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get_object_vars — Gets an object's member variables, along with the variables' current values.


array get_object_vars(obj);
object obj: Class for which you want to find the member variable names


Associative array; FALSE if obj is not an object


get_object_vars() finds the names of the member variables for a given object and returns them as an associative array containing the name of an object's member variables as array keys and the values of the member variables as array values.


PHP Version: 4.0RC1+


Example 106. Get the names and values of the member variables for an object

class location {
    var $x_axis = 0;
    var $y_axis = 0;
    var $z_axis = 0;
    function location ($x, $y, $z) {
        $this->x_axis = $x;
        $this->y_axis = $y;
        $this->z_axis = $z;
        $this->product = $x * $y * $z;

$object = new location (1, 2, 3);

// Find the member variables of the location class
$var_names = get_object_vars ($object);

// Display the member variable names
print "<pre>\$object has the following member variables:\n\n";
print_r ($var_names);
print '</pre>';

PHP Functions Essential Reference. Copyright © 2002 by New Riders Publishing (Authors: Zak Greant, Graeme Merrall, Torben Wilson, Brett Michlitsch). This material may be distributed only subject to the terms and conditions set forth in the Open Publication License, v1.0 or later (the latest version is presently available at The authors of this book have elected not to choose any options under the OPL. This online book was obtained from and is designed to provide information about the PHP programming language, focusing on PHP version 4.0.4 for the most part. The information is provided on an as-is basis, and no warranty or fitness is implied. All persons and entities shall have neither liability nor responsibility to any person or entity with respect to any loss or damage arising from the information contained in this book.

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