PHP 8.3.0 RC 6 available for testing

ArrayObject::getIterator

(PHP 5, PHP 7, PHP 8)

ArrayObject::getIteratorCreate a new iterator from an ArrayObject instance

说明

public ArrayObject::getIterator(): Iterator

Create a new iterator 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
= 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

add a note

User Contributed Notes 1 note

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1
doug at centraldesktop
10 years ago
ArrayObject iterator class requires a child of ArrayObject or ArrayIterator

<?php

class MyIterator implements Iterator {

public
function
__construct(ArrayObject $array, $flags = 0) {
// ...
}

public
function
current() {
// ..
}

public
function
next() {
// ..
}

public
function
key() {
// ..
}

public
function
valid() {
// ..
}

public
function
rewind() {
// ..
}
}

$obj = new ArrayObject(array(), 0, 'MyIterator');
$obj->getIterator();

?>

PHP Fatal error: ArrayObject::getIterator(): Internal compiler error, Class is not child of ArrayObject or ArrayIterator in php shell code on line 1
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