is_object

(PHP 4, PHP 5, PHP 7)

Finds whether a variable is an object

bool is_object ( mixed $var )

Finds whether the given variable is an object.

Parameters:

var

The variable being evaluated.

Returns:

Returns TRUE if var is an object, FALSE otherwise.

Notes:

This function will return FALSE if used on an unserialized object where the class definition is not present (even though gettype() returns object).

Examples:

is_object() example

<?php
// Declare a simple function to return an 
// array from our object
function get_students($obj)
{
    if (!is_object($obj)) {
        return false;
    }

    return $obj->students;
}

// Declare a new class instance and fill up 
// some values
$obj = new stdClass();
$obj->students = array('Kalle', 'Ross', 'Felipe');

var_dump(get_students(null));
var_dump(get_students($obj));
?>