(PHP 8 >= 8.4.0)
SplObjectStorage::seek — Seeks iterator to a position
offset没有返回值。
Throws an OutOfBoundsException
if the offset is not seekable.
示例 #1 SplObjectStorage::seek() example
Seeks to item position 2 in the iterator.
<?php
class Test {
public function __construct(public string $marker) {}
}
$a = new Test("a");
$b = new Test("b");
$c = new Test("c");
$storage = new SplObjectStorage();
$storage[$a] = "first";
$storage[$b] = "second";
$storage[$c] = "third";
$storage->seek(2);
var_dump($storage->key());
var_dump($storage->current());
?>以上示例会输出：
int(2)
object(Test)#3 (1) {
["marker"]=>
string(1) "c"
}