Include all php file in specific folder

<?php
/**
 * Include all php inside the folder
 * @param  string $folder folder name
 * @return void      	    include all the php inside the folder that you enter.
 */
if ( ! function_exists( 'include_all_php' ) ) 
{
	function include_all_php( $folder )
	{
		foreach ( glob( dirname(__FILE__)."/{$folder}/*.php" ) as $filename )
		{
			include_once( $filename );
		}
	}
}