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(PHP 3 >= 3.0.7, PHP 4, PHP 5)

wddx_serialize_vars -- Serialize variables into a WDDX packet

Description

string wddx_serialize_vars ( mixed var_name [, mixed ...] )

wddx_serialize_vars() is used to create a WDDX packet with a structure that contains the serialized representation of the passed variables.

wddx_serialize_vars() takes a variable number of arguments, each of which can be either a string naming a variable or an array containing strings naming the variables or another array, etc.

Example 1. wddx_serialize_vars() example

<?php
$a = 1;
$b = 5.5;
$c = array("blue", "orange", "violet");
$d = "colors";

$clvars = array("c", "d");
echo wddx_serialize_vars("a", "b", $clvars);
?>

The above example will produce:

<wddxPacket version='1.0'><header/><data><struct><var name='a'><number>1</number></var>
<var name='b'><number>5.5</number></var><var name='c'><array length='3'>
<string>blue</string><string>orange</string><string>violet</string></array></var>
<var name='d'><string>colors</string></var></struct></data></wddxPacket>

CXLII. xattr Functions

Introduction

The xattr extension allows for the manipulation of extended attributes on a filesystem.

Requirements

To use xattr, you will need libattr installed. It is available at http://oss.sgi.com/projects/xfs/ .

Installation

xattr is currently available through PECL http://pecl.php.net/package/xattr .

If PEAR is available on your *nix-like system you can use the pear installer to install the xattr extension, by the following command: pear -v install xattr .

You can always download the tar.gz package and install xattr by hand:

Example 1. xattr install by hand

gunzip xattr-xxx.tgz
tar -xvf xattr-xxx.tar
cd xattr-xxx
phpize
./configure && make && make install

Predefined Constants

The constants below are defined by this extension, and will only be available when the extension has either been compiled into PHP or dynamically loaded at runtime.

XATTR_ROOT ( integer )

Set attribute in root (trusted) namespace. Requires root privileges.

XATTR_DONTFOLLOW ( integer )

Do not follow the symbolic link but operate on symbolic link itself.

XATTR_CREATE ( integer )

Function will fail if extended attribute already exists.

XATTR_REPLACE ( integer )

Function will fail if extended attribute doesn't exist.

Table of Contents xattr_get  --  Get an extended attribute xattr_list  --  Get a list of extended attributes xattr_remove  --  Remove an extended attribute xattr_set  --  Set an extended attribute xattr_supported  --  Check if filesystem supports extended attributes

Related Function(s)

xattr_get()

xattr_list()

xattr_remove()

xattr_set()

xattr_supported()