Prevent direct access to a php include file

Question

I have a php file which I will be using as exclusively as an include. Therefore I would like to throw an error instead of executing it when it\'s accessed directly by typing

Answer 1

I found this php-only and invariable solution which works both with http and cli :

Define a function :

function forbidDirectAccess($file) {
    $self = getcwd()."/".trim($_SERVER["PHP_SELF"], "/");
    (substr_compare($file, $self, -strlen($self)) != 0) or die('Restricted access');
}

Call the function in the file you want to prevent direct access to :

forbidDirectAccess(__FILE__);

Most of the solutions given above to this question do not work in Cli mode.