Php solves Chinese garbled characters when generating QR codes

This article mainly introduces the solutions for Chinese garbled characters when php generates a QR code, analyzes in detail the methods for generating a QR code by php, and the solutions for garbled characters, has some reference value and needs of friends

This article mainly introduces the solutions for Chinese garbled characters when php generates a QR code, analyzes in detail the methods for generating a QR code by php, and the solutions for garbled characters, has some reference value and needs of friends

This example describes how to solve Chinese garbled characters when php generates a QR code. Share it with you for your reference. The specific analysis is as follows:

Recently, I had a project to scan the QR code to get the vcard. I encountered a problem. Some of the generated QR codes were garbled in the Chinese names in the vcard obtained after scanning with the android mobile phone, after comparison, we found that there is no content in the ORG type in this part of vcard, and a fixed string is added when no content is determined, so that the garbled problem can be solved.

Php QR code generation methods

1. Open the api on google with the following code:

The Code is as follows:

$ UrlToEncode = "http://www.jb51.net ";
GenerateQRfromGoogle ($ urlToEncode );
Function generateQRfromGoogle ($ chlorophyll, $ widhtHeight = '000000', $ EC_level = 'l', $ margin = '0 ')
{
$ Url = urlencode ($ url );
Echo '';
}

2. php QR Code library

Address:

Download:

The Code is as follows:

# Create a QR code file

The Code is as follows:

QRcode: png ('Code data text', 'filename.png ');

# Generating images to the browser

The Code is as follows:

QRcode: png ('some othertext 1234 ');

3. libqrencode

Address:

4. QRcode Perl CGI & PHP scripts

Address:

Add a logo in the middle of the QR code in the 2nd methods and modify the png method in the QRimage class in phpqrcode. php. The Code is as follows:

The Code is as follows:

Public static function png ($ frame, $ filename = false, $ pixelPerPoint = 4, $ outerFrame = 4, $ saveandprint = FALSE, $ mergePic = '')
{
$ Image = self: image ($ frame, $ pixelPerPoint, $ outerFrame );
If ($ mergePic ){
$ Im = imagecreatefrompng ($ mergePic );
$ W = imagesx ($ im );
$ H = imagesy ($ im );
ImageAlphaBlending ($ image, true );
ImageAlphaBlending ($ im, true );
$ Qrw = (imagesx ($ image)-$ w)/2;
$ Qrh = (imagesy ($ image)-$ h)/2;
Imagecopy ($ image, $ im, $ qrw, $ qrh, 0, 0, $ w, $ h );
Imagedestroy ($ im );
}
If ($ filename = false ){
Header ("Content-type: image/png ");
ImagePng ($ image );
} Else {
ImagePng ($ image, $ filename );
If ($ saveandprint === TRUE ){
Header ("Content-type: image/png ");
ImagePng ($ image );
}
}
ImageDestroy ($ image );
}

I hope this article will help you with PHP programming.

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