PHP kézikönyv
Előző |  | Következő

# xattr_set

(PECL)

xattr_set -- Set an extended attribute

## Leírás

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

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

Extended attributes have two different namespaces: user and root namespace. User namespace is available for all users while root namespace is available only for user with root privileges. xattr operates on user namespace by default, but you can change that using flags argument.

## Paraméterek

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

  Táblázat 1. Supported xattr flags

  `XATTR_CREATE` | Function will fail if extended attribute already exists.
  `XATTR_REPLACE` | Function will fail if extended attribute doesn't exist.
  `XATTR_DONTFOLLOW` | Do not follow the symbolic link but operate on symbolic link itself.
  `XATTR_ROOT` | Set attribute in root (trusted) namespace. Requires root privileges.

## Visszatérési értékek

Siker esetén `TRUE` értékkel tér vissza, ellenkező esetben `FALSE` értéket ad.

## Példák

Példa 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')); ?>`

## Lásd még

xattr_get()
xattr_remove()

Előző | Tartalom | Következő
xattr_remove | Fel | xattr_supported