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1.1       misho       1: --TEST--
                      2: SPL: RecursiveIteratorIterator::getSubIterator() with explicit level parameter
                      3: --CREDITS--
                      4: Matt Raines matt@raines.me.uk
                      5: #testfest London 2009-05-09
                      6: --FILE--
                      7: <?php
                      8: $sample_array = array(1, 2, array(3, 4));
                      9: 
                     10: $iterator = new RecursiveIteratorIterator(new RecursiveArrayIterator($sample_array));
                     11: 
                     12: $iterator->next();
                     13: $iterator->next();
                     14: $iterator->next();
                     15: var_dump($iterator->getSubIterator(-1));
                     16: var_dump($iterator->getSubIterator(0)->getArrayCopy());
                     17: var_dump($iterator->getSubIterator(1)->getArrayCopy());
                     18: var_dump($iterator->getSubIterator(2));
                     19: ?>
                     20: --EXPECT--
                     21: NULL
                     22: array(3) {
                     23:   [0]=>
                     24:   int(1)
                     25:   [1]=>
                     26:   int(2)
                     27:   [2]=>
                     28:   array(2) {
                     29:     [0]=>
                     30:     int(3)
                     31:     [1]=>
                     32:     int(4)
                     33:   }
                     34: }
                     35: array(2) {
                     36:   [0]=>
                     37:   int(3)
                     38:   [1]=>
                     39:   int(4)
                     40: }
                     41: NULL
                     42: