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<?php /** * This file is part of escpos-php: PHP receipt printer library for use with * ESC/POS-compatible thermal and impact printers. * * Copyright (c) 2014-16 Michael Billington < michael.billington@gmail.com >, * incorporating modifications by others. See CONTRIBUTORS.md for a full list. * * This software is distributed under the terms of the MIT license. See LICENSE.md * for details. */ namespace Mike42\Escpos\PrintConnectors; use Exception; /** * PrintConnector for directly opening a network socket to a printer to send it commands. */ class NetworkPrintConnector extends FilePrintConnector { /** * Construct a new NetworkPrintConnector * * @param string $ip IP address or hostname to use. * @param string $port The port number to connect on. * @param string $timeout The connection timeout, in seconds. * @throws Exception Where the socket cannot be opened. */ public function __construct($ip, $port = "9100", $timeout = false) { // Default to 60 if default_socket_timeout isn't defined in the ini $defaultSocketTimeout = ini_get("default_socket_timeout") ?: 60; $timeout = $timeout ?: $defaultSocketTimeout; $this -> fp = @fsockopen($ip, $port, $errno, $errstr, $timeout); if ($this -> fp === false) { throw new Exception("Cannot initialise NetworkPrintConnector: " . $errstr); } } }
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