dnsmgr/app/lib/mail/Sendcloud.php

<?php

namespace app\lib\mail;

class Sendcloud
{
    private $apiUser;
    private $apiKey;

    public function __construct($apiUser, $apiKey)
    {
        $this->apiUser = $apiUser;
        $this->apiKey = $apiKey;
    }
    public function send($to, $sub, $msg, $from, $from_name)
    {
        if (empty($this->apiUser) || empty($this->apiKey)) return false;
        $url = 'http://api.sendcloud.net/apiv2/mail/send';
        $data = array(
            'apiUser' => $this->apiUser,
            'apiKey' => $this->apiKey,
            'from' => $from,
            'fromName' => $from_name,
            'to' => $to,
            'subject' => $sub,
            'html' => $msg
        );
        $ch = curl_init($url);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($ch, CURLOPT_TIMEOUT, 10);
        curl_setopt($ch, CURLOPT_POST, 1);
        curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
        $json = curl_exec($ch);
        $arr = json_decode($json, true);
        if ($arr['statusCode'] == 200) {
            return true;
        } else {
            return implode("\n", $arr['message']);
        }
    }
}