Path


PHP Data structures Strings Public

Hard  

30min


Write a function that provides change directory (cd) function for an abstract file system.

Notes:

  • Root path is '/'.
  • Path separator is '/'.
  • Parent directory is addressable as '..'.
  • Directory names consist only of English alphabet letters (A-Z and a-z).
  • The function will not be passed any invalid paths.
  • Do not use built-in path-related functions.

For example:

$path = new Path('/a/b/c/d');
$path->cd('../x')
echo $path->currentPath;

should display '/a/b/c/x'.

PHP 7.0.4
   

  •   Example case: Wrong answer
  •   Selecting child directories: Wrong answer
  •   Selecting parent directories: Wrong answer
  •   Selecting complex paths: Wrong answer