将PHP数组转换为HTML表单输入是复制项目 [英] Converting a PHP array into HTML form inputs is duplicating items

问题描述

我正在尝试使用数组值并从这些值中构建一个php表单。

数组处于最底层以保持问题清晰。数组结构是：

   - 项目
  - 项目
  - 项目包含子
  - 项目
  - 项目
  - 包含子项目的项目
  - 项目
  - 项目
  

这是我想要输出每个项目 但是的项目，如果项目有一个子项目，只需输出父项目的名称并为孩子创建字段。

I创建了这个：

 函数renderTest2（array $ data）
 {
 $ html ='< ul> ;'; 
 foreach（$ data as $ item）{
 $ html。='< li>'; 
 
 foreach（$ item as $ key => $ value）{
 
 if（is_array（$ value））{
 $ html。= renderTest2（$值）; 
} else {
 if（array_key_exists（'children'，$ item））{
 $ html。= $ item ['name']; 
} else {
 $ html。= $ item ['name']。 < input type = \text \value = \\>< br />; 
} 
 
} 
} 
 $ html。='< / li>'; 
} 
 $ html。='< / ul>'; 
 
返回$ html; 
} 
  

这给了我这个输出：

但我不明白它为什么重复项目。这是我使用的测试数组：

 <$ c 
 $ c> $ aFullArray = array（）; 
 
 $ aFullArray [] = array（name=>Adam，address=>123 main，phone=>000-000-0000） ; 
 $ aFullArray [] = array（name=>Beth，address=>123 main，phone=>000-000-0000）; 
 
 
 $ aChildren = array（）; 
 $ aChildren [] = array（name=>Mike，address=>123 main，phone=>000-000-0000）; 
 $ aChildren [] = array（name=>Nancy，address=>123 main，phone=>000-000-0000）; 
 
 
 $ subChild = array（）; 
 $ subChild [] = array（name=>Peter，address=>123 main，phone=>000-000-0000）; 
 $ subChild [] = array（name=>Paul，address=>123 main，phone=>000-000-0000）; 
 
 $ aChildren [] = array（name=>Oscar，address=>123 main，phone=>000-000-0000， 
children=> $ subChild）; 
 $ b $ aFullArray [] = array（name=>Charlie，address=>123 main，phone=>000-000-0000， 
children=> $ aChildren）; 
 
 $ aFullArray [] = array（name=>Danny，address=>123 main，phone=>000-000-0000） ; 
  

解决方案

  function renderTest2 （array $ data）
 {
 $ html ='< ul>'; 
 foreach（$ data as $ item）{
 $ html。='< li>'; 
 if（array_key_exists（'children'，$ item））{
 $ html。= $ item ['name']; 
 $ html。= renderTest2（$ item ['children']）; 
} else {
 $ html。= $ item ['name']。 < input type ='text'value =''>< br />; 
} 
 $ html。='< / li>'; 
} 
 $ html。='< / ul>'; 
 
返回$ html; 
} 
  

你循环两次，这是不需要的，如果它有孩子传递孩子仅限数组

解释：

1. 循环一个数组，如果它有 children key do recursion


2. 如果找不到生成li元素

I am attempting to take an array of values and build a php form from those values.

The array is at the bottom to keep the question clear. The array structure is:

- Item
- Item
- Item with Child   
        -Item 
        -Item
        - Item with Child   
            -Item 
            -Item

Here is what I want to output each item but if the item has a child, just output the name of the parent and create fields for the children.

I created this:

 function renderTest2(array $data)
    {
        $html = '<ul>';
        foreach ($data as $item) {
            $html .= '<li>';

            foreach ($item as $key => $value) {

                if (is_array($value)) {
                    $html .= renderTest2($value);
                } else {
                    if (array_key_exists('children', $item)) {
                        $html .= $item['name'];
                    } else {
                        $html .= $item['name'] . "<input type=\"text\" value=\"\"> <br/>";
                    }

                }
            }
            $html .= '</li>';
        }
        $html .= '</ul>';

        return $html;
    }

Which gave me this output:

But I don't understand why it is duplicating items. What am I doing wrong?

Here is the test array I used:

$aFullArray = array();

$aFullArray[] = array("name" => "Adam", "address" => "123 main", "phone" => "000-000-0000");
$aFullArray[] = array("name" => "Beth", "address" => "123 main", "phone" => "000-000-0000");


    $aChildren = array();
    $aChildren [] = array("name" => "Mike", "address" => "123 main", "phone" => "000-000-0000");
    $aChildren[] = array("name" => "Nancy", "address" => "123 main", "phone" => "000-000-0000");


    $subChild = array();
    $subChild [] = array("name" => "Peter", "address" => "123 main", "phone" => "000-000-0000");
    $subChild [] = array("name" => "Paul", "address" => "123 main", "phone" => "000-000-0000");

    $aChildren [] = array("name"     => "Oscar", "address" => "123 main", "phone" => "000-000-0000",
                          "children" => $subChild);

    $aFullArray[] = array("name"     => "Charlie", "address" => "123 main", "phone" => "000-000-0000",
                          "children" => $aChildren);

    $aFullArray[] = array("name" => "Danny", "address" => "123 main", "phone" => "000-000-0000");

解决方案

function renderTest2(array $data)
{
    $html = '<ul>';
    foreach ($data as $item) {
        $html .= '<li>';
        if (array_key_exists('children', $item)) {
            $html .= $item['name'];
            $html .= renderTest2($item['children']);
        } else {
            $html .= $item['name'] . "<input type='text' value=''> <br/>";
        }
        $html .= '</li>';
    }
    $html .= '</ul>';

    return $html;
}

you are looping two times which is not required and if it has children pass children array only

Explanation:

1. Loop through an array and if it has children key do recursion
2. If not found generate li element

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