CallbackFilterIterator::__construct()
(PHP 5>=5.4.0,PHP 7)
Create a filtered iterator from another iterator
说明
Creates a filtered iterator using the$callbackto determine which items are accepted or rejected.
参数
- $iterator
The iterator to be filtered.
- $callback
The callback,which should return
TRUE
to accept the current item orFALSE
otherwise.SeeExamples.May be any valid
callablevalue.
返回值
没有返回值。
参见
- CallbackFilterIterator Examples
- CallbackFilterIterator::accept() Calls the callback with the current value,the current key and the inner iterator as arguments