Filesystem Funcții
PHP Manual

realpath

(PHP 4, PHP 5)

realpathReturns canonicalized absolute pathname

Descrierea

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.

Parametri

path

The path being checked.

Valorile întoarse

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.

Notă:

The running script must have executable permissions on all directories in the hierarchy, otherwise realpath() will return FALSE.

Istoria schimbărilor

Versiunea Descriere
5.3.0 Prior to this release realpath() would not fail on *BSD systems if only the last last path component did not exist.

Exemple

Example #1 realpath() example

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

Exemplul de mai sus va afișa:

/etc/passwd

Example #2 realpath() on Windows

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

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

Exemplul de mai sus va afișa:

C:\WINDOWS\System32

Vedeți de asemenea


Filesystem Funcții
PHP Manual