CallbackFilterIterator::__construct

CallbackFilterIterator::__construct

(PHP 5 >= 5.4.0, PHP 7, PHP 8)

CallbackFilterIterator::__construct — Create a filtered iterator from another iterator

Description

public CallbackFilterIterator::__construct(Iterator $iterator, callable $callback)

Creates a filtered iterator using the callback to determine which items are accepted or rejected.

Parameters

iterator

The iterator to be filtered.

callback

The callback, which should return true to accept the current item or false otherwise. See Examples.

May be any valid callable value.

Return Values

No value is returned.

See Also

• CallbackFilterIterator Examples
• CallbackFilterIterator::accept() - Calls the callback with the current value, the current key and the inner iterator as arguments

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https://www.php.net/manual/en/callbackfilteriterator.construct.php