为何递归不起作用? 郁闷了

Array

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            [2] => 关于我们

            [catname] => 关于我们

            [3] => 4

            [listorder] => 4

            [4] => 0

            [items] => 0

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            [type] => 1

            [child] => Array

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                            [1] => 1

                            [parentid] => 1

                            [2] => 关于我们

                            [catname] => 关于我们

                            [3] => 1

                            [listorder] => 1

                            [4] => 0

                            [items] => 0

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                    [1] => Array

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                            [catid] => 3

                            [1] => 1

                            [parentid] => 1

                            [2] => 公司荣誉

                            [catname] => 公司荣誉

                            [3] => 2