(PHP 4, PHP 5)
get_class_vars — Get the default properties of the class
Get the default properties of the given class.
The class name
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.
| 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. |
| Prior to 4.2.0 | Uninitialized class variables will not be reported by get_class_vars() |
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'));
?>
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