网站首页 博客 微信获取AccessToken和网页签名
类定义如下:
<?php namespace app\components; use Yii; class WxtokenHelper{ private $appId; private $appSecret; private $cachetime = 7000; //缓存时间 public function __construct($appId, $appSecret) { $this->appId = $appId; $this->appSecret = $appSecret; } //获取AccessToken public function getAccessToken(){ $cachekey = md5("wxapp_". $this->appId ."_accesstoken"); //$cachecon = Yii::$app->cache->d.e.l.e.t.e($cachekey); $cachecon = Yii::$app->cache->get($cachekey); if(!empty($cachecon)){ //如果有缓存 $jsonobj = json_decode($cachecon); return $jsonobj->access_token; } $target = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=". $this->appId ."&secret=". $this->appSecret; $result = file_get_contents($target); if(empty($result)){ return 'failed'; } //echo $result;die(); $jsonobj = json_decode($result); if($jsonobj->errcode!=0){ return 'failed'; } $cachecon = $result; Yii::$app->cache->set($cachekey, $cachecon, $this->cachetime); return $jsonobj->access_token; } //获取JsApiTicket public function getJsApiTicket(){ $cachekey = md5("wxapp_". $this->appId ."_jsapiticket"); //$cachecon = Yii::$app->cache->d.e.l.e.t.e($cachekey); $cachecon = Yii::$app->cache->get($cachekey); if(!empty($cachecon)){ //如果有缓存 $jsonobj = json_decode($cachecon); return $jsonobj->ticket; } $access_token = $this->getAccessToken(); $target = "https://api.weixin.qq.com/cgi-bin/ticket/getticket?access_token=". $access_token ."&type=jsapi"; $result = file_get_contents($target); if(empty($result)){ return 'failed'; } //echo $result;die(); $jsonobj = json_decode($result); if($jsonobj->errcode!=0){ return 'failed'; } $cachecon = $result; Yii::$app->cache->set($cachekey, $cachecon, $this->cachetime); return $jsonobj->ticket; } //获取网页签名 public function getSignPackage($url) { $jsapiTicket = $this->getJsApiTicket(); $timestamp = time(); $nonceStr = $this->createNonceStr(); // 这里参数的顺序要按照 key 值 ASCII 码升序排序 $string = "jsapi_ticket=$jsapiTicket&noncestr=$nonceStr×tamp=$timestamp&url=$url"; $signature = sha1($string); $signPackage = array( "appId" => $this->appId, "noncestr" => $nonceStr, "timestamp" => $timestamp, "url" => $url, "signature" => $signature, ); return $signPackage; } public function createNonceStr($length = 16) { $chars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"; $str = ""; for ($i = 0; $i < $length; $i++) { $str .= substr($chars, mt_rand(0, strlen($chars) - 1), 1); } return $str; } //POST发送数据 public function sendPostData($url, $port, $arrPostInfo){ $ch = curl_init(); if(stripos($url,"https://")!==FALSE){ curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE); curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false); curl_setopt($ch, CURLOPT_SSLVERSION, 1); //CURL_SSLVERSION_TLSv1 } if(!empty($port) && is_numeric($port)==true){ curl_setopt($ch, CURLOPT_PORT, $port); } curl_setopt($ch, CURLOPT_URL, $url); curl_setopt($ch, CURLOPT_HEADER, false); curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); curl_setopt($ch, CURLOPT_POST, true); curl_setopt($ch, CURLOPT_POSTFIELDS, $arrPostInfo); $result = curl_exec($ch); curl_close($ch); return $result; } //发送Json数据 public function sendJsonData($url, $port, $json){ $ch = curl_init(); if(stripos($url,"https://")!==FALSE){ curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE); curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false); curl_setopt($ch, CURLOPT_SSLVERSION, 1); //CURL_SSLVERSION_TLSv1 } if(!empty($port) && is_numeric($port)==true){ curl_setopt($ch, CURLOPT_PORT, $port); } curl_setopt($ch, CURLOPT_URL, $url); curl_setopt($ch, CURLOPT_HEADER, true); curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); curl_setopt($ch, CURLOPT_POST, true); curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-Type: application/json; encoding=utf-8','Content-Length: ' . strlen($json))); curl_setopt($ch, CURLOPT_POSTFIELDS, $json); $result = curl_exec($ch); curl_close($ch); return $result; } } ?>