abstract:本文實(shí)例講述了php微信公眾平臺(tái)開發(fā)類。分享給大家供大家參考。具體分析如下:ThinkWechat.php類文件如下:<?php class Wechat { /** * 微信推送過來的數(shù)據(jù)或響應(yīng)數(shù)據(jù) * @var array &nbs
本文實(shí)例講述了php微信公眾平臺(tái)開發(fā)類。分享給大家供大家參考。具體分析如下:
ThinkWechat.php類文件如下:
<?php class Wechat { /** * 微信推送過來的數(shù)據(jù)或響應(yīng)數(shù)據(jù) * @var array */ private $data = array(); /** * 構(gòu)造方法,用于實(shí)例化微信SDK * @param string $token 微信開放平臺(tái)設(shè)置的TOKEN */ public function __construct($token) { $this->auth($token) || exit; if(!empty($_GET['echostr'])){ exit($_GET['echostr']); } else { try { $xml = file_get_contents("php://input"); $xml = new SimpleXMLElement($xml); $xml || exit; foreach ($xml as $key => $value) { $this->data[$key] = strval($value); } }catch(Exception $e){ } } } /** * 獲取微信推送的數(shù)據(jù) * @return array 轉(zhuǎn)換為數(shù)組后的數(shù)據(jù) */ public function request(){ return $this->data; } /** * * 響應(yīng)微信發(fā)送的信息(自動(dòng)回復(fù)) * @param string $to 接收用戶名 * @param string $from 發(fā)送者用戶名 * @param array $content 回復(fù)信息,文本信息為string類型 * @param string $type 消息類型 * @param string $flag 是否新標(biāo)剛接受到的信息 * @return string XML字符串 */ public function response($content, $type = 'text', $flag = 0){ /* 基礎(chǔ)數(shù)據(jù) */ $this->data = array( 'ToUserName' => $this->data['FromUserName'], 'FromUserName' => $this->data['ToUserName'], 'CreateTime' => time(), 'MsgType' => $type, ); /* 添加類型數(shù)據(jù) */ $this->$type($content); /* 添加狀態(tài) */ $this->data['FuncFlag'] = $flag; /* 轉(zhuǎn)換數(shù)據(jù)為XML */ $xml = new SimpleXMLElement('<xml></xml>'); $this->data2xml($xml, $this->data); exit($xml->asXML()); } /** * 回復(fù)文本信息 * @param string $content 要回復(fù)的信息 */ private function text($content){ $this->data['Content'] = $content; } /** * 回復(fù)音樂信息 * @param string $content 要回復(fù)的音樂 */ private function music($music){ list( $music['Title'], $music['Description'], $music['MusicUrl'], $music['HQMusicUrl'] ) = $music; $this->data['Music'] = $music; } /** * 回復(fù)圖文信息 * @param string $news 要回復(fù)的圖文內(nèi)容 */ private function news($news){ $articles = array(); foreach ($news as $key => $value) { list( $articles[$key]['Title'], $articles[$key]['Description'], $articles[$key]['PicUrl'], $articles[$key]['Url'] ) = $value; if($key >= 9) { break; } //最多只允許10調(diào)新聞 } $this->data['ArticleCount'] = count($articles); $this->data['Articles'] = $articles; } /** * 數(shù)據(jù)XML編碼 * @param object $xml XML對(duì)象 * @param mixed $data 數(shù)據(jù) * @param string $item 數(shù)字索引時(shí)的節(jié)點(diǎn)名稱 * @return string */ private function data2xml($xml, $data, $item = 'item') { foreach ($data as $key => $value) { /* 指定默認(rèn)的數(shù)字key */ is_numeric($key) && $key = $item; /* 添加子元素 */ if(is_array($value) || is_object($value)){ $child = $xml->addChild($key); $this->data2xml($child, $value, $item); } else { if(is_numeric($value)){ $child = $xml->addChild($key, $value); } else { $child = $xml->addChild($key); $node = dom_import_simplexml($child); $node->appendChild($node->ownerDocument->createCDATASection($value)); } } } } /** * 對(duì)數(shù)據(jù)進(jìn)行簽名認(rèn)證,確保是微信發(fā)送的數(shù)據(jù) * @param string $token 微信開放平臺(tái)設(shè)置的TOKEN * @return boolean true-簽名正確,false-簽名錯(cuò)誤 */ private function auth($token){ if(empty($_GET['signature'])) return; /* 獲取數(shù)據(jù) */ $data = array($_GET['timestamp'], $_GET['nonce'], $token); $sign = $_GET['signature']; /* 對(duì)數(shù)據(jù)進(jìn)行字典排序 */ sort($data,SORT_STRING); /* 生成簽名 */ $signature = sha1(implode($data)); return $signature === $sign; } }
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