How to save a good verification code image locally in php?

Question

Use PHP to draw login verification pictures. Since the pictures are taken locally, I don’t want to return the picture in the form of a link. I want to name the drawn verification code picture, then save it to the specified path, and then return a local Give the url address to the front desk, and the front end directly inserts the address in <img src="url"/>. How to achieve this? Thank you~

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< br>Up to this point, I just output a png image to the browser. How do I name the image and save it locally?

Also, is this approach correct?

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Img’s src can be written to death

If the data obtained by ajax is placed in the src of img, an error will be reported

Answer 1

Don’t generate pictures anymore. Save it every time you refresh. Think about your hard drive space. If you must do this
modify the eighth line

$imgpath = time().rand(10000,99999).'.png';//生成图片的位置。具体路径需要指定
imagepng($imge,$imgpath);//报错图片
echo $imgpath;//返回图片地址

Answer 2

$pic = "C:pic.png";
imagepng($im,$pic);

is the local path address