a php extension which generates qr code
Just make sure you've already had php and gd extension installed
Clone the repo with submodule
git clone --recursive https://github.com/chrisyue/mosaic.git
Compile and install mosaic
cd mosaic
phpize && ./configure && make && make install
enable mosaic in php.ini
extension=mosaic.so
gdimage resource qr_encode(string $text[, int $msize = 5[, int $margin = 10[, int $version = 3[, $int $eclevel = QR_ECLEVEL_Q]]]])
or object-oriented style
Qr Qr::__construct(string $text[, int $msize = 5[, int $margin = 10[, int $version = 3[, $int $eclevel = QR_ECLEVEL_Q]]]])
Qr Qr::setText(string $text);
Qr Qr::setModuleSize(int $msize);
Qr Qr::setMargin(int $margin);
Qr Qr::setVersion(int $version);
Qr Qr::setErrorCorrectionLevel(int $eclevel);
gdimage resource QR::encode();
$text Text to be encoded
$msize Module size in pixel. The picture below explains what a module is.
$margin
$version A 1 to 40 integer. You can make the qr code contain more data by increasing this parameter
$eclevel Error correction level. there are 4 values: QR_ECLEVEL_L, QR_ECLEVEL_M, QR_ECLEVEL_Q, QR_ECLEVEL_H.
This value indicates the ability of qr code error correction.
For example, if the QR_ECLEVEL_H(the highest level) is set,
if less than 30% of the area of the qr code is damaged,
it can still be recognized and all the data in this qr can be restored
For more information about version and error correction level, please visit the wikipedia page
return image resource
<?php
header('Content-type: image/png');
$im = qr_encode('https://github.com/chrisyue/mosaic');
imagestring($im, 5, 65, 80, 'Mosaic', imagecolorallocate($im, 128, 128, 128));
imagepng($im);
imagedestroy($im);
or object-oriented style:
<?php
header('Content-type: image/png');
$qr = new Qr('https://github.com/chrisyue/mosaic');
$im = $qr->setMargin(20)->setErrorCorrectionLevel(QR_ECLEVEL_H)->encode();
imagepng($im);
imagedestroy($im);
Redistribution and use in source and binary forms, with or without modification, are permitted provided that the conditions mentioned in the accompanying LICENSE file are met (BSD, revised).
Follow me or fork this repo at https://github.com/chrisyue/mosaic
or send mails to blizzchris (gmail.com)