SeekableIterator::seek
(PHP 5 >= 5.1.0)
SeekableIterator::seek — Seeks to a position
說明
abstract public void SeekableIterator::seek
( int
$position
)Seeks to a given position in the iterator.
參數
-
position -
The position to seek to.
回傳值
無回傳值。
錯誤/例外
Implementations should throw an OutOfBoundsException
if the position is not seekable.
範例
Example #1 SeekableIterator::seek() example
Seek to the item at position 3 in the iterator (ArrayIterator implements SeekableIterator).
<?php
$array = array("apple", "banana", "cherry", "damson", "elderberry");
$iterator = new ArrayIterator($array);
$iterator->seek(3);
echo $iterator->current();
?>
上例的輸出類似於：
damson
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