PHP获取小程序二维码，可带参数

秒速五厘米 2021-08-31 19:06 439阅读 0赞

PHP部分代码

//生成推广 小程序二维码
    public function huoqu_code()
    { 
    	$uid = input('uid');
        if(empty($uid)){ 
            return json(array('code'=>'0','Status'=>'invalid parameter','Msg'=>'参数错误'));
        }
    	$this_user = Db::name('user')->where(array( 'id' => $uid))->find();
    	$tuiguang_code = '';
    	if($this_user['tuiguang_code']){ 
    		$tuiguang_code = $this_user['tuiguang_code'];
    	}else{ 
    		$access_token= $this->huoqu_accesstoken();
    		$url = "https://api.weixin.qq.com/wxa/getwxacodeunlimit?access_token=" . $access_token['access_token'];
    		$post_data =
    			array(
    				'page' => 'pages/index/index', //扫码跳转页面
    				'scene' => $this_user['invite_code'], //用户邀请码
    			);
    		$post_data = json_encode($post_data);
    		$data = $this->send_post($url, $post_data);
    		$result = $this->data_uri($data, 'image/png');
    		db('user')->where(array('id'=>$uid))->update(array('tuiguang_code' => $result));
    		$tuiguang_code = $result;
    	}
    	
    	//数据封装到数组
        $data = array(
            'tuiguang_code' => $tuiguang_code,
        );
        return json(array('code'=>'1','Status'=>'success','Msg'=>'数据获取成功','data'=>$data));
    }
    
    //获取accesstoken
    private function huoqu_accesstoken()
    { 
    	$website = Db::name('website')->find();
    	$appid = $website['xcx_appid'];//小程序appid
    	$appsecret = $website['xcx_appsecret'];//小程序appsecret
    	$url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=".$appid."&secret=" . $appsecret;
    	$access_token = $this->curl_post($url);
    	$access_token = json_decode($access_token['result'], true);
    	return $access_token;
    }
    
    /** * 发起curl请求 * $url 访问路径 * $params 参数，该数组多于1个，表示为POST * $expire 请求超时时间 * $extend 请求伪造包头参数 * @return array 返回的为一个请求状态，一个内容 */
    private function curl_post($url, $params = array(), $expire = 0, $extend = array())
    { 
    	if (empty($url)) { 
    		return array('code' => '0');
    	}
    	$_curl = curl_init();
    	$_header = array('Accept-Language: zh-CN','Connection: Keep-Alive','Cache-Control: no-cache');
    	// 只要第二个参数传了值之后，就是POST的
    	if (!empty($params)) { 
    		curl_setopt($_curl, CURLOPT_POSTFIELDS, http_build_query($params));
    		curl_setopt($_curl, CURLOPT_POST, true);
    	}
    	if (substr($url, 0, 8) == 'https://') { 
    		curl_setopt($_curl, CURLOPT_SSL_VERIFYPEER, FALSE);
    		curl_setopt($_curl, CURLOPT_SSL_VERIFYHOST, FALSE);
    	}
    	curl_setopt($_curl, CURLOPT_URL, $url);
    	curl_setopt($_curl, CURLOPT_RETURNTRANSFER, true);
    	curl_setopt($_curl, CURLOPT_USERAGENT, 'API PHP CURL');
    	curl_setopt($_curl, CURLOPT_HTTPHEADER, $_header);
    	if ($expire > 0) { 
    		curl_setopt($_curl, CURLOPT_TIMEOUT, $expire); // 处理超时时间
    		curl_setopt($_curl, CURLOPT_CONNECTTIMEOUT, $expire); // 建立连接超时时间
    	}
    	// 额外的配置
    	if (!empty($extend)) { 
    		curl_setopt_array($_curl, $extend);
    	}
    	$result['result'] = curl_exec($_curl);
    	$result['code'] = curl_getinfo($_curl, CURLINFO_HTTP_CODE);
    	$result['info'] = curl_getinfo($_curl);
    	if ($result['result'] === false) { 
    		$result['result'] = curl_error($_curl);
    		$result['code'] = -curl_errno($_curl);
    	}
    	curl_close($_curl);
    	return $result;
    }
    
    /** * 消息推送http * @param $url * @param $post_data * @return bool|string */
    private function send_post($url, $post_data)
    { 
    	$options = array(
    		'http' => array(
    			'method' => 'POST',
    			'header' => 'Content-type:application/json',
    			//header 需要设置为 JSON
    			'content' => $post_data,
    			'timeout' => 60
    			//超时时间
    		)
    	);
    	$context = stream_context_create($options);
    	$result = file_get_contents($url, false, $context);
    	return $result;
    }
    
    //二进制转图片image/png
    private function data_uri($contents, $mime)
    { 
    	$base64 = base64_encode($contents);
    	return ('data:' . $mime . ';base64,' . $base64);
    }