Finds whether a variable is an object

is_object

(PHP 4, PHP 5, PHP 7)

is_objectFinds whether a variable is an object

Description

bool is_object ( mixed $var )

Finds whether the given variable is an object.

Parameters

var

The variable being evaluated.

Return Values

Returns TRUE if var is an object, FALSE otherwise.

Examples

Example #1 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));
?>

Changelog

Version Description
7.2.0 is_object() now returns TRUE for unserialized objects without a class definition (class of __PHP_Incomplete_Class). Previously FALSE was returned.

See Also

  • is_bool() - Finds out whether a variable is a boolean
  • is_int() - Find whether the type of a variable is integer
  • is_float() - Finds whether the type of a variable is float
  • is_string() - Find whether the type of a variable is string
  • is_array() - Finds whether a variable is an array