Qr код распознать php

Generating and Scanning QRcodes With PHP

In this article i will show how to process QR codes in PHP and how to generate QR code images and scan those images back to their original text.

Overview

QR codes is a standard that represents some decoded text often used with commercial items such as products and it used to identify those items in graphical format in the form of images. There are a lot of software that can generate and scan QR codes and in this tutorial we will show you how to manipulate QR codes with PHP.

For the purpose of this tutorial we will use two libraries that can be used to generate and scan QR codes, which are:

• phpqrcode: we will use this to generate QR codes, you can download it from this link.
• php-qrcode-detector-decoder: we will use to scan QR codes install it from this link.

After downloading the two libraries add them to your project, in the next sections we will see how to generate QR codes.

Generating QR codes:

To generate QR codes you need first to include the qrlib.php in your project, next create a new file generate.php as shown below:

Output QR codes to the browser:

To output QR codes to the browser directly call Qrcode::png() as shown:

Now run your script in the browser, and check the image shown.

Passing the output to img src:

Instead of outputting the result directly into the browser you can use the it as the src of the img tag as shown here:

Output QR code according to parameter:

You can pass parameters to the url therapy you can capture those parameters and output QR codes accordingly as shown below:

Also you can pass parameters to url in the img src:

Saving the Qr code to a file:

You can if you want to save the QR code to file or store it in the database, just pass a second parameter to QRcode::png() which is the file path to store in the png as shown here:

include './phpqrcode/qrlib.php'; $code = "web mob tuts"; $fileName = md5(uniqid()).'.png'; $tempDir = "files"; // the directory to store the files $filePath = $tempDir . "/" . $fileName; QRcode::png($code, $filePath); // note the second parameter if(file_exists($filePath)) < echo ''; >

Controlling pixel size:

You can control the pixel size when creating the QR code by passing a third and fourth parameters, the third parameter represents the ECC level and the fourth parameter represents the pixel size, 1 small size and 4 biggest size:

$code = 'web mob tuts'; QRcode::png($code, 'files/1.png', QR_ECLEVEL_L, 1); QRcode::png($code, 'files/2.png', QR_ECLEVEL_M, 2); QRcode::png($code, 'files/3.png', QR_ECLEVEL_Q, 3); QRcode::png($code, 'files/4.png', QR_ECLEVEL_H, 4); // displaying echo ''; echo ''; echo ''; echo '';

Reading QR codes:

To read or scan Qr code we will use the second library, so include the dependencies from the vendor autoload file as follows:

As shown above we included the vendor composer file and then we imported the namespace relating the class QrReader, not that without this line you will get a fatal error.

To read specific Qr codes just pass the image png file to read method as shown below:

$qrcode = new QrReader('files/1.png'); $text = $qrcode->text(); echo $text;

Calling $qrcode->text() will retrieve the QR code data.

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This is a PHP library to detect and decode QR-codes. This is first and only QR code reader that works without extensions.

License

Apache-2.0, MIT licenses found

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khanamiryan/php-qrcode-detector-decoder

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README.md

QR code decoder / reader for PHP

This is a PHP library to detect and decode QR-codes.
This is first and only QR code reader that works without extensions.
Ported from ZXing library

The recommended method of installing this library is via Composer.

Run the following command from your project root:

$ composer require khanamiryan/qrcode-detector-decoder

require __DIR__ . "/vendor/autoload.php"; use Zxing\QrReader; $qrcode = new QrReader('path/to_image'); $text = $qrcode->text(); //return decoded text from QR Code

You can help the project by adding features, cleaning the code, adding composer and other.

1. Fork it
2. Create your feature branch: git checkout -b my-new-feature
3. Commit your changes: git commit -am ‘Add some feature’
4. Push to the branch: git push origin my-new-feature
5. Submit a pull request

About

This is a PHP library to detect and decode QR-codes. This is first and only QR code reader that works without extensions.

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Simple PHP QR Code Reader / Decoder

libern/qr-code-reader

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README.md

PHP QR Code Reader / Decoder

This is a PHP library to detect and decode QR-codes.
This is QR code reader that works without extensions.
This library supports PSR-4.
Based on QR code decoder / reader for PHP
Ported from ZXing library

composer require libern/qr-code-reader 

$QRCodeReader = new Libern\QRCodeReader\QRCodeReader(); $qrcode_text = $QRCodeReader->decode("path_to_qr_code"); echo $qrcode_text;

$QRCodeReader = new Libern\QRCodeReader\QRCodeReader(); $qrcode_text = $QRCodeReader->decode(base64_encode("image_stream")); echo $qrcode_text;

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Как реализовать чтение qr и штрихкодов на пхп?

Перерыл весь интернет — инфы, как создать ридер — нет нифига(( Либо пишут, что для пхп такого нет, либо инфа по созданию штрихкода, а не по чтению. Но как же нет, когда вот на сайте все сделано: https://www.imgonline.com.ua/scan-qr-bar-code.php Т.е у меня по сути такая же задача, только картинка с кодом будет браться не через «обзор», а подгружаться по урл со стороннего сайта. Куда рыть?

У нас с вами разный интернет? На github ТОННА готовых скриптов. https://www.google.ru/search?client=opera&q=php+qr+code+reader&sourceid=opera&ie=UTF-8&oe=UTF-8 Даже на ютубе ролики обучающие есть.

✅ Трастовых площадок под размещение статей и ссылок. Опыт 15 лет! ( https://searchengines.guru/ru/forum/675690 ) ⭐ Купить вечные трастовые ссылки для сайта ( https://getmanylinks.ru/?srh ) ⭐ Новый аналог AllSubbmitter (заполнение форм) https://getmanylinks.ru/getmanysubmits.html (Бесплатное демо)

Ну вот. Открываю первый же видос. https://www.youtube.com/watch?v=IFW2rlssW-Q Качаю исходники. Тестирую. Он только QR-коды читает. А мне нужно ВСЕ! Причем штрихкоды в приоритете. По штриихкодам пока ни одного не нашел. По QR из того, что нашел на гите, работают только 3 (перепробовал штук 20), но ни один не читает штрихкод.

По штриихкодам пока ни одного не нашел.

Потом соединяете оба скрипта и работаете. Если не можете и не умеете, заказывайте вам сделают.

Ну вот к примеру. Взял, скачал отсюда https://github.com/dynamsoft-dbr/php-barcode-reader Загружаю файл — ошибка Fatal error: Call to undefined function DecodeBarcodeFile() Зависимости ведут сюда https://www.dynamsoft.com/Downloads/XTRKJFPOUMIDSCGQBI_DBR.aspx Зарегался, качаю — там блин экзешник. Никакие ни библиотеки/классы, а софт. И приплыли блин.

Сколько подобное будет стоить? (Вы бы за такое взялись) Т.е нужно такое: Форма с единственным полем для указания ссылки на файл Фотки вот такого вида https://xoxo.ru/wp-content/uploads/2017/08/12-8.jpg Я вбиваю урл фотки и получаю цифры кода. Реализация на php — это принципиально (т.к в дальнейшем это должно стать частью более сложного скрипта) Плюс скрипт автоматически должен читать и qr коды тоже.

На чистом PHP это бредовая идея делать т.к. PHP и изображения это как небо и земля. Поэтому во всех примерах юзаются библиотеки внешние для работы с изображениями и далее уже через PHP идут запросы к этим библиотекам.

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