The best idea of denied access file directly?

I am looking for the idea for php code to denied the accessing directly to a file.

The file i am talking about will be use for include();

so basically not allow to access the file directly.

 

You could do something like this:

<?php
$green="yes";
include('yourfile.php');
?>

PHP:

and in the file yourfile.php have:

if($green!="yes"){
exit();
}
else
{
//do something
}

PHP:

There may be a better/more secure solution depending what you need to do.

 

it is going to be in opensource project so.

do you have an idea for more secure?

I saw in mambo use

defined( '_VALID_MOS' ) or die( 'Direct Access to this location is not allowed.' );

Code (markup):

Do you know how does it work?

 

oh I on the file will have this line, but still thinking about what to check

//check direct access
if ($something to check not correct) {
   echo "This file can't access directly";
   exit;
}

Code (markup):

 

ok I know now. hehehe.. very same as the code you gave above.

thank you.