存储是以.txt的方式存储token值的 先上代码
<?php require_once("file_cache.php"); class WeixinUtil{ private $appId = 'appId '; private $appSecret = 'appSecret '; //获取AccessToken public function getAccessToken(){ $wx_access_token_cache_key = 'wx_access_token'; $cache = new FileCache('./access_token.txt');//存储的本地位置 $token = $cache->get($wx_access_token_cache_key);//去文件中获取token if (!$token){//没有的话就创建新的 $url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=".$this->appId."&secret=".$this->appSecret; $token = $this->https_curl_json($url,null); $cache->set($wx_access_token_cache_key, $token, time()+7000); } $token = json_decode($token); $token = $token->access_token; return $token; } /* 发送json格式的数据，到api接口*/ public function https_curl_json($url,$data){ $headers = array("Content-type: application/json;charset=UTF-8","Accept: application/json","Cache-Control: no-cache", "Pragma: no-cache"); $curl = curl_init(); curl_setopt($curl, CURLOPT_URL, $url); curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, FALSE); curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, FALSE); if (!empty($data)){ curl_setopt($curl, CURLOPT_POST, 1); curl_setopt($curl, CURLOPT_POSTFIELDS,$data); } curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1); curl_setopt($curl, CURLOPT_HTTPHEADER, $headers ); $output = curl_exec($curl); if (curl_errno($curl)) { echo 'Errno'.curl_error($curl);//捕抓异常 } curl_close($curl); return $output; } } ?>另一个类 用来进行文件操作
<?php //该类用来配合WeixinUtil.php类 进行token的文件操作 class FileCache{ private $cache_file; private function load(){ if(file_exists($this->cache_file)){ $content = file_get_contents($this->cache_file); if (strlen($content) > 0){ $data = json_decode($content); return $data; } } return array(); } private function save($data){ $content = json_encode($data); return file_put_contents($this->cache_file, $content); } public function __construct($filename) { $this->cache_file = $filename; } public function get($key){ $data = $this->load(); foreach($data as $item){ if ($item->key == $key){ if ($item->expire_time > time()){ return $item->value; } break; } } return NULL; } public function set($key, $value, $expire_time=NULL){ $data = $this->load(); $obj = NULL; foreach($data as $item){ if ($item->key == $key){ $obj = $item; $obj->value = $value; if ($expire_time != NULL){ $obj->expire_time = $expire_time; } break; } } if ($obj == NULL){ $obj = new CacheItem($key, $value, $expire_time); array_push($data, $obj); } return $this->save($data); } } class CacheItem{ public $key; public $value; public $expire_time; public function __construct($key, $value, $expire_time) { $this->key = $key; $this->value = $value; $this->expire_time = $expire_time; } } ?>最后 测试类
<?php include "WeixinUtil.php"; $wx = new WeixinUtil(); echo $wx->getAccessToken();第二个类来自https://www.cnblogs.com/hydonlee/p/5419063.html
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18/9/11
access_token存储在DB里,参考文章↓
https://blog.csdn.net/sct_t/article/details/53002611
