how can I use the same header on multiple pages of my site? (html, php)

Question

Are dozens of pages, I would like to use a same header in all of them.

I would like a solution that does not need JavaScript, just php.

Answer 1

"copy+paste" your selected file that contain header As "template" (no actual template tough but for starter file)..

until you know / learn about AJAX ,
which is worldwide used this for
better interface / security accessing..
not much use plain html / php except if
it's only somewhat company profile or
advertising..

sorry to dissapoint you , but , don't give up ,
keep learning for your needs..