Php-server

Question

Friends, I have a question
I add the php code to the form action and run html on Apache in Ubuntu, but when I submit it gives a Page not found error.
Why?

Answer 1

The question would be the path. This can be checked if the file is in the same directory as the other . Then its name is enough as a link.

Answer 2

JaScript there is no file and it is just a line of code.
<? php echo htmlspecialchars($_SERVER["php_SELF"]); ?>

Answer 3

Mostafa Sarmad unfortunately I am not a psychic. Without your attempt code cannot be said anything.

Answer 4

By the way this full statement looks like as follows:

<form action="<?php echo htmlspecialchars($_SERVER["PHP_SELF"]);?>" method="get">