Mini Program QR code "how to convert these into QR code pictures
Mini Program QR code "how to convert these into QR code pictures
this is a binary stream file, which needs to be processed in the background and returned to the front end of a url.
you can take a look at this post of Mini Program Forum for details.
https://developers.weixin.qq.
https://developers.weixin.qq.
generate QR code pictures in the background. Return directly to the picture address. Zxing learn about
"data:image/jpeg;base64,". Base64 _ encode ($result) $result is the binary code you returned and converted into base64 to OK
once returned to the front end of an image link after PHP put this base64.
now there is an A1 _ cat table and an A1 table. There is a third table that associates A1 with A1. Using a1_cat_a1, naming your own project is confusing. I don t know how you name it in the project. ask for advice. I want to change it to relevance_a1_c...