Javascript-what QR code APIs are generally used to generate a QR code for platform distribution?

Generally, what QR code APIs are used to generate QR codes for platform distribution? generally, what QR code APIs are used to generate QR codes for platform distribution?

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What QR code APIs are generally used to generate a QR code for platform distribution?

For specific use cases, php can use the qrcode third-party library.

Qrcode class library

TP

Vendor ("phpqrcode. phpqrcode"); $ QRcode = new QRcode (); $ data = $ data? $ Data: 'error occurred while generating the QR code. contact the administrator! '; // Error correction level: L, M, Q, H $ level = 'l'; // point size: 1 to 10, $ size = 8 for mobile phone 4; // The following comments the code for saving the QR code image to a local device. if you want to save the image, replace the second parameter with $ fileName: false $ path = ". /Public/Upload/QrcPic/"; if (! Is_dir ($ path) {mkdir ($ path, 0777, true);} // The generated file name $ fileName contains your prefix.inclusid.'.png '; // You can check whether the file exists, the two-dimensional code image name is returned. // $ checkFile = $ path. $ fileName; if (file_exists ($ checkFile) {return $ fileName; exit;} // stream at the output graph // QRCimg = QRcode: png ($ data, $ fileName, $ level, $ size, $ padding); $ QRcode-> png ($ data, $ path. $ fileName, $ level, $ size, $ padding );