文字
RecursiveCallbackFilterIterator::__construct
(PHP 5 >= 5.4.0)
RecursiveCallbackFilterIterator::__construct — Create a RecursiveCallbackFilterIterator from a RecursiveIterator
说明
public RecursiveCallbackFilterIterator::__construct
( RecursiveIterator
$iterator
, string $callback
)
Creates a filtered iterator from a RecursiveIterator
using the callback to determine which
items are accepted or rejected.
参数
-
iterator -
The recursive iterator to be filtered.
-
callback -
The callback, which should return
TRUEto accept the current item orFALSEotherwise. See Examples.May be any valid callable value.
返回值
没有返回值。
参见
- RecursiveCallbackFilterIterator Examples
- RecursiveCallbackFilterIterator::getChildren() - Return the inner iterator's children contained in a RecursiveCallbackFilterIterator
- RecursiveCallbackFilteriterator::hasChildren() - Check whether the inner iterator's current element has children