新浪长连接转为短连接的API与详解

http://api.t.sina.com.cn/short_url/shorten.json (返回结果是JSON格式) 
http://api.t.sina.com.cn/short_url/shorten.xml （返回结果是XML格式） 

<?php
$api = 'http://api.t.sina.com.cn/short_url/shorten.json'; // json
// $api = 'http://api.t.sina.com.cn/short_url/shorten.xml'; // xml
$source = '您申请的AppKey';
$url_long = 'https://detail.tmall.com/item.htm?spm=a21wu.241046-us.9629632455.7.193eb6cbbC9gFg&id=585958323801';
$request_url = sprintf($api.'?source=%s&url_long=%s', $source, $url_long);
$data = file_get_contents($request_url);
echo $data;
?>

[
    {
        "url_short": "http:\/\/t.cn\/Rki0twp",
        "url_long": "http:\/\/detail.tmall.com/item.htm?spm=a21wu.241046-us.9629632455.7.193eb6cbbC9gFg&id=585958323801",
        "type": 0
    }
]

<?xml version="1.0" encoding="UTF-8"?>
<urls>
	<url>
		<url_short> http://t.cn/Rki0twp</url_short>
		<url_long>https://detail.tmall.com/item.htm?spm=a21wu.241046-us.9629632455.7.193eb6cbbC9gFg&id=585958323801</url_long>
		<type>0</type>
	</url>
</urls>

/*
 * 生成新浪的短链接或还原新浪短链接
 */
class ShortUrl{
    //新浪APPKEY
    const APPKEY='xxxxxxxx';  //你申请的appkey
    //CURL
    private static function CURLQueryString($url){
        //设置附加HTTP头
        $addHead=array("Content-type: application/json");
        //初始化curl
        $curl_obj=curl_init();
        //设置网址
        curl_setopt($curl_obj,CURLOPT_URL,$url);
        //附加Head内容
        curl_setopt($curl_obj,CURLOPT_HTTPHEADER,$addHead);
        //是否输出返回头信息
        curl_setopt($curl_obj,CURLOPT_HEADER,0);
        //将curl_exec的结果返回
        curl_setopt($curl_obj,CURLOPT_RETURNTRANSFER,1);
        //设置超时时间
        curl_setopt($curl_obj,CURLOPT_TIMEOUT,8);
        //执行
        $result=curl_exec($curl_obj);
        //关闭curl回话
        curl_close($curl_obj);
        return $result;
    }
    //处理返回结果
    private static function doWithResult($result,$field){
        $result=json_decode($result,true);
        return isset($result[0][$field])?$result[0][$field]:'';
    }
    //获取短链接
    public static function getShort($url){
        $url='http://api.t.sina.com.cn/short_url/shorten.json?source='.self::APPKEY.'&url_long='.$url;
        $result=self::CURLQueryString($url);
        return self::doWithResult($result,'url_short');
    }
    //获取长链接
    public static function getLong($url){
        $url='http://api.t.sina.com.cn/short_url/expand.json?source='.self::APPKEY.'&url_short='.$url;
        $result=self::CURLQueryString($url);
        return self::doWithResult($result,'url_long');
    }
}

<?php
/**
 * 调用新浪接口将长链接转为短链接
 * @param  string  $source 申请应用的AppKey
 * @param  array|string  $url_long  长链接，支持多个转换（需要先执行urlencode)
 * @return array
 */
 function getSinaShortUrl($source, $url_long){
  
    // 参数检查
    if(empty($source) || !$url_long){      
		return false;
    }    
	// 参数处理，字符串转为数组
    if(!is_array($url_long)){
		$url_long = array($url_long);
    }    
	// 拼接url_long参数请求格式
    $url_param = array_map(function($value){
        return '&url_long='.urlencode($value);
    }, $url_long);
    $url_param = implode('', $url_param);
  
    // 新浪生成短链接接口
    $api = 'http://api.t.sina.com.cn/short_url/shorten.json'; 
	
	// 请求url
    $request_url = sprintf($api.'?source=%s%s', $source, $url_param);        
	$result = array();    
	// 执行请求
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch, CURLOPT_URL, $request_url);    　　
	$data = curl_exec($ch);   
	if($error=curl_errno($ch)){   
		return false;
    }
    curl_close($ch);    
	$result = json_decode($data, true);    
	return $result;
  
}
//您申请的AppKey
$source = 'xxxxxxxssssss';
// 单个链接转换
$url_long = 'https://detail.tmall.com/item.htm?spm=a21wu.241046-us.9629632455.7.193eb6cbbC9gFg&id=585958323801';
$data = getSinaShortUrl($source, $url_long);
print_r($data);

// 多个链接转换
$url_longs = array(
'https://detail.tmall.com/item.htm?spm=a21wu.241046-us.9629632455.7.193eb6cbbC9gFg&id=585958323801',
'https://detail.tmall.com/item.htm?spm=a21wu.241046-us.9629632455.7.193eb6cbbC9gFg&id=585958323802',
'https://detail.tmall.com/item.htm?spm=a21wu.241046-us.9629632455.7.193eb6cbbC9gFg&id=585958323803',
'https://detail.tmall.com/item.htm?spm=a21wu.241046-us.9629632455.7.193eb6cbbC9gFg&id=585958323804',
'https://detail.tmall.com/item.htm?spm=a21wu.241046-us.9629632455.7.193eb6cbbC9gFg&id=585958323805',
);
$data_arr = getSinaShortUrl($source, $url_longs);
print_r($data_arr);