TcpClient.php

		$context = stream_context_create();
		$result1 = stream_context_set_option($context, 'ssl', 'local_cert', $certPath);
		$result2 = stream_context_set_option($context, 'ssl', 'passphrase', $certPass);

		if (!$this->socket = stream_socket_client($target, $errno, $errstr, $timeout, STREAM_CLIENT_CONNECT, $context))
		{
			throw new Exception("Error connecting to $target: $errstr (code $errno)");
		}