########### Path Helper ########### The Path Helper file contains functions that permits you to work with file paths on the server. .. contents:: Page Contents Loading this Helper =================== This helper is loaded using the following code:: $this->load->helper('path'); The following functions are available: set_realpath() ============== .. function:: set_realpath($path, $check_existance = FALSE) :param string $path: Path :param bool $check_existance: Whether to check if the path actually exists :returns: string 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. Examples:: $file = '/etc/php5/apache2/php.ini'; echo set_realpath($file); // Prints '/etc/php5/apache2/php.ini' $non_existent_file = '/path/to/non-exist-file.txt'; echo set_realpath($non_existent_file, TRUE); // Shows an error, as the path cannot be resolved echo set_realpath($non_existent_file, FALSE); // Prints '/path/to/non-exist-file.txt' $directory = '/etc/php5'; echo set_realpath($directory); // Prints '/etc/php5/' $non_existent_directory = '/path/to/nowhere'; echo set_realpath($non_existent_directory, TRUE); // Shows an error, as the path cannot be resolved echo set_realpath($non_existent_directory, FALSE); // Prints '/path/to/nowhere'