PHP 8.3.0 RC 6 available for testing

NoRewindIterator::__construct

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

NoRewindIterator::__constructConstruct a NoRewindIterator

说明

public NoRewindIterator::__construct(Iterator $iterator)

Constructs a NoRewindIterator.

参数

iterator

The iterator being used.

示例

示例 #1 NoRewindIterator::__construct() example

The second loop does not output because the iterator is only used once, as it does not rewind.

<?php
$fruit
= array('apple', 'banana', 'cranberry');

$arr = new ArrayObject($fruit);
$it = new NoRewindIterator($arr->getIterator());

echo
"Fruit A:\n";
foreach(
$it as $item ) {
echo
$item . "\n";
}

echo
"Fruit B:\n";
foreach(
$it as $item ) {
echo
$item . "\n";
}
?>

以上示例的输出类似于:

 
Fruit A:
apple
banana
cranberry
Fruit B:

参见

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