Funkcje Systemu plików
PHP Manual

realpath

(PHP 4, PHP 5)

realpathReturns canonicalized absolute pathname

Opis

string realpath ( string $path )

realpath() expands all symbolic links and resolves references to '/./', '/../' and extra '/' characters in the input path . and return the canonicalized absolute pathname.

Parametry

path

The path being checked.

Zwracane wartości

Returns the canonicalized absolute pathname on success. The resulting path will have no symbolic link, '/./' or '/../' components.

realpath() returns FALSE on failure, e.g. if the file does not exist. On BSD systems realpath() doesn't fail if only the last path component doesn't exist, while other systems will return FALSE.

Przykłady

Example #1 realpath() example

<?php
chdir
('/var/www/');
echo 
realpath('./../../etc/passwd');
?>

Powyższy przykład wyświetli:

/etc/passwd

Example #2 realpath() on Windows

On windows realpath() will change unix style paths to windows style.

<?php
echo realpath('/windows/system32');
?>

Powyższy przykład wyświetli:

C:\WINDOWS\System32

Patrz także


Funkcje Systemu plików
PHP Manual