ofcold / qrcode
An easy-to-use PHP QrCode generator.
Requires
- php: ^7.2
- bacon/bacon-qr-code: ^2.0
- illuminate/http: ^5.5
- illuminate/routing: ^5.5
- illuminate/support: ^5.5
This package is auto-updated.
Last update: 2024-03-21 00:59:20 UTC
README
Ofcold QR code
An easy-to-use PHP QrCode generator.
Introduction
Simple QrCode is an easy to use wrapper for the popular Laravel framework based on the great work provided by Bacon/BaconQrCode. We created an interface that is familiar and easy to install for Laravel users.
Installation
composer require ofcold/qrcode
Usage
Heads up! This method must be called last if using within a chain.
Generate by default will return a SVG image string. You can print this directly into a modern browser within Laravel's Blade system with the following:
QrCode::generate($text); // The generate method has a second parameter that will accept a filename and path to save the QrCode. QrCode::generate($text, 'public/qrcode.svg');
Basic
use Ofcold\QrCode\Facades\QrCode; use Ofcold\QrCode\HexToRgb; $text = 'Happy New Year'; // Default output svg format file. QrCode::generate($text);
Response
The browser directly outputs the image.
use QRcodeResponse
use Ofcold\QrCode\QRcodeResponse new QRcodeResponse(QrCode::generate($text))
use response()
$qr = QrCode::color('#ff0000'); response($qr->generate($text))->header('Content-Type', $qr->getContentType())
Format Change
QrCode Generator is setup to return a SVG image by default. Watch out! The format method must be called before any other formatting options such as size, color, backgroundColor, and margin.
// Output other file formats. QrCode::format('png') ->generate($text);
Size Change
QrCode Generator will by default return the smallest size possible in pixels to create the QrCode.
// You can change the size of a QrCode by using the size method. Simply specify the size desired in pixels using the following syntax: QrCode::size(400) ->generate($text);
Color Change
Be careful when changing the color of a QrCode. Some readers have a very difficult time reading QrCodes in color.
// Change the QR code color, Supported rgb and hex
// All colors must be expressed in RGB (Red Green Blue). You can change the color of a QrCode by using the following: 255.255.0 OR #ff0000
QrCode::color(HexToRgb::make('#ff0000'))
// color([255, 0, 0])
->format('png')
->generate($text);
Margin Change
The ability to change the margin around a QrCode is also supported. Simply specify the desired margin using the following syntax:
QrCode::margin(100)->generate($text);
Error Correction
Changing the level of error correction is easy. Just use the following syntax: L = 1 M = 0 Q = 3 H = 1
QrCode::errorCorrection(1)->generate($text);
Encoding
Change the character encoding that is used to build a QrCode. By default ISO-8859-1 is selected as the encoder. Read more about character encoding You can change this to any of the following:
QrCode::encoding('UTF-8')->generate($text);
Character Encoder: ISO-8859-1, ISO-8859-2, ISO-8859-3, ISO-8859-4, ISO-8859-5, ISO-8859-6, ISO-8859-7, ISO-8859-8, ISO-8859-9, ISO-8859-10, ISO-8859-11, ISO-8859-12, ISO-8859-13, ISO-8859-14, ISO-8859-15, ISO-8859-16, SHIFT-JIS, WINDOWS-1250, WINDOWS-1251, WINDOWS-1252, WINDOWS-1256, UTF-16BE, UTF-8, ASCII, GBK, EUC-KR,
An error of Could not encode content to ISO-8859-1 means that the wrong character encoding type is being used. We recommend UTF-8 if you are unsure.
Merge
The merge method merges an image over a QrCode. This is commonly used to placed logos within a QrCode.
QrCode::merge($filename, $percentage, $absolute); // Generates a QrCode with an image centered in the middle. QrCode::format('png')->merge('path-to-image.png')->generate(); // Generates a QrCode with an image centered in the middle. The inserted image takes up 20% of the QrCode. QrCode::format('png')->merge('path-to-image.png', .2)->generate(); // Generates a QrCode with an image centered in the middle. The inserted image takes up 20% of the QrCode. QrCode::format('png')->merge('http://ofcold.com/icon.png', .2, true)->generate();
The merge method only supports PNG at this time. The filepath is relative to app base path if $absolute is set to false. Change this variable to true to use absolute paths. You should use a high level of error correction when using the merge method to ensure that the QrCode is still readable. We recommend using errorCorrection(1).
Merge Binary String
The mergeString method can be used to achieve the same as the merge call, except it allows you to provide a string representation of the file instead of the filepath. This is usefull when working with the Storage facade. It's interface is quite similar to the merge call.
QrCode::mergeString(Storage::get('path/to/image.png'), $percentage); // Generates a QrCode with an image centered in the middle. QrCode::format('png')->mergeString(Storage::get('path/to/image.png'))->generate(); // Generates a QrCode with an image centered in the middle. The inserted image takes up 20% of the QrCode. QrCode::format('png')->mergeString(Storage::get('path/to/image.png'), .2)->generate();
As with the normal merge call, only PNG is supported at this time. The same applies for error correction, high levels are recommened.
Advance Usage
All methods support chaining. The generate method must be called last and any format change must be called first. For example you could run any of the following:
QrCode::size(250)->color(150,90,10)->backgroundColor(10,14,244)->generate($text); QrCode::format('png')->size(399)->color(40,40,40)->generate($text);
Helpers
What are helpers?
Helpers are an easy way to create QrCodes that cause a reader to perform a certain action when scanned.
BitCoin
This helpers generates a scannable bitcoin to send payments. More information
QrCode::BTC($address, $amount); //Sends a 0.334BTC payment to the address QrCode::BTC('bitcoin address', 0.334); // Sends a 0.334BTC payment to the address with some optional arguments QrCode::size(500)->BTC('address', 0.0034, [ 'label' => 'my label', 'message' => 'my message', 'returnAddress' => 'https://www.returnaddress.com' ]);
This helper generates an e-mail qrcode that is able to fill in the e-mail address, subject, and body.
QrCode::email($to, $subject, $body); // Fills in the to address QrCode::email('foo@bar.com'); // Fills in the to address, subject, and body of an e-mail. QrCode::email('foo@bar.com', 'This is the subject.', 'This is the message body.'); // Fills in just the subject and body of an e-mail. QrCode::email(null, 'This is the subject.', 'This is the message body.');
Geo
This helper generates a latitude and longitude that a phone can read and open the location up in Google Maps or similar app.
QrCode::geo($latitude, $longitude); QrCode::geo(37.822214, -122.481769);
Phone Number
This helper generates a QrCode that can be scanned and then dials a number.
QrCode::phoneNumber($phoneNumber); QrCode::phoneNumber('18898726543'); QrCode::phoneNumber('1-800-MY-APPLE');
SMS (Text Messages)
This helper makes SMS messages that can be prefilled with the send to address and body of the message.
QrCode::SMS($phoneNumber, $message); // Creates a text message with the number filled in. QrCode::SMS('555-555-5555'); // Creates a text message with the number and message filled in. QrCode::SMS('555-555-5555', 'Body of the message');
Wi-Fi
This helpers makes scannable QrCodes that can connect a phone to a WiFI network.
QrCode::wiFi([ 'encryption' => 'WPA/WEP', 'ssid' => 'SSID of the network', 'password' => 'Password of the network', 'hidden' => 'Whether the network is a hidden SSID or not.' ]); // Connects to an open WiFi network. QrCode::wiFi([ 'ssid' => 'Network Name', ]); // Connects to an open, hidden WiFi network. QrCode::wiFi([ 'ssid' => 'Network Name', 'hidden' => 'true' ]); // Connects to an secured, WiFi network. QrCode::wiFi([ 'ssid' => 'Network Name', 'encryption' => 'WPA', 'password' => 'myPassword' ]);
License
This software is released under the MIT license.