Install escpos-php

Posted on 18th Oct 2023 00:00:00 in pinned

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escpos-php is a PHP library for printing to ESC/POS-compatible thermal and impact printers. It implements a subset of Epson's ESC/POS protocol, which allows you to generate and print receipts with basic formatting, cutting, and barcodes.

The library is easy to use and can be integrated into any PHP application. It is also well-documented, with a comprehensive API reference and examples.

To use escpos-php, you first need to install it using Composer:

composer require mike42/escpos-php
Once escpos-php is installed, you can create a new Printer object to connect to your printer:

PHP

require_once __DIR__ . '/vendor/autoload.php';

$printer = new Escpos\Printer('localhost', 9100);

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The Printer object provides a variety of methods for printing text, barcodes, images, and other types of data. To print a simple receipt, you can use the text() method:

PHP
$printer->text('This is a sample receipt.');
$printer->cut();
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This will print the text "This is a sample receipt." to the printer and then cut the paper. You can also use the feed() method to advance the paper to a specific line:

PHP
$printer->feed(3);
$printer->text('Thank you for your purchase!');
$printer->cut();
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This will print the text "Thank you for your purchase!" three lines below the previous text and then cut the paper.

escpos-php also supports a variety of other features, such as printing barcodes, images, and coupons. You can find more information on the library's GitHub page: https://github.com/mike42/escpos-php.

Here is a complete example of a PHP script that uses escpos-php to print a receipt:

PHP

require_once __DIR__ . '/vendor/autoload.php';

$printer = new Escpos\Printer('localhost', 9100);

$printer->text('Your Order');
$printer->feed();
$printer->text('Item 1: $10.00');
$printer->feed();
$printer->text('Item 2: $5.00');
$printer->feed();
$printer->text('Total: $15.00');
$printer->feed(2);
$printer->text('Thank you for your purchase!');
$printer->cut();

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This script will print a receipt with the following text:

Your Order
Item 1: $10.00
Item 2: $5.00
Total: $15.00

Thank you for your purchase!
escpos-php is a powerful and versatile library for printing to ESC/POS-compatible printers. It is easy to use and can be integrated into any PHP application.


check if escpos-php is install

There are two ways to check if Mike42/escpos-php is installed:

1. Using Composer:

If you installed Mike42/escpos-php using Composer, you can check if it is installed by running the following command:

composer list
This will list all of the PHP packages that are installed on your system, including Mike42/escpos-php. If Mike42/escpos-php is installed, you will see it listed in the output of the composer list command.

2. Using the phpinfo() function:

You can also check if Mike42/escpos-php is installed by running the following PHP code:

PHP

phpinfo();

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This will display a page of information about your PHP installation, including a list of all of the PHP extensions that are loaded. If Mike42/escpos-php is installed, you will see it listed in the Loaded Extensions section of the phpinfo() output.

If you are using a PHP IDE, such as PhpStorm or Eclipse, you may also be able to check if Mike42/escpos-php is installed by looking at the project's dependency tree.

If you are not sure how to check if Mike42/escpos-php is installed, you can always consult the library's documentation: https://github.com/mike42/escpos-php: https://github.com/mike42/escpos-php.

check if is intsalled


Try to create a new Printer object

You can also try to create a new Printer object to see if the library is installed. If the library is not installed, you will get an error message.

Here is an example of how to create a new Printer object:

PHP

require_once __DIR__ . '/vendor/autoload.php';

try {
$printer = new Escpos\Printer('localhost', 9100);
} catch (Exception $e) {
// The library is not installed
}

if ($printer) {
// The library is installed
}