php數組遞迴方法多個執行個體

php數組遞迴方法 有如下php數組： function genTree5($items) { foreach ($items as $item) $items[$item['pid']]['son'][$item['id']] = &$items[$item['id']]; return isset($items[0]['son']) ? $items[0]['son'] : array(); } 複製代碼 方法二： function findChild($arr,$id){ $childs=array(); foreach ($arr as $k => $v){ if($v['pid']== $id){ $childs[]=$v; } } // echo " ";print_r($childs);die(); return $childs; } function build_tree($root_id){ global $items; $childs =array(); $childs=findChild($items,$root_id); // print_r($childs); // die(); if(empty($childs)){ return null; } foreach ($childs as $k => $v){ $rescurTree=build_tree($v['id']); if( null != $rescurTree){ $childs[$k]['son']=$rescurTree; } } return $childs; } 複製代碼

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