ArrayObject::getIterator

(PHP 5, PHP 7, PHP 8)

ArrayObject::getIterator — Create a new iterator from an ArrayObject instance

说明

public ArrayObject::getIterator(): Iterator

Create a new Iterator (default is ArrayIterator) from an ArrayObject instance.

参数

此函数没有参数。

返回值

An iterator from an ArrayObject.

示例

示例 #1 ArrayObject::getIterator() example

<?php

$array = [
    '1' => 'one',
    '2' => 'two',
    '3' => 'three',
];

$arrayobject = new ArrayObject($array);

$iterator = $arrayobject->getIterator();

while ($iterator->valid()) {
    echo $iterator->key() . ' => ' . $iterator->current() . "\n";

    $iterator->next();
}

?>

以上示例会输出：

1 => one
2 => two
3 => three