is_object

(PHP 4, PHP 5, PHP 7, PHP 8)

is_object — Finds whether a variable is an object

Description

is_object(mixed $value): bool

Finds whether the given variable is an object.

Parameters

value

The variable being evaluated.

Return Values

Returns true if value is an object, false otherwise.

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.

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));
?>

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