Path Helper
The Path Helper file contains functions that permits you to work with file paths on the server.
Loading this Helper
This helper is loaded using the following code:
$this->load->helper('path');
The following functions are available:
set_realpath()
Checks to see if the path exists. This function will return a server path without symbolic links or relative directory structures. An optional second argument will cause an error to be triggered if the path cannot be resolved.
$directory = '/etc/passwd';
echo set_realpath($directory);
// returns "/etc/passwd"
$non_existent_directory = '/path/to/nowhere';
echo set_realpath($non_existent_directory, TRUE);
// returns an error, as the path could not be resolved
echo set_realpath($non_existent_directory, FALSE);
// returns "/path/to/nowhere"