convert image to qr code

follows:public static function png ($text, $outfile =false, $level =qr_eclevel_l, $size =3, $margin =4, $saveandprint =false) { c1/> $enc = Qrencode::factory ($level, $size, $margin); Return $enc->encodepng ($text, $outfile, $saveandprint =false); } Calling PHP QR code is very simple, and the following code generates a

specific operation code is as follows: The code is as follows: Import ImageImport qrcode Qr = qrcode. QRCode (Version = 2,Error_correction = qrcode. constants. ERROR_CORRECT_H,Box_size = 10,Border = 1)Qr. add_data ("http://jb51.net /")Qr. make (fit = True) Img =

1, two-dimensional codeTwo-dimensional code, also known as a two-dimensional barcode, it is a certain geometry according to a certain pattern in the plane (two-dimensional direction) distribution of the black and white graphics data symbol information, in the code to skillfully use the composition of the computer's internal logic based on the "0", "1" bit stream concept, A number of geometric shapes corresp

int $ the distance between the QR code generated by margin and the image border*/Function generateQRfromGoogle ($ chlorophyll, $ widhtHeight = '000000', $ EC_level = 'l', $ margin = '0 '){$ Chlorophyll = urlencode ($ chlorophyll );Echo ' ';} More detailed can see Baidu Library: http://wenku.baidu.com/view/b2a6ffc60c22590102029dae.html 2. php

, and data.* L-default: 7% of lost data can be identified.* M-identifies 15% of data loss* Q-identifies 25% of data loss* H-identifies 30% of data loss* @ Param int $ the distance between the QR code generated by margin and the image border*/Function generateQRfromGoogle ($ chlorophyll, $ widhtHeight = '000000', $ EC_level = 'l', $ margin = '0 '){$ Chlorophyll =

QR code, also known as QR code, is short for quick response. It is a very popular encoding method on mobile devices in recent years. It can store more information than traditional bar code codes, it can also represent more data types, such as characters, numbers, Japanese, a

on the anchor Point and coordinate point to split the image, get the 0/1 value within each point, and construct a new QR code image.However, from the image to establish a coordinate system, you can find that the picture is actually not a real square, and even a rectangle is not up, can not be scaled to restore the squ

Use PHP to generate a summary of the QR code and a summary of php. Using PHP to generate a summary of the QR code, php summary with the advancement of science and technology, the application of the QR code is more and more extensi

code. Of course, you must enable GD2 in your PHP environment.Phpqrcode. php provides a key png () method.The $ text parameter indicates generating two pieces of information text;The parameter $ outfile indicates whether to output the QR code image file. The default value is no;The $ level parameter indicates the cover

Do not do too much description, the detailed content can refer to the article "Thinkphp3.2 version combined with Phpqrcode to generate two-dimensional code and provide download."The method is to replace the QRCode () method with the QICODE_MH () method, and the path can be configured by itself.Generate QR code-beautify version public function qrcode_mh ($url, $na

A qr code is used to record data information with a specific geometric image on a plane. a QR code is a common QR code. We recommend that you use the php class library PHPQRCode that ge

This article mainly introduces two methods and examples for generating a QR code in PHP, using GoogleAPI and the php qr code to generate a class library PHPQRCode. For more information, see the progress of technology, the QR code

different distributions of black and white pixels in the matrix. In the position of the corresponding elements of the matrix, the presence of dots (square dots, dots, or other shapes) represents the binary "1", and the presence of the dots indicates the binary "0", and the permutation and combination of the points determines the meaning of the matrix two-dimensional barcode. Matrix two-dimensional barcode is a new type of graphic symbol automatic reading and processing