realpath
(PHP 4, PHP 5)
realpath — Returns 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 întroarse
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.
Exemple
Example#1 realpath() example
<?php
chdir('/var/www/');
echo realpath('./../../etc/passwd');
?>
Exemplul de mai sus va afişa:
/etc/passwd