WP_Filesystem_ftpsockets::is_dir( string $path )

Source

File: wp-admin/includes/class-wp-filesystem-ftpsockets.php

public function is_dir( $path ) {
		$cwd = $this->cwd();

		if ( $this->chdir( $path ) ) {
			$this->chdir( $cwd );
			return true;
		}

		return false;
	}