Forgot Password ??

PHP , ASP , ASP.NET, VB.NET, C#, Java , jQuery , Android , iOS , Windows Phone

	Registered : 109,027

HOME > PHP Manual > xattr_set - Set an extended attribute

ลองใช้ค้นหาข้อมูล

xattr_set

(PECL xattr:0.9-1.0)

xattr_set — Set an extended attribute

Description

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. The user namespace is available to all users, while the root namespace is available only to users with root privileges. xattr operates on the user namespace by default, but this can be changed with the flags parameter.

Parameters

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

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.

Return Values

Returns TRUE on success or FALSE on failure.

Examples

Example #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')); 
?>

	สอน Google Maps Api
	สอน Windows Service
	สอน Entity Framework
	สอน Android
	สอน Java เขียน Java
	Java GUI Swing
	สอน JSP (Web App)
	iOS (iPhone,iPad)
	Windows Phone
	Windows Azure
	Windows Store
	Laravel Framework
	Yii PHP Framework
	สอน jQuery
	สอน jQuery กับ Ajax
	สอน PHP OOP (Vdo)
	Ajax Tutorials
	SQL Tutorials
	สอน SQL (Part 2)
	JavaScript Tutorial
	Javascript Tips
	VBScript Tutorial
	VBScript Validation
	Microsoft Access
	MySQL Tutorials
	-- Stored Procedure
	MariaDB Database
	SQL Server Tutorial
	SQL Server 2005
	SQL Server 2008
	SQL Server 2012
	-- Stored Procedure
	Oracle Database
	-- Stored Procedure
	SVN (Subversion)
	แนวทางการทำ SEO
	ปรับแต่งเว็บให้โหลดเร็ว