realpath
(PHP 4, PHP 5)
realpath — Returns canonicalized absolute pathname
Description
string realpath
( string $path
)
Parameters
-
path
-
The path being checked.
Return Values
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.
Examples
Example #1 realpath() example
<?php
chdir('/var/www/');
echo realpath('./../../etc/passwd');
?>
The above example will output:
Example #2 realpath() on Windows
On windows realpath() will change unix style paths to
windows style.
<?php
echo realpath('/windows/system32');
?>
The above example will output:
readlink
