我已将下面的代码集成到控制器中

控制器代码

$newDate=Date('m-d-Y H:i:s');

$test_str=$user->us_name. ' Clocked at '.$newDate;
$res = array();

$res['data']['title'] = $user->us_name.' - Clocked In';
$res['data']['is_background'] = "TRUE";
$res['data']['message'] = $test_str;
$res['data']['image'] = 'http://api.androidhive.info/images/minion.jpg';
$res['data']['payload'] = 'individual';
$res['data']['timestamp'] = date('Y-m-d G:i:s');
$res['data']['act_tab'] = 0;


$cur_id1=$this->db->query("Select token from devices")->result();

foreach($cur_id1 as $cur_id) {

    $fields = array('to' => $cur_id->token,'data' => $res);
    $this->notif_model->sendPushNotification($fields);
}

型号代码

function sendPushNotification($fields) {


        // Set POST variables
        $url = 'https://fcm.googleapis.com/fcm/send';

        $headers = array(
            'Authorization: key=MyServerKey','Content-Type: application/json'
        );
        // Open connection
        $ch = curl_init();

        // Set the url,number of POST vars,POST data
        curl_setopt($ch,CURLOPT_URL,$url);
        curl_setopt($ch,CURLOPT_POST,true);
        curl_setopt($ch,CURLOPT_HTTPHEADER,$headers);
        curl_setopt($ch,CURLOPT_RETURNTRANSFER,true);

        // Disabling SSL Certificate support temporarly
        curl_setopt($ch,CURLOPT_SSL_VERIFYPEER,false);

        curl_setopt($ch,CURLOPT_POSTFIELDS,json_encode($fields));

        // Execute post
        $result = curl_exec($ch);
        if ($result === FALSE) {
            die('Curl Failed: ' . curl_error($ch));
        }

        // Close connection
        curl_close($ch);

        return $result;
    }

在运行此时有时我会收到错误

Curl Failed: OpenSSL SSL_connect: SSL_ERROR_SYSCALL in connection to fcm.googleapis.com:443