Looking for logging into the Php Header site and are not getting the correct working link for it? In such a case, you can use the links given here by searching your desired login page in the search box. If the page is present on our website then you will get all the links related to the Php Header site. After that you can login as usual with your login credentials.
http://php.net/manual/en/features.http-auth.php
http://php.net/manual/en/function.header.php
https://stackoverflow.com/questions/44915659/php-header-authentication
https://gist.github.com/1993937
https://board.phpbuilder.com/d/2118410-header-quotlocation-loginphpquot
https://www.w3schools.com/php/func_http_header.asp
https://www.freecodecamp.org/forum/t/php-header-error-on-html-page/245821
https://wordpress.org/support/topic/use-a-different-header-php/
https://wordpress.org/support/topic/urgent-cannot-log-in-headers-already-sent/
https://security.stackexchange.com/questions/154624/does-using-php-headers-during-login-make-the-form-vulnerable-to-attacks
https://evertpot.com/223/