CURL操作类:
<?php
namespace app\common;
class curl{
public static function wxcurl($getUrl){
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $getUrl);
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE);
$data = curl_exec($ch);
$response = json_decode($data,true);
return $response;
}
}
PHP类
直接写入的是缓存，如果你本地不支持redis缓存 需要修改存储方式
<?php
namespace app\common;
use app\common\Curl;
/**
* @property secret
*/
class Wechat{
private $appid;
private $secret;
private $url;
private $urlaccesstoken="https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential";
private $urljsapi_ticket = "https://api.weixin.qq.com/cgi-bin/ticket/getticket?type=jsapi&access_token=";
function __construct($appid,$secret,$url){
$this->appid=$appid;
$this->secret =$secret;
$this->url = $url;
}
private function getToken(){
$access_token = json_decode(\Yii::$app->redis->get('wechat_access_token'),true);
$effective = false;
if(!$access_token){
$effective=true;
}else{
//验证时间
if(time() -$access_token['times'] > 7200){
$effective=true;
}
}
if($effective){
$oauthUrl = $this->urlaccesstoken."&appid=".$this->appid."&secret=".$this->secret;
$codeinfo = curl::wxcurl($oauthUrl);
$access_token = ["times"=>time(),"access_token"=>$codeinfo['access_token']];
\Yii::$app->redis->set('wechat_access_token',json_encode($access_token,true));
}
return $access_token['access_token'];
}
private function getTicket(){
$jsapi_ticket =json_decode(\Yii::$app->redis->get('wechat_jsapi_ticket'),true);
$effective = false;
if(!$jsapi_ticket){
$effective=true;
}else{
//验证时间
if(time() -$jsapi_ticket['times'] > 7200){
$effective=true;
}
}
if($effective){
$access_token = $this->getToken();
$oauthUrl = $this->urljsapi_ticket.$access_token;
$codeinfo = curl::wxcurl($oauthUrl);
$jsapi_ticket = ["times"=>time(),"ticket"=>$codeinfo['ticket']];
\Yii::$app->redis->set('wechat_access_ticket',json_encode($jsapi_ticket,true));
}
return $jsapi_ticket['ticket'];
}
private function nonceStr($length=32){
$chars = "abcdefghijklmnopqrstuvwxyz0123456789";
$str ="";
for ( $i = 0; $i < $length; $i++ ) {
$str.= substr($chars, mt_rand(0, strlen($chars)-1), 1);
}
return $str;
}
private function signature($Parameters){
//拼接参数
$arg = "";
foreach($Parameters as $key => $val)
{
$arg.=$key."=".$val."&";
}
//去掉最后一个&字符
$arg = trim($arg,'&');
if(get_magic_quotes_gpc())
{
$arg = stripslashes($arg);
}
return sha1($arg);
}
private function getAppid(){
return $this->appid;
}
function getWechatJsConfig(){
$time = time();
$Parameters = [
"jsapi_ticket"=>$this->getTicket(),
"noncestr"=>$this->nonceStr(),
"timestamp"=>"$time",
"url"=>$this->url,
];
$return['appId'] = $this->getAppid();
$return['timestamp'] = $Parameters['timestamp'];
$return['nonceStr'] = $Parameters['noncestr'];
$return['signature'] = $this->signature($Parameters);
return $return;
}
}
返回格式:
appId:"xxxxxxxxx",
nonceStr:"xxxxxxxxxxx",
signature:"xxxxxxxxxx",
timestamp:"1522083380",
JS页面
wx.config({
debug: true,
appId:res.appId,
timestamp:res.timestamp,
nonceStr:res.nonceStr,
signature:res.signature,
jsApiList: [
'chooseImage',//拍照或从手机相册中选图接口
'onMenuShareTimeline',
'previewImage',//预览图片接口
'uploadImage',//上传图片接口
'downloadImage'//下载图片接口
]});