3v4l.org/U61Ii

php-bug-74142.txt

LimitIterator_::rewind			rewind at the beginning of the foreach...
> TestFilterIterator_::rewind		...and the inner iterator
> > ArrayIterator_::rewind		...and again. now testfilteriterator must look for the first accept()able value
> > ArrayIterator_::valid		iterate on arrayiterator...
> > ArrayIterator_::current		...
> > ArrayIterator_::key			...
> > TestFilterIterator_::accept		...and test the first value it found
accept					(call #1 on [0]=>'0')
> > ArrayIterator_::next		value ('0') was not accepted
> > ArrayIterator_::valid		continue iterating...
> > ArrayIterator_::current		...
> > ArrayIterator_::key			...
> > TestFilterIterator_::accept		...and test again. this time it will be valid
accept					(call #2 on [1]=>'a')
> TestFilterIterator_::valid		limititerator validates the testfilteriterator
> TestFilterIterator_::valid		and begins its own iteration...
> TestFilterIterator_::current		...
> TestFilterIterator_::key		...
LimitIterator_::valid			foreach begins iteration...
LimitIterator_::current			...
LimitIterator_::key			...
array(2) {				and the body of the loop begins
  [0]=>
  int(1)
  [1]=>
  string(1) "a"
}
LimitIterator_::next			foreach moves to the next element...
> TestFilterIterator_::next		...
> > ArrayIterator_::next		...and now testfilteriterator must find the next accept()able value
> > ArrayIterator_::valid		continue iteration...
> > ArrayIterator_::current		...
> > ArrayIterator_::key			...
> > TestFilterIterator_::accept		...and test this value
accept					(call #3 on [2]=>'0')
> > ArrayIterator_::next		not accepted, keep going...
> > ArrayIterator_::valid		...
> > ArrayIterator_::current		...
> > ArrayIterator_::key			...
> > TestFilterIterator_::accept		...until this value is accepted
accept					(call #4 on [3]=>'b')
> TestFilterIterator_::valid		limititerator validates testfilteriterator again...
> TestFilterIterator_::current		...
> TestFilterIterator_::key		...
LimitIterator_::valid			foreach resumes the loop...
LimitIterator_::current			...
LimitIterator_::key			...
array(2) {				loop body
  [0]=>
  int(3)
  [1]=>
  string(1) "b"
}
LimitIterator_::next			continue iteration...
> TestFilterIterator_::next		...
> > ArrayIterator_::next		...and validate...
> > ArrayIterator_::valid		...
> > ArrayIterator_::current		...
> > ArrayIterator_::key			...
> > TestFilterIterator_::accept		...this value fails
accept					(call #5 on [4]=>'0')
> > ArrayIterator_::next		resume...
> > ArrayIterator_::valid		...
> > ArrayIterator_::current		...
> > ArrayIterator_::key			...
> > TestFilterIterator_::accept		...this value passes
accept					(call #6 on [5]=>'c')
LimitIterator_::valid			limititerator fails validation because it has passed the limit of 2 items and the loop ends