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请问如何将多维数组转换为二维数组？
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比如无限级菜单，通过递归后是一个多维数组，我想把这个多维数组转换为二维数组并重新排序后进行foreach，请问这个function该如何写？
回复讨论(解决方案)
建议举例说明，这样清晰明了。
$a = array( 0=>array( 'categoryid'=>1, 'name'=>"AA1", 'parent'=>0, 'childs'=>array( 0=>array( 'categoryid'=>2, 'name'=>"BB1", 'parent'=>1, 'childs'=>array( 0=>array( 'categoryid'=>3, 'name'=>"CC", 'parent'=>2, 'childs'=>array( 0=>array( 'categoryid'=>4, 'name'=>"dd1", 'parent'=>3, ), 1=>array( 'categoryid'=>5, 'name'=>"dd2", 'parent'=>3, ), ), ), ), ), 1=>array( 'categoryid'=>6, 'name'=>"BB2", 'parent'=>1, ), ), ), 1=>array( 'categoryid'=>7, 'name'=>"AA2", 'parent'=>0, ));function imp($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 ))
重新组装一次就可以。
进行数组的重新拼接。
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(
请问大哥如果数组中没有childs标识怎么办？
递归已经把我递乱了~~
我的数组：
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" } }} 我擦，楼上的写错了~~还不能删除。。。
下面这个是我现在的。
array(2) { [0] => 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" [0] => 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" } [1] => 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" } [2] => 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" } } [1] => 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" [0] => 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" } [1] => 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" } [2] => 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" } }} 不一样是遍历吗？只是麻烦点，发现是数组就递归进入
如果想要具体代码，就请贴出 var_export 的结果
我只看看就可以了。
$a=array(
array('bbcc',array('ddd','ccc'))
,'aaa'
);
class getOneAr{
var $b;
function getvalue($a){
foreach($a as $v){
if(is_array($v)){
$this->getvalue($v);
}else{
$this->b[]=$v;
}
}
return $this->b;
}
}
$c=new getOneAr();
$b=$c->getvalue($a);
var_dump($b);
?>
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