たとえば、再帰後の無限レベルのメニューは多次元配列であり、foreach を実行する前にこの多次元配列を 2 次元配列に変換したいのですが、この関数はどのように記述すればよいでしょうか。
わかりやすくするために例を示すことをお勧めします。
$a = array( 0=>array( 'categoryid'=>1, 'name'=>"AA1", 'parent'=>0, 'childs'=>array( 0=>array( 'categoryid'=>2, 'name'=>"BB1", 'parent'=>1, 'childs'=>array( 0=>array( 'categoryid'=>3, 'name'=>"CC", 'parent'=>2, 'childs'=>array( 0=>array( 'categoryid'=>4, 'name'=>"dd1", 'parent'=>3, ), 1=>array( 'categoryid'=>5, 'name'=>"dd2", 'parent'=>3, ), ), ), ), ), 1=>array( 'categoryid'=>6, 'name'=>"BB2", 'parent'=>1, ), ), ), 1=>array( 'categoryid'=>7, 'name'=>"AA2", 'parent'=>0, ));function imp($tree, $children='childs') { $imparr = array(); foreach($tree as $w) { if(isset($w[$children])) { $t = $w[$children]; unset($w[$children]); $imparr[] = $w; if(is_array($t)) $imparr = array_merge($imparr, imp($t, $children)); } else { $imparr[] = $w; } } return $imparr;}print_r(imp($a));
Array( [0] => Array ( [categoryid] => 1 [name] => AA1 [parent] => 0 ) [1] => Array ( [categoryid] => 2 [name] => BB1 [parent] => 1 ) [2] => Array ( [categoryid] => 3 [name] => CC [parent] => 2 ) [3] => Array ( [categoryid] => 4 [name] => dd1 [parent] => 3 ) [4] => Array ( [categoryid] => 5 [name] => dd2 [parent] => 3 ) [5] => Array ( [categoryid] => 6 [name] => BB2 [parent] => 1 ) [6] => Array ( [categoryid] => 7 [name] => AA2 [parent] => 0 ))
一度組み立て直すだけです。
配列の再スプライシングを実行します。
function imp($tree, $children='childs') { $imparr = array(); foreach($tree as $w) { if(isset($w[$children])) { $t = $w[$children]; unset($w[$children]); $imparr[] = $w; if(is_array($t)) $imparr = array_merge($imparr, imp($t, $children)); } else { $imparr[] = $w; } } return $imparr;}print_r(imp($a));
Array(
array(2) { ["0childs"] => array(9) { ["cate_id"] => string(1) "5" ["cate_title"] => string(12) "古剑奇谭" ["cate_pid"] => string(1) "0" ["cate_type"] => string(7) "Article" ["cate_type2"] => NULL ["cate_sort"] => string(1) "1" ["0childs"] => array(6) { ["cate_id"] => string(1) "7" ["cate_title"] => string(12) "百里屠苏" ["cate_pid"] => string(1) "5" ["cate_type"] => string(7) "Article" ["cate_type2"] => NULL ["cate_sort"] => string(1) "2" } ["1childs"] => array(6) { ["cate_id"] => string(1) "8" ["cate_title"] => string(6) "晴雪" ["cate_pid"] => string(1) "5" ["cate_type"] => string(7) "Article" ["cate_type2"] => NULL ["cate_sort"] => string(1) "5" } ["2childs"] => array(6) { ["cate_id"] => string(1) "9" ["cate_title"] => string(6) "少恭" ["cate_pid"] => string(1) "5" ["cate_type"] => string(7) "Article" ["cate_type2"] => NULL ["cate_sort"] => string(1) "6" } } ["1childs"] => array(9) { ["cate_id"] => string(2) "10" ["cate_title"] => string(12) "天龙八部" ["cate_pid"] => string(1) "0" ["cate_type"] => string(7) "Article" ["cate_type2"] => NULL ["cate_sort"] => string(1) "2" ["0childs"] => array(6) { ["cate_id"] => string(2) "11" ["cate_title"] => string(6) "萧峰" ["cate_pid"] => string(2) "10" ["cate_type"] => string(7) "Article" ["cate_type2"] => NULL ["cate_sort"] => string(1) "2" } ["1childs"] => array(6) { ["cate_id"] => string(2) "12" ["cate_title"] => string(6) "虚竹" ["cate_pid"] => string(2) "10" ["cate_type"] => string(7) "Article" ["cate_type2"] => NULL ["cate_sort"] => string(1) "3" } ["2childs"] => array(6) { ["cate_id"] => string(2) "13" ["cate_title"] => string(9) "慕容复" ["cate_pid"] => string(2) "10" ["cate_type"] => string(7) "Article" ["cate_type2"] => NULL ["cate_sort"] => string(1) "4" } }}
消去しました、2階に書かれたものは間違っていました~~ まだ削除できません。 。 。
以下は私が今持っているものです。
りー
トラバーサルとは違うのですか?ちょっと面倒ですが、配列だとわかったら再帰してください
具体的なコードが必要な場合は、var_export の結果を投稿してください
$a=array(
array('bbcc',array('ddd','ccc'))
,'aaa'
);
class getOneAr{
var $b; $a){
foreach($a as $v){
if(is_array($v)){
$this->getvalue($v);
}else{
$this->b[]= $v; }
}
$this->b; }
}
$c=new getOneAr();
var_dump($b); ;
?>