ArrayObject::setFlags

(PHP 5 >= 5.1.0)

ArrayObject::setFlags — Sets the behavior flags.

说明

void ArrayObject::setFlags ( int $flags )

Set the flags that change the behavior of the ArrayObject.

参数

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

返回值

无返回值。

范例

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
print_r($fruitsArrayObject->lemons);
// Set the flag so that the array keys can be used as properties of the ArrayObject
$fruitsArrayObject->setFlags(ArrayObject::ARRAY_AS_PROPS);
// Try it again
print_r($fruitsArrayObject->lemons);

?>

上例将输出：

NULL
int(1)