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このドキュメントでは、 php中国語ネットマニュアル リリース
(PHP 5 >= 5.1.0)
SeekableIterator::seek — Seeks to a position
$position
)Seeks to a given position in the iterator.
position
The position to seek to.
没有返回值。
Implementations should throw an OutOfBoundsException
if the position
is not seekable.
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 ();
?>
以上例程的输出类似于:
damson