WP_Filesystem_Base::getnumchmodfromh( string $mode ): string

420	public function getnumchmodfromh( $mode ) {421		$realmode = '';422		$legal    = array( '', 'w', 'r', 'x', '-' );423		$attarray = preg_split( '//', $mode );424 425		for ( $i = 0, $c = count( $attarray ); $i < $c; $i++ ) {426			$key = array_search( $attarray[ $i ], $legal, true );427 428			if ( $key ) {429				$realmode .= $legal[ $key ];430			}431		}432 433		$mode  = str_pad( $realmode, 10, '-', STR_PAD_LEFT );434		$trans = array(435			'-' => '0',436			'r' => '4',437			'w' => '2',438			'x' => '1',439		);440		$mode  = strtr( $mode, $trans );441 442		$newmode  = $mode[0];443		$newmode .= $mode[1] + $mode[2] + $mode[3];444		$newmode .= $mode[4] + $mode[5] + $mode[6];445		$newmode .= $mode[7] + $mode[8] + $mode[9];446 447		return $newmode;448	}