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Variable handling Functions

is_object

(PHP 4, PHP 5)

is_object — Finds 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));
?>

Notes

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

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

Variable handling Functions