之前的一篇博客里有提到调用新浪微博API转短址，而我发现现在不少人都有使用新浪微博短链接口的需求。这对于老手来说自然是小菜一碟，但是初学者很可能在写该代码时花不少时间，所以我就把自己 写的代码分享出来供大家参考一下。   使用前请先在新浪微博开放平台上创建应用获取APPID（但根据我的经验，未通过审核的应用的APPID调用时会发生错误，原因是权限不够，不过别担心，去百度上搜一个能用的就行了）。   PS:本代码参考自Jucelin(http://jucelin.com/)共享的旧版API调用代码，由于新版API改了不少地方，旧代码不能使用，所以本人修改后分享出来 [php]<?php $backurl=""; if (isset($_GET[’type’])){ $type=$_GET[’type’]; switch (trim($type)) { case 1: if (isset($_GET[‘url’])){ $backurl=shorturl(urlencode($_GET[‘url’])); //注意必须经过urlencode } else{ $backurl=“error0”; } break; case 2: if (isset($_GET[‘url’])){ $backurl=expandurl($_GET[‘url’]); } else{ $backurl=“error1”; } break; default: $backurl=“error2”; } } echo $backurl;

function shortenSinaUrl($long_url){ $apiKey=‘xxxxxxxxx’; //请替换成你的APPID $apiUrl=‘https://api.weibo.com/2/short_url/shorten.json?source='.$apiKey.'&url_long='.$long_url; $curlObj = curl_init(); curl_setopt($curlObj, CURLOPT_URL, $apiUrl); curl_setopt($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’)); $response = curl_exec($curlObj); curl_close($curlObj); $json = json_decode($response); return $json->urls[0]->url_short; }

function expandSinaUrl($short_url){ $apiKey=‘xxxxxxxxx’; //请替换成你的APPID $apiUrl=‘https://api.weibo.com/2/short_url/expand.json?source='.$apiKey.'&url_short='.$short_url; $curlObj = curl_init(); curl_setopt($curlObj, CURLOPT_URL, $apiUrl); curl_setopt($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’)); $response = curl_exec($curlObj); curl_close($curlObj); $json = json_decode($response); return $json->urls[0]->url_long; }

function shorturl($long_url){ $apiKey=‘xxxxxxxxx’; //请替换成你的APPID $apiUrl=‘https://api.weibo.com/2/short_url/shorten.json?source='.$apiKey.'&url_long='.$long_url; $response = file_get_contents($apiUrl); $json = json_decode($response); return $json->urls[0]->url_short; }

function expandurl($short_url){ $apiKey=‘xxxxxxxxx’; //请替换成你的APPID $apiUrl=‘https://api.weibo.com/2/short_url/expand.json?source='.$apiKey.'&url_short='.$short_url; $response = file_get_contents($apiUrl); $json = json_decode($response); return $json->urls[0]->url_long; } ?>[/php]