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这篇文章主要为大家分享一个完整的微信开发php代码，具有一定的参考价值，感兴趣的小伙伴们可以参考一下
本文实例为大家分享了微信开发php代码，供大家参考，具体内容如下
<?php
//封装成一个微信接口类
class WeixinApi
{
private $appid;
private $appsecret;
//构造方法 初始化赋值
public function construct($appid="",$appsecret="")
{
$this->appid = $appid;
$this->appsecret = $appsecret;
}
//验证服务器地址有效性
public function valid()
{
if($this->checkSignature())
{
$echostr = $_GET['echostr'];//随机的字符串
return $echostr;
}
else
{
return "Error";
}
}
//检查签名
private function checkSignature()
{
//一、接收微信服务器GET方式提交过来的4个参数数据
$signature = $_GET['signature'];//微信加密签名
$timestamp = $_GET['timestamp'];//时间戳
$nonce = $_GET['nonce'];//随机数
//二、加密/校验过程
// 1. 将token、timestamp、nonce三个参数进行字典序排序；
// bool sort ( array &$array [, int $sort_flags = SORT_REGULAR ] ) 对数组排序
$tmpArr = array(TOKEN,$timestamp,$nonce);//将上面三个参数放到一个数组里面
sort($tmpArr,SORT_STRING);
// 2. 将三个参数字符串拼接成一个字符串进行sha1加密；
$tmpStr = implode($tmpArr); //将数组转化成字符串
$signatureStr = sha1($tmpStr);
// 3. 开发者获得加密后的字符串与signature对比。
if($signatureStr == $signature)
{
return true;
}
else
{
return false;
}
}
//响应消息
public function responseMsg()
{
//接收微信服务器发送POST请求到开发者服务器，携带的XML数据包
$postData = $GLOBALS['HTTP_RAW_POST_DATA'];
//处理xml数据包
$xmlObj = simplexml_load_string($postData,"SimpleXMLElement",LIBXML_NOCDATA);
if(!$xmlObj)
{
echo "";
exit;
}
//获取接收消息中的参数内容
$toUserName = $xmlObj->ToUserName;//开发者微信号
$fromUserName = $xmlObj->FromUserName;//发送方的微信号（openid）
$msgType = $xmlObj->MsgType;//消息类型
switch ($msgType) {
//接收文本消息
case 'text':
//获取文本消息的关键字
$keyword = $this->receiveText($xmlObj);
//进行关键字回复
switch($keyword)
{
case "w001":
case "W001":
return $this->replyText($xmlObj,"Hi~你好");
break;
case "w002":
case "W002":
return $this->replyText($xmlObj,"Hi~尴尬了");
break;
case "笑话":
$key = "dee9ebc68fd5a61f67286063932afe56";
return $this->replyNews($xmlObj,$this->joke_text($key));
break;
default:
$key = "dee9ebc68fd5a61f67286063932afe56";
return $this->replyNews($xmlObj,$this->joke_text($key));
break;
}
break;
//接收图片消息
case 'image':
return $this->receiveImage($xmlObj);
break;
//接收事件推送
case 'event':
return $this->receiveEvent($xmlObj);
break;
}
}
//接收事件推送
public function receiveEvent($obj)
{
//接收事件类型
$event = $obj->Event;
switch ($event)
{
//关注事件
case 'subscribe':
//下发欢迎消息
$newsArr = array(
array(
"Title"=>"做有价值的头条资讯！",
"Description"=>"把握价值头条资讯，日常更加有谈资呢！",
"PicUrl"=>"http://jober.applinzi.com/news/img/news.png",
"Url"=>"http://jober.applinzi.com/news/index.php"
)
);
//回复图文消息
return $this->replyNews($obj,$newsArr);
break;
//取消关注事件
case 'unsubscribe':
//账号的解绑操作等等
break;
//自定义菜单推送CLICK事件
case 'CLICK':
$eventKey = $obj->EventKey;//获取事件KEY值，与自定义菜单接口中KEY值对应
switch ($eventKey)
{
case 'old':
$weixinArr = $this->history("da675ebc6a0d72920dca3f676122a693");
$weixinArr = array_slice($weixinArr, 0,5);
$newsArr = array();
foreach ($weixinArr as $item)
{
$newsArr = array(array(
"Title" => $item['Description'],
"Description" => $item['Title'],
"PicUrl" => "http://1.jober.applinzi.com/news/img/2.jpg",
"Url" => "http://www.todayonhistory.com/"
));
}
return $this->replyNews($obj,$newsArr);
break;
}
break;
}
}
//接收文本消息
public function receiveText($obj)
{
$content = trim($obj->Content);//文本消息的内容
return $content;
}
//接收图片消息
public function receiveImage($obj)
{
$picUrl = $obj->PicUrl;//图片的链接
$mediaId = $obj->MediaId;//图片消息媒体id
return $this->replyImage($obj,$mediaId);
}
//回复图片消息
public function replyImage($obj,$mediaId)
{
$replyXml = "<xml>
<ToUserName><![CDATA[%s]]></ToUserName>
<FromUserName><![CDATA[%s]]></FromUserName>
<CreateTime>%s</CreateTime>
<MsgType><![CDATA[image]]></MsgType>
<Image>
<MediaId><![CDATA[%s]]></MediaId>
</Image>
</xml>";
return sprintf($replyXml,$obj->FromUserName,$obj->ToUserName,time(),$mediaId);
}
//回复文本消息
public function replyText($obj,$content)
{
$replyXml = "<xml>
<ToUserName><![CDATA[%s]]></ToUserName>
<FromUserName><![CDATA[%s]]></FromUserName>
<CreateTime>%s</CreateTime>
<MsgType><![CDATA[text]]></MsgType>
<Content><![CDATA[%s]]></Content>
</xml>";
return sprintf($replyXml,$obj->FromUserName,$obj->ToUserName,time(),$content);
}
//回复图文消息
public function replyNews($obj,$newsArr)
{
//判断是否为数组类型
if(!is_array($newsArr))
{
return;
}
// 判断数组是否为空数组
if(!$newsArr)
{
return;
}
$itemStr = "";
//定义item模板
$itemXml = "<item>
<Title><![CDATA[%s]]></Title>
<Description><![CDATA[%s]]></Description>
<PicUrl><![CDATA[%s]]></PicUrl>
<Url><![CDATA[%s]]></Url>
</item>";
foreach($newsArr as $item)