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这样的数组如何让它树状显示呢

WBOYOriginal: 2016-06-13 12:38:26808browse

这样的数组怎么让它树状显示呢？

Array<br>
(<br>
    [1] => Array<br>
        (<br>
            [id] => 1<br>
            [name] => 世界<br>
            [pid] => 0<br>
            [2] => Array<br>
                (<br>
                    [id] => 2<br>
                    [name] => 中国<br>
                    [pid] => 1<br>
                    [4] => Array<br>
                        (<br>
                            [id] => 4<br>
                            [name] => 湖南<br>
                            [pid] => 2<br>
                        )<br>
<br>
                )<br>
<br>
            [3] => Array<br>
                (<br>
                    [id] => 3<br>
                    [name] => 美国<br>
                    [pid] => 1<br>
                )<br>
 <div class="clear">
                 
              
              
        
            </div>

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这样的数组如何让它树状显示呢

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