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php generates infinite column tree

迷茫Original: 2017-03-26 10:17:583134browse

Column array:

$arr=Array(
    Array(&#39;cid&#39; => 2,&#39;cname&#39; => &#39;新闻&#39;,&#39;pid&#39; => 0),
    Array(&#39;cid&#39; => 4,&#39;cname&#39; =>&#39;体育&#39;,&#39;pid&#39; => 0),
    Array(&#39;cid&#39; => 5,&#39;cname&#39; => &#39;娱乐&#39;,&#39;pid&#39; => 0),
    Array(&#39;cid&#39; => 7,&#39;cname&#39; => &#39;热点新闻&#39;,&#39;pid&#39; =>2),
    Array(&#39;cid&#39; => 8,&#39;cname&#39; => &#39;小众新闻&#39;,&#39;pid&#39; => 2),
    Array(&#39;cid&#39; => 9,&#39;cname&#39; => &#39;民谣新闻&#39;,&#39;pid&#39; => 8),
);

rrree

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