ArrayObject::serialize
ArrayObject::setIteratorClass
ArrayObject
PHP Manual

# ArrayObject::setFlags

Sets the behavior flags.

### Description

public void ArrayObject::setFlags ( int `$flags` )

Set the flags that change the behavior of the ArrayObject.

### Parameters

`flags`

  The new ArrayObject behavior. It takes on either a bitmask, or named constants. Using named constants is strongly encouraged to ensure compatibility for future versions.

  The available behavior flags are listed below. The actual meanings of these flags are described in the predefined constants.

  ArrayObject behavior flags
  value | constant
  --- | ---
  1 | ArrayObject::STD_PROP_LIST
  2 | ArrayObject::ARRAY_AS_PROPS

### Return Values

No value is returned.

### Examples

Example #1 ArrayObject::setFlags example

`<?php
// Array of available fruits
$fruits = array("lemons" => 1, "oranges" => 4, "bananas" => 5, "apples" => 10);
$fruitsArrayObject = new ArrayObject($fruits);
// Try to use array key as property
var_dump($fruitsArrayObject->lemons);
// Set the flag so that the array keys can be used as properties of the ArrayObject
$fruitsArrayObject->setFlags(ArrayObject::ARRAY_AS_PROPS);
// Try it again
var_dump($fruitsArrayObject->lemons);
?>`

The above example will output:

    NULL
    int(1)