Hi internals,
here goes some interface fun :
class FubarOK has no problem implementing Iterator. interface NewIterator just
extends Iterator and adds nothing, and here comes the fun - an error message
when FubarProblem tries to implement NewIterator.
Code :
<?php
class FubarOk implements Iterator {
public function next(){}
public function key(){}
public function current(){}
public function hasMore(){}
public function rewind(){}
}
interface NewIterator extends Iterator {
}
class FubarProblem implements NewIterator {
public function next(){}
public function key(){}
public function current(){}
public function hasMore(){}
public function rewind(){}
}
?>
Output :
PHP Fatal error: Class FubarProblem must implement interface Traversable as
part of either Iterator or IteratorAggregate in Unknown on line 0
regards,
Andrey
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