本文实例为大家分享了php微信图片回复功能的具体代码，供大家参考，具体内容如下

/**

*wechatphptest

*/

//defineyourtoken

define("TOKEN","weixin");

$wechatObj=newwechatCallbackapiTest();

//$wechatObj->valid();

$wechatObj->responseMsg();

classwechatCallbackapiTest

{

publicfunctionvalid()

{

$echoStr=$_GET["echostr"];

//validsignature,option

if($this->checkSignature()){

echo$echoStr;

exit;

}

}

publicfunctionresponseMsg()

{

//getpostdata,Maybeduetothedifferentenvironments

$postStr=$GLOBALS["HTTP_RAW_POST_DATA"];

//extractpostdata

if(!empty($postStr)){

$postObj=simplexml_load_string($postStr,'SimpleXMLElement',LIBXML_NOCDATA);

$fromUsername=$postObj->FromUserName;

$toUsername=$postObj->ToUserName;

$type=$postObj->MsgType;

$customrevent=$postObj->Event;

$keyword=trim($postObj->Content);

$time=time();

$textTpl="

%s

0

";

if($type=="event"and$customrevent=="subscribe"){

$contentStr="33333333333";

$msgType="text";

$resultStr=sprintf($textTpl,$fromUsername,$toUsername,$time,$msgType,$contentStr);

echo$resultStr;

}

if($type=="image"){

$contentStr="你的图片很棒！";

$msgType="text";

$resultStr=sprintf($textTpl,$fromUsername,$toUsername,$time,$msgType,$contentStr);

echo$resultStr;

}

if(!empty($keyword))

{

$msgType="text";

if($keyword=="1"){

$contentStr="333";}

if($keyword=="2"){

$contentStr="444

if($keyword=="3"){

$contentStr="11";}

$resultStr=sprintf($textTpl,$fromUsername,$toUsername,$time,$msgType,$contentStr);

echo$resultStr;

}else{

echo"Inputsomething...";

}

}else{

echo"";

exit;

}

}

privatefunctioncheckSignature()

{

$signature=$_GET["signature"];

$timestamp=$_GET["timestamp"];

$nonce=$_GET["nonce"];

$token=TOKEN;

$tmpArr=array($token,$timestamp,$nonce);

sort($tmpArr);

$tmpStr=implode($tmpArr);

$tmpStr=sha1($tmpStr);

if($tmpStr==$signature){

returntrue;

}else{

returnfalse;

}

}

}

?>

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