导读：在设计博客类站点时，有时会需要在发布文章时同步发布在微博上。本文阐述了实现该功能的基本方式。

include_once(  'sina_config.php' );

include_once( 'saetv2.ex.class.php' );

//获取到授权的url

$o = new SaeTOAuthV2( WB_AKEY , WB_SKEY  );

$code_url = $o->getAuthorizeURL( WB_CALLBACK_URL );

//post或get方式调用该url，取得授权；授权完成后，新浪会调用我们这边传过去的回调地址：WB_CALLBACK_URL 

request()->redirect($code_url);

$o = new SaeTOAuthV2( WB_AKEY , WB_SKEY );

if (isset($_REQUEST['code'])) {

$keys = array();

$keys['code'] = $_REQUEST['code'];

$keys['redirect_uri'] = WB_CALLBACK_URL;

try {

$token = $o->getAccessToken( 'code', $keys ) ;

} catch (OAuthException $e) {

echo "weibo.com get access token err.";

LOG_ERR("weibo.com get access token err.");

return ;

}

}

if ($token) {

//取到授权后的api调用密钥，可用存起来，在有效期内多次调用api接口就不用再授权了

$_SESSION['token'] = $token;

$c = new SaeTClientV2( WB_AKEY , WB_SKEY , $_SESSION['token']['access_token'] );

$ret = $c->update( $weiboStr );    //发送微博

if ( isset($ret['error_code']) && $ret['error_code'] > 0 ) {

$str = "Weibo.com Send failed. err info:" . $ret['error_code'] . '/' . $ret['error'];

LOG_ERR($str);

} else {

LOG_INFO("Weibo.com Send Success.");

}

}

//获取当前微博内容（140字）

public function getWeibo()

{

$titleLen = mb_strlen($this->title, 'UTF-8');

//140字除去链接的20个字和省略符；剩115字左右，需要说明的是链接：无论文章的链接多长，在微博里都会被替换成短链接，按短链接的长度来计算字数；

$summaryLen = 115 - $titleLen ; 

$pubPaper = cutstr_html($this->summary);

if(mb_strlen($pubPaper, 'UTF-8')  >= $summaryLen)

$pubPaper = mb_substr($pubPaper,0,$summaryLen,'UTF-8');

$pubPaper = sprintf('【%s】%s...%s', $this->title , $pubPaper , aurl('post/show', array('id' => $this->id)));

return $pubPaper;

}

//完全的去除html标记

function cutstr_html($string)

{

$string = strip_tags($string);

$string = preg_replace ('/n/is', '', $string);

$string = preg_replace ('/ |　/is', '', $string);

$string = preg_replace ('/ /is', '', $string);

return $string;

}