set_realpath()

set_realpath($path[, $check_existance = FALSE])

Parameters:	$path (string) – Path $check_existance (bool) – Whether to check if the path actually exists
Returns:	An absolute path
Return type:	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'

Links:

http://www.codeigniter.com/user_guide/helpers/path_helper.html#set_realpath

doc_CodeIgniter

2016-10-15 16:32:39

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