php的微信公众平台开发接口类

<?php
define("token", "weixin");
$wechatobj = new wechatcallbackapitest();
if (!isset($_get['echostr'])) {
$wechatobj->responsemsg();
}else{
$wechatobj->valid();
}
class wechatcallbackapitest
{
//验证消息
public function valid()
{
$echostr = $_get["echostr"];
if($this->checksignature()){
echo $echostr;
exit;
}
}
//检查签名
private function checksignature()
{
$signature = $_get["signature"];
$timestamp = $_get["timestamp"];
$nonce = $_get["nonce"];
$token = token;
$tmparr = array($token, $timestamp, $nonce);
sort($tmparr, sort_string);
$tmpstr = implode($tmparr);
$tmpstr = sha1($tmpstr);
if($tmpstr == $signature){
return true;
}else{
return false;
}
}
//响应消息
public function responsemsg()
{
$poststr = $globals["http_raw_post_data"];
if (!empty($poststr)){
$this->logger("r ".$poststr);
$postobj = simplexml_load_string($poststr, 'simplexmlelement', libxml_nocdata);
$rx_type = trim($postobj->msgtype);
switch ($rx_type)
{
case "event":
$result = $this->receiveevent($postobj);
break;
case "text":
$result = $this->receivetext($postobj);
break;
case "image":
$result = $this->receiveimage($postobj);
break;
case "location":
$result = $this->receivelocation($postobj);
break;
case "voice":
$result = $this->receivevoice($postobj);
break;
case "video":
$result = $this->receivevideo($postobj);
break;
case "link":
$result = $this->receivelink($postobj);
break;
default:
$result = "unknow msg type: ".$rx_type;
break;
}
$this->logger("t ".$result);
echo $result;
}else {
echo "";
exit;
}
}
//接收事件消息
private function receiveevent($object)
{
$content = "";
switch ($object->event)
{
case "subscribe":
$content = "欢迎关注方倍工作室 ";
$content .= (!empty($object->eventkey))?("\n来自二维码场景 ".str_replace("qrscene_","",$object->eventkey)):"";
break;
case "unsubscribe":
$content = "取消关注";
break;
case "scan":
$content = "扫描场景 ".$object->eventkey;
break;
case "click":
switch ($object->eventkey)
{
case "company":
$content = "方倍工作室提供互联网相关产品与服务。";
break;
default:
$content = "点击菜单：".$object->eventkey;
break;
}
break;
case "location":
$content = "上传位置：纬度 ".$object->latitude.";经度 ".$object->longitude;
break;
case "view":
$content = "跳转链接 ".$object->eventkey;
break;
default:
$content = "receive a new event: ".$object->event;
break;
}
$result = $this->transmittext($object, $content);
return $result;
}
//接收文本消息
private function receivetext($object)
{
switch ($object->content)
{
case "文本":
$content = "这是个文本消息";
break;
case "图文":
case "单图文":
$content = array();
$content[] = array("title"=>"单图文标题",  "description"=>"单图文内容", "picurl"=>"http://discuz.comli.com/weixin/weather/icon/cartoon.jpg", "url" =>"http://m.cnblogs.com/?u=txw1958");
break;
case "多图文":
$content = array();
$content[] = array("title"=>"多图文1标题", "description"=>"", "picurl"=>"http://discuz.comli.com/weixin/weather/icon/cartoon.jpg", "url" =>"http://m.cnblogs.com/?u=txw1958");
$content[] = array("title"=>"多图文2标题", "description"=>"", "picurl"=>"http://d.hiphotos.bdimg.com/wisegame/pic/item/f3529822720e0cf3ac9f1ada0846f21fbe09aaa3.jpg", "url" =>"http://m.cnblogs.com/?u=txw1958");
$content[] = array("title"=>"多图文3标题", "description"=>"", "picurl"=>"http://g.hiphotos.bdimg.com/wisegame/pic/item/18cb0a46f21fbe090d338acc6a600c338644adfd.jpg", "url" =>"http://m.cnblogs.com/?u=txw1958");
break;
case "音乐":
$content = array("title"=>"最炫民族风", "description"=>"歌手：凤凰传奇", "musicurl"=>"http://121.199.4.61/music/zxmzf.mp3", "hqmusicurl"=>"http://121.199.4.61/music/zxmzf.mp3");
break;
default:
$content = date("y-m-d h:i:s",time());
break;
}
if(is_array($content)){
if (isset($content[0]['picurl'])){
$result = $this->transmitnews($object, $content);
}else if (isset($content['musicurl'])){
$result = $this->transmitmusic($object, $content);
}
}else{
$result = $this->transmittext($object, $content);
}
return $result;
}
private function receiveimage($object)
{
$content = array("mediaid"=>$object->mediaid);
$result = $this->transmitimage($object, $content);
return $result;
}
private function receivelocation($object)
{
$content = "你发送的是位置，纬度为：".$object->location_x."；经度为：".$object->location_y."；缩放级别为：".$object->scale."；位置为：".$object->label;
$result = $this->transmittext($object, $content);
return $result;
}
private function receivevoice($object)
{
if (isset($object->recognition) && !empty($object->recognition)){
$content = "你刚才说的是：".$object->recognition;
$result = $this->transmittext($object, $content);
}else{
$content = array("mediaid"=>$object->mediaid);
$result = $this->transmitvoice($object, $content);
}
return $result;
}
private function receivevideo($object)
{
$content = array("mediaid"=>$object->mediaid, "thumbmediaid"=>$object->thumbmediaid, "title"=>"", "description"=>"");
$result = $this->transmitvideo($object, $content);
return $result;
}
private function receivelink($object)
{
$content = "你发送的是链接，标题为：".$object->title."；内容为：".$object->description."；链接地址为：".$object->url;
$result = $this->transmittext($object, $content);
return $result;
}
private function transmittext($object, $content)
{
$texttpl = "<xml>
<tousername><![cdata[%s]]></tousername>
<fromusername><![cdata[%s]]></fromusername>
<createtime>%s</createtime>
<msgtype><![cdata[text]]></msgtype>
<content><![cdata[%s]]></content>
</xml>";
$result = sprintf($texttpl, $object->fromusername, $object->tousername, time(), $content);
return $result;
}
private function transmitimage($object, $imagearray)
{
$itemtpl = "<image>
<mediaid><![cdata[%s]]></mediaid>
</image>";
$item_str = sprintf($itemtpl, $imagearray['mediaid']);
$texttpl = "<xml>
<tousername><![cdata[%s]]></tousername>
<fromusername><![cdata[%s]]></fromusername>
<createtime>%s</createtime>
<msgtype><![cdata[image]]></msgtype>
$item_str
</xml>";
$result = sprintf($texttpl, $object->fromusername, $object->tousername, time());
return $result;
}
private function transmitvoice($object, $voicearray)
{
$itemtpl = "<voice>
<mediaid><![cdata[%s]]></mediaid>
</voice>";
$item_str = sprintf($itemtpl, $voicearray['mediaid']);
$texttpl = "<xml>
<tousername><![cdata[%s]]></tousername>
<fromusername><![cdata[%s]]></fromusername>
<createtime>%s</createtime>
<msgtype><![cdata[voice]]></msgtype>
$item_str
</xml>";
$result = sprintf($texttpl, $object->fromusername, $object->tousername, time());
return $result;
}
private function transmitvideo($object, $videoarray)
{
$itemtpl = "<video>
<mediaid><![cdata[%s]]></mediaid>
<thumbmediaid><![cdata[%s]]></thumbmediaid>
<title><![cdata[%s]]></title>
<description><![cdata[%s]]></description>
</video>";
$item_str = sprintf($itemtpl, $videoarray['mediaid'], $videoarray['thumbmediaid'], $videoarray['title'], $videoarray['description']);
$texttpl = "<xml>
<tousername><![cdata[%s]]></tousername>
<fromusername><![cdata[%s]]></fromusername>
<createtime>%s</createtime>
<msgtype><![cdata]></msgtype>
$item_str
</xml>";
$result = sprintf($texttpl, $object->fromusername, $object->tousername, time());
return $result;
}
private function transmitnews($object, $newsarray)
{
if(!is_array($newsarray)){
return;
}
$itemtpl = "    <item>
<title><![cdata[%s]]></title>
<description><![cdata[%s]]></description>
<picurl><![cdata[%s]]></picurl>
<url><![cdata[%s]]></url>
</item>
";
$item_str = "";
foreach ($newsarray as $item){
$item_str .= sprintf($itemtpl, $item['title'], $item['description'], $item['picurl'], $item['url']);
}
$newstpl = "<xml>
<tousername><![cdata[%s]]></tousername>
<fromusername><![cdata[%s]]></fromusername>
<createtime>%s</createtime>
<msgtype><![cdata[news]]></msgtype>
<content><![cdata[]]></content>
<articlecount>%s</articlecount>
<articles>
$item_str</articles>
</xml>";
$result = sprintf($newstpl, $object->fromusername, $object->tousername, time(), count($newsarray));
return $result;
}
private function transmitmusic($object, $musicarray)
{
$itemtpl = "<music>
<title><![cdata[%s]]></title>
<description><![cdata[%s]]></description>
<musicurl><![cdata[%s]]></musicurl>
<hqmusicurl><![cdata[%s]]></hqmusicurl>
</music>";
$item_str = sprintf($itemtpl, $musicarray['title'], $musicarray['description'], $musicarray['musicurl'], $musicarray['hqmusicurl']);
$texttpl = "<xml>
<tousername><![cdata[%s]]></tousername>
<fromusername><![cdata[%s]]></fromusername>
<createtime>%s</createtime>
<msgtype><![cdata[music]]></msgtype>
$item_str
</xml>";
$result = sprintf($texttpl, $object->fromusername, $object->tousername, time());
return $result;
}
private function logger($log_content)
{
if(isset($_server['http_appname'])){   //sae
sae_set_display_errors(false);
sae_debug($log_content);
sae_set_display_errors(true);
}else if($_server['remote_addr'] != "127.0.0.1"){ //local
$max_size = 10000;
$log_filename = "log.xml";
if(file_exists($log_filename) and (abs(filesize($log_filename)) > $max_size)){unlink($log_filename);}
file_put_contents($log_filename, date('h:i:s')." ".$log_content."\r\n", file_append);
}
}
}
?>