realpath

realpath

Returns canonicalized absolute pathname

 **realpath** string $path

expands all symbolic links and

resolves references to , and extra characters in the input and returns the canonicalized absolute pathname.
realpath``/./``/../``/``path

path The path being checked.

  > **Opmerking:** > Whilst a path must be supplied, the value can be an empty string.

     In this case, the value is interpreted as the current directory.

Returns the canonicalized absolute pathname on success. The resulting path will have no symbolic link, or components. Trailing delimiters, such as and , are also removed. /./``/../``\``/

returns false on failure, e.g. if

the file does not exist. realpath

Opmerking: > The running script must have executable permissions on all directories in the hierarchy, otherwise will return false. realpath

Opmerking: > For case-insensitive filesystems may or may not normalize the character case. realpath

Opmerking: > The function will not work for a file which is inside a Phar as such path would be a virtual path, not a real one. realpath

Opmerking: > On Windows, junctions and symbolic links to directories are only expanded by one level.

Voorbeeld: example

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

echo realpath('/tmp/') . PHP_EOL;
?>

/etc/passwd
/tmp

Voorbeeld: on Windows

 On windows  will change unix style paths to
 windows style.
`realpath`

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

echo realpath('C:\Program Files\\'), PHP_EOL;
?>

C:\WINDOWS\System32
C:\Program Files

basename``dirname``pathinfo