php 實現無限分類執行個體代碼(遞迴)

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這篇文章主要介紹了php遞迴方法實現無限分類執行個體代碼,需要的朋友可以參考下

數組:

代碼如下:

$items = array( array('id' => 1, 'pid' => 0, 'name' => '一級11' ), array('id' => 11, 'pid' => 0, 'name' => 'www.jb51.net 一級12' ), array('id' => 2, 'pid' => 1, 'name' => '二級21' ), array('id' => 10, 'pid' => 11, 'name' => '二級22' ), array('id' => 3, 'pid' => 1, 'name' => '二級23' ), array('id' => 12, 'pid' => 11, 'name' => '二級24' ), array('id' => 13, 'pid' => 12, 'name' => '三級31' ), array('id' => 9, 'pid' => 1, 'name' => '二級25' ),);

函數:

代碼如下:

function formatTree($array, $pid = 0){ $arr = array(); $tem = array(); foreach ($array as $v) {  if ($v['pid'] == $pid) {   $tem = formatTree($array, $v['id']);                        //判斷是否存在子數組   $tem && $v['son'] = $tem;   $arr[] = $v;  } } return $arr;}
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