php-barcodes's Introduction

PHP Barcode

A PHP class for checking EAN8, EAN13, UPC and GTIN barcodes are valid (based on check digit).

https://packagist.org/packages/violuke/php-barcodes

Note: This project currently does nothing other than have some validation functions. I expect to add additional functionality in the future.

Installation (with composer)

composer require violuke/php-barcodes

Usage

// Class instantation
$barcode = '5060411950139';
$bc_validator = new \violuke\Barcodes\BarcodeValidator($barcode);


// Check barcode is in valid format
if ($bc_validator->isValid()) {
	echo 'Valid :)';
} else {
	echo 'Invalid :(';
}


// Get the barcode type
echo 'Barcode is in format of ' . $bc_validator->getType();
// Possible formats returned are:
// (string) "GTIN" which equals constant \violuke\Barcodes\BarcodeValidator::TYPE_GTIN
// (string) "EAN-8" which equals constant \violuke\Barcodes\BarcodeValidator::TYPE_EAN_8
// (string) "EAN" which equals constant \violuke\Barcodes\BarcodeValidator::TYPE_EAN
// (string) "EAN Restricted" which equals constant \violuke\Barcodes\BarcodeValidator::TYPE_EAN_RESTRICTED
// (string) "UPC" which equals constant \violuke\Barcodes\BarcodeValidator::TYPE_UPC
// (string) "UPC Coupon Code" which equals constant \violuke\Barcodes\BarcodeValidator::TYPE_UPC_COUPON_CODE


// Returns the barcode in GTIN-14 format
$bc_validator->getGTIN14()


// Returns the barcode as entered
$bc_validator->getBarcode()

TODO:

Barcode generation
GS1-128 barcode generation and interpretation

Credits

The barcode validation function was based on work by Ferry Bouwhuis.
EAN Restricted format added from the hassel-it/php-barcodes fork.
Initial unit tests based on work in the hassel-it/php-barcodes fork.

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php-barcodes's Issues

PHP 8 Support

Conversion to GTIN14

if ($bc_validator->isValid()) {
  echo($bc_validator->getType(), 'Type');
  echo($bc_validator->getBarcode(), 'Barcode');
  echo($bc_validator->getGTIN14(), 'GTIN14');
}

Type: UPC
Barcode: 740668124518
GTIN14: 00740668124518

00740668124518 is incorrect, in GTIN14 it should be 0740668124518

GTIN is identified as a UPC

Example: 10031009070944
returns type UPC

getType() incorrectly reports UPC when provided with EAN

0700867967774 is an EAN and not a UPC. 700867967774 is UPC.

$barcode = new \violuke\Barcodes\BarcodeValidator("0700867967774");
‌violuke\Barcodes\BarcodeValidator::__set_state(array(
   'barcode' => '0700867967774',
   'type' => 'UPC',
   'gtin14' => '000000700867967774',
   'valid' => true,
))

‌‌$barcode->getType();
‌UPC

‌‌$barcode->getBarcode();
‌0700867967774

We're going to fix this ourselves now, will create PR shortly.

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