PHP Manual: Get the default properties of the class

Description

array get_class_vars ( string $class_name )

Get the default properties of the given class.

Parameters

class_name: The class name

Return Values

Returns an associative array of declared properties visible from the current scope, with their default value. The resulting array elements are in the form of varname => value. In case of an error, it returns FALSE.

Changelog

Version	Description
5.0.3	Depending on the scope, get_class_vars will only return the properties that can be accessed from the current scope.
5.0.2	Calling get_class_vars will now expose all the properties as an array, unlike previous behaviour where protected and private properties were prefixed with nul bytes.
5.0.1	Calling get_class_vars will expose all properties, as when converting an object to a class.
4.2.0	Uninitialized class variables are now also reported by get_class_vars.

Examples

Example #1 get_class_vars example


<?php

class myclass {

    var $var1; // this has no default value...
    var $var2 = "xyz";
    var $var3 = 100;
    private $var4; // PHP 5

    // constructor
    function myclass() {
        // change some properties
        $this->var1 = "foo";
        $this->var2 = "bar";
        return true;
    }

}

$my_class = new myclass();

$class_vars = get_class_vars(get_class($my_class));

foreach ($class_vars as $name => $value) {
    echo "$name : $value\n";
}

?>

The above example will output:

// Before PHP 4.2.0
var2 : xyz
var3 : 100

// As of PHP 4.2.0
var1 :
var2 : xyz
var3 : 100

Example #2 get_class_vars and scoping behaviour


<?php
function format($array)
{
    return implode('|', array_keys($array)) . "\r\n";
}

class TestCase
{
    public $a    = 1;
    protected $b = 2;
    private $c   = 3;

    public static function expose()
    {
        echo format(get_class_vars(__CLASS__));
    }
}

TestCase::expose();
echo format(get_class_vars('TestCase'));
?>