(PHP 5 >= 5.4.0, PHP 7)
Create a filtered iterator from another iterator
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.
Returns:
No value is returned.
See also:
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