How can one prevent complications when accessing a PHP file directly, such as board.php?

Directly accessing PHP files like board.php can lead to security vulnerabilities and potential complications. To prevent this, you can use a technique called "file inclusion" where you check if the file is being accessed through the correct entry point. This can be done by defining a constant in your main file and checking it in the included files. 

// index.php

define('MY_APP', true);
include 'board.php';
```

```php
// board.php

if (!defined('MY_APP')) {
    die('Direct access not allowed');
}

// Rest of your board.php code here

Keywords

Direct access security measures authentication authorization .htaccess

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