is_numeric
is_real
Variable handling Funkcje
PHP Manual

# is_object

(PHP 4, PHP 5)

is_object — Finds whether a variable is an object

### Opis

bool is_object ( mixed `$var` )

Finds whether the given variable is an object.

### Parametry

`var`

  The variable being evaluated.

### Zwracane wartości

Returns `TRUE` if `var` is an object , `FALSE` otherwise.

### Przykłady

Przykład #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));
?>`

### Notatki

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

### Zobacz też:

- 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

is_numeric
is_real
Variable handling Funkcje
PHP Manual