PHP get_class_vars() Function

Last Updated : 28 Apr, 2025

The get_class_vars() function is an inbuilt function in PHP which is used to get the default properties of a class.

Syntax:

array get_class_vars(string $class)

Parameters: This function accepts one parameter that is described below:

$class: This parameter specifies the name of the class.

Return Value: This function returns an associative array like "var name => value" if the get_class_vars() function is successful otherwise it will return "false".

Example 1: This example demonstrates the basic use of the get_class_vars() function.

PHP

<?php
    class GeeksforGeeks{
          var $var1 = "" ; 
          var $var2 = "Geeks" ;
        
          function __construct(){
               $this->var1 ="Articles" ;
               $this->var2 = "GeeksforGeeks" ;
               return true ;
          }
    }
    
    $ob = new GeeksforGeeks() ;
    $array = get_class_vars(get_class($ob));

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

Output:

var1 : 
var2 : Geeks

Example 2: This is another example that demonstrates the use of the get_class_vars() function.

PHP

<?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'));
?>