How to set a header image?

I can get the image header with

get_header_image()

ex:

wp eval "echo get_header_image();"

But how can I change that ? I tried

set_header_image(url) and Custom_Image_Header::set_header_image

with no success.

Topic header-image Wordpress

Category Web

1
answered at

get_header_image() uses get_theme_mod() to get the saved header image, so I would assume the following example should be used to update the saved value. And set_header_image does the same thing at the end of it, after all the different checks.

set_theme_mod( 'header_image' , 'your-image-url-here' );

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