图像下载为.part文件

Question

i want to allow user to download some png image in my HTML page.

i searched and i found this :

window.location.href = img.src.replace('image/png', 'image/octet-stream');

it's works fine (open a dialog to save the image file ).

but the problem that the file name looks like : <random letters>.part .

so how to solve this ?

and can i change my own file name ?

thanks in advance.

EDIT :

i want it in the browser side not server side (using java script).

Answer 1

您需要在标题中设置内容配置，以强制下载文件名。

header('Content-Disposition: attachment; filename="download.png"');