How can PHP parameters be made available throughout an entire project without constant inclusion?

To make PHP parameters available throughout an entire project without constant inclusion, you can use PHP's built-in `$_SESSION` superglobal array to store and retrieve the parameters as needed. By setting the parameters in the session once and accessing them from any page within the project, you can avoid the need for constant inclusion of the parameter file.

// Start the session
session_start();

// Set the parameter value
$_SESSION['param_name'] = 'param_value';

// Access the parameter value on any page
$param_value = $_SESSION['param_name'];