ArrayObject::setFlags

    (PHP 5 >= 5.1.0, PHP 7, PHP 8)

    ArrayObject::setFlags — Sets the behavior flags

    说明

    publicArrayObject::setFlags(int$flags): void

    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
    valueconstant
    1ArrayObject::STD_PROP_LIST
    2ArrayObject::ARRAY_AS_PROPS

    返回值

    没有返回值。

    示例

    示例 #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);
    ?>

    以上示例会输出：

    NULL int(1)
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