Php/docs/callbackfilteriterator.construct
来自菜鸟教程
CallbackFilterIterator::__construct
(PHP 5 >= 5.4.0, PHP 7)
CallbackFilterIterator::__construct — Create a filtered iterator from another iterator
说明
Creates a filtered iterator using the callback
to
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. See Examples.May be any valid callable value.
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