首先準備一個api.php文件 這個文件可以再微信開發平臺網站手冊里面下載到

需要配置的是token

微信測試地址

https://mp.weixin.QQ.com/debug/

<?php/**  * wechat php test  *///define your tokendefine("TOKEN", "這里寫你的token");$wechatObj = new wechatCallbackapiTest();$wechatObj->valid();class wechatCallbackapiTest{	public function valid()    {        $echoStr = $_GET["echostr"];        //valid signature , option        if($this->checkSignature()){        	echo $echoStr;        	exit;        }    }    public function responseMsg()    {		//get post data, May be due to the different environments		$postStr = $GLOBALS["HTTP_RAW_POST_DATA"];      	//extract post data		if (!empty($postStr)){                /* libxml_disable_entity_loader is to PRevent XML eXternal Entity Injection,                   the best way is to check the validity of xml by yourself */                libxml_disable_entity_loader(true);              	$postObj = simplexml_load_string($postStr, 'SimpleXMLElement', LIBXML_NOCDATA);                $fromUsername = $postObj->FromUserName;                $toUsername = $postObj->ToUserName;                $keyWord = trim($postObj->Content);                $time = time();                $textTpl = "<xml>							<ToUserName><![CDATA[%s]]></ToUserName>							<FromUserName><![CDATA[%s]]></FromUserName>							<CreateTime>%s</CreateTime>							<MsgType><![CDATA[%s]]></MsgType>							<Content><![CDATA[%s]]></Content>							<FuncFlag>0</FuncFlag>							</xml>";             				if(!empty( $keyword ))                {              		$msgType = "text";                	$contentStr = "Welcome to wechat world!";                	$resultStr = sprintf($textTpl, $fromUsername, $toUsername, $time, $msgType, $contentStr);                	echo $resultStr;                }else{                	echo "Input something...";                }        }else {        	echo "";        	exit;        }    }			private function checkSignature()	{        // you must define TOKEN by yourself        if (!defined("TOKEN")) {            throw new Exception('TOKEN is not defined!');        }                $signature = $_GET["signature"];        $timestamp = $_GET["timestamp"];        $nonce = $_GET["nonce"];        				$token = TOKEN;		$tmpArr = array($token, $timestamp, $nonce);        // use SORT_STRING rule		sort($tmpArr, SORT_STRING);		$tmpStr = implode( $tmpArr );		$tmpStr = sha1( $tmpStr );				if( $tmpStr == $signature ){			return true;		}else{			return false;		}	}}?>
然后配置你的服務器 
輸入你設置的token 配置完成就可以進行開發了
首先需要的幾個參數
首先你會擁有一個appID和appsecret
然后你需要設置你的接口配置
這里的url填寫你的最開始的那個文件路徑
token可以隨便寫
token填到第一個文件里面去
然后保存提交
提交之后便可以開始開發了 這里附上最基本的獲取用戶頭像和用戶名的代碼
新建一個文件weixin.php
以下有三個參數需要填寫
appid填寫你的appid
appsecret填寫你的appsecret
redirect_uri填寫你的回調域名
<meta charset="utf-8"><?php$appid='填寫你的appid';$appsecret='填寫你的appsecret';$redirect_uri='填寫你的域名地址/weixin.php';$code=isset($_GET['code'])?$_GET['code']:'';$url='https://api.weixin.qq.com/sns/oauth2/access_token?appid='.$appid.'&secret='.$appsecret.'&code='.$code.'&grant_type=authorization_code';//獲取html代碼function getSslPage($url) {$ch = curl_init();curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);curl_setopt($ch, CURLOPT_HEADER, false);curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);curl_setopt($ch, CURLOPT_URL, $url);curl_setopt($ch, CURLOPT_REFERER, $url);curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);$result = curl_exec($ch);curl_close($ch);return $result;}$user=getSslPage($url);// $user=file_get_contents($url);// echo $user;exit;$access_token=explode('access_token":"',$user)[1];$access_token=explode('"',$user)[0];//access_token$openid=explode('"openid":"',$user)[1];$openid=explode('"',$openid)[0];//openid$refresh_token=explode('refresh_token":"',$user)[1];$refresh_token=explode('"',$refresh_token)[0];//refresh_token$aa=json($user);echo $aa->access_token;// $user_info_url='https://api.weixin.qq.com/sns/oauth2/access_token?appid='.$appid.'&secret='.$appsecret.'&code='.$code.'&grant_type=authorization_code';$use_url='https://api.weixin.qq.com/sns/oauth2/refresh_token?appid='.$appid.'&grant_type=refresh_token&refresh_token='.$refresh_token;$user_cont=getSslPage($use_url);// echo $user_cont;exit;$access_token=explode('access_token":"',$user_cont)[1];$access_token=explode('"',$access_token)[0];//access_token$openid=explode('"openid":"',$user_cont)[1];$openid=explode('"',$openid)[0];//openid$refresh_token=explode('refresh_token":"',$user_cont)[1];$refresh_token=explode('"',$refresh_token)[0];//refresh_token$user_info='https://api.weixin.qq.com/sns/userinfo?access_token='.$access_token.'&openid='.$openid.'&lang=zh_CN;';$text=getSslPage($user_info);$arr=json_decode($text,true);echo '網名：'.$arr['nickname'].'</br>';echo '頭像：<img src='.$arr['headimgurl'].'></br>';然后微信訪問這個weixin.php文件就能看到你的頭像和網名了