iterator_to_array — 将迭代器复制到数组中
array iterator_to_array ( Traversable $iterator [, bool $use_keys = true ] )
这个函数适用于所有实现了Traversable 接口的对象,但是为什么在下面的代码中我得到了错误的输入:
$data = array(
0 => array(
0 => 1,
),
1 => array(
0 => 2,
),
2 => array(
0 => 3,
1 => 4,
2 => 5,
),
3 => array(
0 => 6,
),
4 => array(
0 => 7,
),
);
$it = new RecursiveIteratorIterator(new RecursiveArrayIterator($data));
echo PHP_EOL, iterator_count($it); // 7 total correct
echo PHP_EOL, implode(iterator_to_array($it)); //745 instead of 1234567
echo PHP_EOL, implode(iterator_to_array($it, true)); //745 instead of 1234567
但是,
foreach($it as $v)
{
echo $v ;
}
输出
1234567
RecursiveArrayIterator
,但是你完全可以放弃它,改用array_walk_recursive()
代替 =D - Ja͢ck