curl_exec Returns the result of 

 curl_setopt($curl_obj, CURLOPT_RETURNTRANSFER, 1);

 // Set timeout time 

 curl_setopt($curl_obj, CURLOPT_TIMEOUT, 15);

 // Execute 

 $result = curl_exec($curl_obj);

 // Shut down curl Answer 

 curl_close($curl_obj);

 return $result;

}

// Under simple treatment url , sina For no agreement (http://) Beginning and irregular addresses return errors 

function filterUrl($url = '') {

 $url = trim(strtolower($url));

 $url = trim(preg_replace('/^http:///', '', $url));

 if ($url == '')

 return false;

 else

 return urlencode('http://' . $url);

}

// Get short URLs from long URLs 

function sinaShortenUrl($long_url) {

 // Splice request address, which you can see in the official document 

 $url = 'http://api.t.sina.com.cn/short_url/shorten.json?source=' . SINA_APPKEY . '&url_long=' . $long_url;

 // Get the result of the request 

 $result = curlQuery($url);

 // The following line of comments is used for debugging. You can remove the comments and see from sina What is the information returned 

 //print_r($result);exit();

 // Analyse json

 $json = json_decode($result);

 // Exception return false

 if (isset($json->error) || !isset($json[0]->url_short) || $json[0]->url_short == '')

 return false;

 else

 return $json[0]->url_short;

}

// Getting long URLs from short URLs, this function reuses a lot sinaShortenUrl In order to facilitate your reading and comparison, you can merge the two functions by yourself 

function sinaExpandUrl($short_url) {

 // Splice request address, which you can see in the official document 

 $url = 'http://api.t.sina.com.cn/short_url/expand.json?source=' . SINA_APPKEY . '&url_short=' . $short_url;

 // Get the result of the request 

 $result = curlQuery($url);

 // The following line of comments is used for debugging. You can remove the comments and see from sina What is the information returned 

 //print_r($result);exit();

 // Analyse json

 $json = json_decode($result);

 // Exception return false

 if (isset($json->error) || !isset($json[0]->url_long) || $json[0]->url_long == '')

 return false;

 else

 return $json[0]->url_long;

}

// Website to be shortened 

$url = $long; // It's up to you here. Modify it into the website you want to shorten or get it post The data or how to drop. 

$url = filterUrl($url);

$short = sinaShortenUrl($url);

$ulong = sinaExpandUrl($short);

?>

The short connection in this article already comes with 1 appkey without applying for KEY yourself. Of course, if you need to use your own, you can also replace it yourself. As for usage, it's up to you. Insert it into other programs and make a page that generates short links alone. I won't say much about how to use it.

I hope this article is helpful to everyone's PHP programming.