What are some alternative methods to retrieve the content of a PHP file without encountering issues related to defined('_CONF') or die('No input file specified')?

When trying to retrieve the content of a PHP file, encountering issues related to defined('_CONF') or die('No input file specified') can occur when the file is not being accessed properly, such as through a web browser instead of being included in another PHP file. To avoid these issues, one alternative method is to use the file_get_contents() function to directly read the content of the PHP file.

$content = file_get_contents('path/to/your/file.php');
echo $content;