php - how to enable HTTP request header on Apache 2.4.46

one text

Solution:

okay I got like this I have change request header X_PJAX from dash to underscore

add this in .htacess file

RewriteRule .* - [E=HTTP_X_PJAX:%{HTTP:X_PJAX}]

and then access with prefix HTTP

$_SERVER["HTTP_X_PJAX"];