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微信公众号缓存ACCESS_TOKEN的PHP代码

    博客分类：
  • PHP
 
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<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>活动会议签到</title>
</head>
<body>
<?php
function curlPost($url,$data=""){   
    $ch = curl_init();
    $opt = array(
			CURLOPT_URL     => $url,            
            CURLOPT_HEADER  => 0,
			CURLOPT_POST    => 1,
            CURLOPT_POSTFIELDS      => $data,
            CURLOPT_RETURNTRANSFER  => 1,
            CURLOPT_TIMEOUT         => 20
    );
    $ssl = substr($url,0,8) == "https://" ? TRUE : FALSE;
    if ($ssl){
        $opt[CURLOPT_SSL_VERIFYHOST] = 2;
        $opt[CURLOPT_SSL_VERIFYPEER] = FALSE; //FALSE返回对象，TRUE返回数组
    }
    curl_setopt_array($ch,$opt);
    $data = curl_exec($ch);
    curl_close($ch);
    return $data;
}

function accessToken() {
  $tokenFile = "./access_token.txt";
  $data = json_decode(file_get_contents($tokenFile));
  if ($data->expire_time < time() or !$data->expire_time){
	  $appid = "替换成你的appid";
	  $appsecret = "替换成你的appid";
	  $url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=$appid&secret=$appsecret";
	  $res = getJson($url);
	  $access_token = $res['access_token'];
	  if($access_token) {
		  $data_new['expire_time'] = time() + 7000;
		  $data_new['access_token'] = $access_token;
		  $fp = fopen($tokenFile, "w");
		  fwrite($fp, json_encode($data_new));
		  fclose($fp);
	  }
  } else {
		$access_token = $data->access_token;
  }
   return $access_token;
}

function getJson($url){
	$ch = curl_init();
	curl_setopt($ch, CURLOPT_URL, $url);
	curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
	curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE); 
	curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
	$output = curl_exec($ch);
	curl_close($ch);
	return json_decode($output,TRUE); //返回数组式json
}

$ACCESS_TOKEN=accessToken();
$Url="https://api.weixin.qq.com/shakearound/user/getshakeinfo?access_token=$ACCESS_TOKEN";
$ticket=$_GET["ticket"];
$data='{"ticket":"'.$ticket.'","need_poi":0}';
$res = curlPost($Url,$data);
$openid=json_decode($res)->data->openid;
$fl=$_GET["fl"];
$url = "替换成你的网址/qd.asp?fl=". $fl ."&wxid=".$openid;
echo "<script language='javascript' type='text/javascript'>";  
echo "window.location.href='$url'";  
echo "</script>";
?>
</body>
</html>

 

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