convert url to qr code

will be converted to 4 or 7 bits, the other three digits will be compiled into 10, 12, 14 bits, and the size of the two-dimensional code will also be checked (this is described in Table 3 below) Alphanumeric modeCharacter encoding. Including 0-9, uppercase A to Z (no lower case), and symbol $ % * +-./: including space. These characters are mapped into a character index table. (SP is a space, char is a character, and value is its index value) the enco

The function of two-dimensional code1) mobile device sweep, easy to "take" reading (that is, the URL to generate a two-dimensional code)2) information can be passed (simply generate a QR code)Third-party Open source librariesProject Source: Https://github.com/jeromeetienne/jquery-qrcodeQrcode.js Core Function Library o

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 =

a lot of information, we are interested to download data research, the following gives some reference. Let's take a look at the tools below:The interface is simple, and the following is a simple example:Two-dimensional code content: generated QR code content, you can enter any string, such as the URL, support Chinese.

This article compares two common methods to generate a QR code with a logo. it is very practical. if you need it, you can select it based on your needs. I. class library used 1. phpqrcode (php Library) 2. qrcode. js (javascript Library) II. Use of phpqrcode Only use php class libraries, that is, generating QR codes in the background. To generate a

_width, 0, 0,$logo _qr_width,$logo _qr_height,$logo _width,$logo _height); /** imagecopyresampled (Resource $dst _image, resource $src _image, int $dst _x, int $dst _y, int $src _x, int $src _y, int $dst _w, int $dst _h, int $src _w, int $src _h) * Parameter details: * $DST _image: Target image connection resource. * $SRC _image: Source Image connection resource. * $DST _x: target x coordinate point. * $DST _y: target y coordinate point. * $SRC _x: The x-

Cat Share, must boutiqueOriginal articles, welcome reprint. Reprint Please specify: Sanayu's BlogAddress: http://blog.csdn.net/u013357243QR Code is a project may be used, iOS open camera request QR Code speed is not Android can compare ... (Android scan QR code to swing back

of numbers to be encoded is not a multiple of 3, the remaining 1 or 2 digits will be converted to 4 or 7 bits, the other three digits will be compiled into 10, 12, 14 bits, and the size of the two-dimensional code will also be checked (this is described in Table 3 below) 　　Alphanumeric modeCharacter encoding. Including 0-9, uppercase A to Z (no lower case), and symbol $ % * +-./: including space. These characters are mapped into a character index tab

as follows:$ ("# Qrcode"). qcrode ({Render: "table ",Width: 200,Height: 200,Text: "http://www.bkjia.com"}); Solve the problem that there is a Chinese method in the url During the experiment, we found that the two-dimensional code could not recognize Chinese content. We found that jquery-qrcode was converted using charCodeAt. And this method will get its Unicode encoding by default, if there is Chinese cont

This article mainly introduces in detail the sample code used by the applet to generate a QR code with parameters by clicking the button, which has some reference value. interested friends can refer to the following objectives: Request and display the QR code Steps: Click th

(The last few days have been made QR code polling login thought for a long time finally came out to share to everyone ^-^)Polling:The so-called polling definitely needs setinterval But how to add AJAX requests needs a little bit of a problem and you need to stop looking at the code after a successful poll var tis = setinterval (function () {$. Ajax (getting)}

only to load this jQ I do not work here, must reload Qrcode.js The code for the JQ generation of QR code must be behind the container element and can be placed inside the Third, PHP generated Electronic Business Card 1. VCardVCard is the file format standard for Electronic business cards. It is usually attached to e-mail, but it can also be used for ot

statistics, and other scenarios. When a user scans a QR code with a scene value, the following two events may be pushed: If the user has not followed the public account, the user can follow the public account, after which the event with the scene value will be pushed to the developer. If the user has followed the public account, the user will automatically enter the session after scanning, and the event wi

cht=qr：必要参数，固定值 chs=width>xheight> : necessary parameters, generate two-dimensional code size, units are pixels, the current generated QR code is square, so the two width and height values are set to the same value chl=data> : The necessary parameters, the generation of two-dimensional

then click Confirm, will send a GET request to this URL, which contains a lot of parameters, Most of them are let ourselves check whether this visit is not a server request, I did not verify that his request is if we check the success, that is, return the GET request is a parameter echostr, here is not return, nor ajaxreturn, and use Echo, If developed with thinkphp, use echo I (' echostr ') directly; Can. The interface is then validated successfully