xattr_set

(no version information, might be only in CVS)

xattr_set --  Set an extended attribute

Popis

bool xattr_set ( string filename, string name, string value [, int flags] )

This function sets the value of an extended attribute of a file.

Roz��ren� atrib�ty maj� dve odli�n� namespacey: user a root namespace. User namespace je dostupn� pre v�etk�ch u��vate�ov, zatia��o root namespace je dostupn� iba pre u��vate�a s rootovsk�mi privil�giami. xattr ako default pracuje na user namespace, ale m�ete to zmeni� pomocou argumentu flags.

Parametre

filename

The file in which we set the attribute.

name

The name of the extended attribute. This attribute will be created if it doesn't exist or replaced otherwise. You can change this behaviour by using the flags parameter.

value

The value of the attribute.

flags

Tabuľka 1. Supported xattr flags

XATTR_CREATEFunction will fail if extended attribute already exists.
XATTR_REPLACEFunction will fail if extended attribute doesn't exist.
XATTR_DONTFOLLOWDo not follow the symbolic link but operate on symbolic link itself.
XATTR_ROOTSet attribute in root (trusted) namespace. Requires root privileges.

Vrátené hodnoty

Vracia TRUE pri �spechu alebe FALSE pri chybe.

Príklady

Príklad 1. Sets extended attributes on .wav file

<?php
$file
= 'my_favourite_song.wav';
xattr_set($file, 'Artist', 'Someone');
xattr_set($file, 'My ranking', 'Good');
xattr_set($file, 'Listen count', '34');

/* ... other code ... */

printf("You've played this song %d times", xattr_get($file, 'Listen count'));
?>

Tiež pozri

xattr_get()
xattr_remove()