Question

整晚都在打架。放弃。我在mysql中有一个相邻的表：

id, parentid,name,design,path,sort

深度最大为4，使用mysql查询，我将结果打印成UL列表成功。从那里，项目被添加，排序和编辑以及删除。然后当单击按钮时，我将结果发送回php。发送的数据是JSON，它确实收到了。

json_decode()提供以下示例：

Array ( [0] => Array ( [cls] => [path] => # [id] => 1 [name] =>BLOCKA  ) [1] => Array ( [cls] => [path] => # [id] => 2 [name] => BLOCKB [children] => Array ( [0] => Array ( [cls] => [path] => # [id] => 3 [name] => CLASSB1 [children] => Array ( [0] => Array ( [cls] => [path] => # [id] => 7 [name] => CLASSB12 ) ) ) [1] => Array ( [cls] => [path] => # [id] => 4 [name] => CLASSSB13 [children] => Array ( [0] => Array ( [cls] => [path] => # [id] => 5 [name] => CLASSB4 ) [1] => Array ( [cls] => [path] => # [id] => 6 [name] => CLASSB5 ) ) ) ) ) )

图形：

BLOCKA BLOCKB CLASSB1 CLASSB3 ...

我正在使用jquery.nested

现在我的问题是循环遍历数组，获取父级的id然后添加子级。

我最亲近的是

function dissect($blocks) {
    if (!is_array($blocks)) {
        echo $blocks;
        return;
    }

    foreach($blocks as $block) {
        dissect($block);
    }
}

它会处理每个元素，但不会按照我想要的方式处理。对不起，我的英语很糟糕...任何帮助都将不胜感激。

Answer 1

首先遍历获取父级的块，如果父级块中存在子级，则遍历子级。

可能还有其他更好的方法来实现这一点，您可以尝试下面的代码：

//#1 Use the dict to iterate through them
foreach (KeyValuePair<string, Rectangle> rect in rectangleDict)
{
    Console.WriteLine(rect.Key);    
    //iterate through any property in the rectangle such as its sides, name, etc
    Console.WriteLine(rect.Value.name);
}

//#2 use the key directly to access a property
Console.WriteLine(rectangleDict["rectangle1"].name);

输出：

$blocks = array ( 
"0" => array ( 
    "cls" => "",
    "path" => array( 
        "id" => 1,
        "name" =>"BLOCKA",
        ) 
    ), 
"1" => array ( 
    "cls" => "",
    "path" => array( 
        "id" => 2,
        "name" => "BLOCKB" ,
        "children" => array ( 
            "0" => array ( 
                "cls" => "",
                "path" => array( 
                    "id" => 3,
                    "name" => "CLASSB1" ,
                    "children" => array ( 
                        "0" => array ( 
                            "cls" => "",
                            "path" => array( 
                                "id" => 7,
                                "name" => "CLASSB12" ,
                                ),
                            ),
                        ), 
                    ),
                ),
            "1" => array ( 
                "cls" => "",
                "path" => array( 
                    "id" => 4,
                    "name" => "CLASSSB13" ,
                    "children" => array ( 
                        "0" => array ( 
                            "cls" => "",
                            "path" => array( 
                                "id" => 5,
                                "name" => "CLASSB4" ,
                                ),
                            ), 
                        "1" => array ( 
                            "cls" => "",
                            "path" => array( 
                                "id" => 6,
                                "name" => "CLASSB5",
                                ), 
                            ), 
                        ), 
                    ),
                ), 
            ),
        ), 
    ), 
) ;

echo "<pre>";

/*loop through blocks*/
foreach ($blocks as $key => $block) {
    echo $block['path']['name'].'<br/>'; /* echo parent*/
    if (isset($block['path']['children'])) {
        loopChildren($block['path']['children']); /* children loop*/
    }
}

/*Loop through childrens*/
function loopChildren($childrens, $prefix = '-')
{
    foreach ($childrens as $key => $child) {
        getChild($child, $prefix);
    }
}

/*Get the child and loop sub-children if exist*/
function getChild($child, $prefix='-')
{ 
    echo $prefix. $child['path']['name'].'<br/>'; /*echo child*/
    if (isset($child['path']['children'])) {
        $prefix .= '-';
        loopChildren($child['path']['children'], $prefix); /* sub-children loop*/
    }
}

echo "</pre>";

Answer 2

感谢您的提示。它引导我找到一个对我有用的答案。我最终使用了两个功能。错误是“索引越界”......这是我现在所做的...调用mysql表：

SystemError

深度关联数组到相邻的mysql表

2 个答案: