Handle .php files using the getfile in PMPro integration.

.htaccess

# Add this to your .htaccess code just like the normal getfile.php code.
# Follow instructions here first and then add the line: https://www.paidmembershipspro.com/locking-down-protecting-files-with-pmpro/

RewriteRule ^protected-directory/(.*)$ /wp-content/plugins/paid-memberships-pro/services/getfile.php [L]

my-pmpro-getfile-for-php-files.php

<?php
/**
 * Handle .php files using the getfile in PMPro integration.
 *
 * You will need to use another extra htaccess rule along with the normal getfile.php handling as documented at:
 * https://www.paidmembershipspro.com/locking-down-protecting-files-with-pmpro/
 *
 * The custom htaccess rule would be something like:
 *
 * RewriteRule ^protected-directory/(.*)$ /wp-content/plugins/paid-memberships-pro/services/getfile.php [L]
 *
 * This would work similar to -- but would not download the file it would read it -- for the non-WP files solution
 * documented at:
 * https://www.paidmembershipspro.com/locking-non-wordpress-files-folders-paid-memberships-pro/
 *
 * You can add this recipe to your site by creating a custom plugin
 * or using the Code Snippets plugin available for free in the WordPress repository.
 * Read this companion article for step-by-step directions on either method.
 * https://www.paidmembershipspro.com/create-a-plugin-for-pmpro-customizations/
 */

/**
 * Check if the file is a .php file and then include it and stop the normal getfile.php process.
 *
 * @param string $filename The filename being downloaded.
 */
function my_pmpro_getfile_for_php_files( $filename ) {
	// Only run for .php files.
	if ( '.php' !== substr( $filename, -4, 4 ) ) {
		return;
	}

	// Only run if the file is in the /protected-folder/ we want.
	if ( 0 !== strpos( $filename, ABSPATH . 'protected-folder/' ) ) {
		return;
	}

	// Check if they have the access required.
	if ( ! pmpro_hasMembershipLevel( [ 1, 2, 4 ] ) ) {
		// Hook for users without access.
		do_action( 'pmpro_getfile_before_error', $filename, 0 );

		header( 'HTTP/1.1 503 Service Unavailable', true, 503 );
		echo 'HTTP/1.1 503 Service Unavailable';
		exit;
	}

	include $filename;
	exit;
}

add_action( 'pmpro_getfile_before_readfile', 'my_pmpro_getfile_for_php_files' );

test.php

<?php

if ( ! defined( 'ABSPATH' ) ) {
	die( 'You do not have access to this file.' );
}

// Do whatever you'd like to do in your PHP file here.