get_class_vars

(PHP 4, PHP 5, PHP 7, PHP 8)

get_class_vars — Get the default properties of the class

Description

get_class_vars(string $class): array

Get the default properties of the given class.

Parameters

class

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.

Examples

Example #1 get_class_vars() example

<?php

class MyClass
{
public $var1; // This has no explicit default value (technically it has NULL as a default)...
public $var2 = "xyz";
public $var3 = 100;
private $var4;

public function __construct()
{
// 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}: ", var_export($value, true), "\n";
}

?>

The above example will output:

var1: NULL
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'));

?>

The above example will output:

// 5.0.0
a| * b| TestCase c
a| * b| TestCase c

// 5.0.1 - 5.0.2
a|b|c
a|b|c

// 5.0.3 +
a|b|c
a

See Also