function list_files( $folder = '', $levels = 100, $exclusions = array(), $include_hidden = false ) { if ( empty( $folder ) ) { return false; } $folder = trailingslashit( $folder ); if ( ! $levels ) { return false; } $files = array(); $dir = @opendir( $folder ); if ( $dir ) { while ( ( $file = readdir( $dir ) ) !== false ) { // Skip current and parent folder links. if ( in_array( $file, array( '.', '..' ), true ) ) { continue; } // Skip hidden and excluded files. if ( ( ! $include_hidden && '.' === $file[0] ) || in_array( $file, $exclusions, true ) ) { continue; } if ( is_dir( $folder . $file ) ) { $files2 = list_files( $folder . $file, $levels - 1, array(), $include_hidden ); if ( $files2 ) { $files = array_merge( $files, $files2 ); } else { $files[] = $folder . $file . '/'; } } else { $files[] = $folder . $file; } } closedir( $dir ); } return $files; }