通过apple 的apns推送信息

 
<?php
class phpApns
{
    /**
     * @var string 证书地址
     */
    protected $cert_path;
  
    /**
     * @var string 使用的密码
     */
    protected $password;
  
    /**
     * @var bool 是否是沙箱
     */
    protected $is_sandbox;
  
    /**
     * @var string 正式推送服务器
     */
    protected $publish_uri = 'ssl://gateway.push.apple.com:2195';
  
    /**
     * @var string 沙箱推送服务器
     */
    protected $sandbox_uri = 'ssl://gateway.sandbox.push.apple.com:2195';
  
    /**
     * @param string $cert_path 使用的证书地址
     * @param bool $is_sandbox 是否是沙箱
     */
    public function __construct($cert_path = '', $password, $is_sandbox = false)
    {
        if (false == is_file($cert_path))
        {
            die("证书文件不存在!");
        }
  
        $this->cert_path  = $cert_path;
        $this->password   = $password;
        $this->is_sandbox = $is_sandbox;
    }
  
    /**
     * @param $device_token 设备的token
     * @param $msg 发送的消息
     * @param string $sound 推送的提示声音
     */
    public function pushMessage($device_token, $msg, $sound = 'default')
    {
        $apns = stream_context_create();
        stream_context_set_option($apns, 'ssl', 'local_cert', $this->cert_path);
        stream_context_set_option($apns, 'ssl', 'passphrase', $this->password);
        if ($this->is_sandbox)
        {
            $uri = $this->sandbox_uri;
        }
        else
        {
            $uri = $this->publish_uri;
        }
  
        // 设置60s的超时
        $fp = stream_socket_client($uri, $err, $errstr, 60, STREAM_CLIENT_CONNECT | STREAM_CLIENT_PERSISTENT, $apns);
        if (!$fp)
        {
            $errMsg = "连接打开失败: ($err)$errstr";
            die($errMsg);
        }
  
        // 组成发送apns的信息流
        $body['aps'] = array(
            'alert' => $msg,
            'sound' => $sound
        );
        $json        = json_encode($body);
        // 转成二进制流
        $message     = chr(0) . pack('n', 32) . pack('H*', $device_token) . pack('n', strlen($json)) . $json;
  
        $result = fwrite($fp, $message, strlen($message));
        if (!$result)
        {
            die('信息推送失败!');
        }
  
        fclose($fp);
        echo '推送成功!';
    }
}