Question

我正在尝试将数据插入到json中的数据库中，其中多个select具有多个选项标签和值。我只想插入这样的数据库： -

First select dropdown:-

 {"select":[{"placeholder":"test","options":
 [{"label":"option-label-1","value":"option-value-1"},
  {"label":"option-label-2","value":"option-value-2"},
  {"label":"option-label-3","value":"option-value-3"},
  {"label":"option-label-4","value":"option-value-4"}],
 "type":"select","name":"test","label":"test"},

Second select dropdown:-

{"placeholder":"test2","options":
[{"label":"option-label-1","value":"option-value-1"},
 {"label":"option-label-2","value":"option-value-2"},
 {"label":"option-label-3","value":"option-value-3"},
 {"label":"option-label-4","value":"option-value-4"}],
 "type":"select","name":"test2","label":"test2"}]}

但是我的代码在插入时显示错误

 Parse error: syntax error, unexpected 'foreach' (T_FOREACH), expecting ']'

获取结果的代码是

publicfunction dropDownField($request)
{
    $value = [];
    if (key_exists("drop-name", $request)) {
        foreach ($request['drop-name'] as $key => $data) {
            $value[] = [
                "type"        => ($request['drop-type'][$key]) ? (($request['drop-type'][$key])) : null,
                "label"       => ($request['drop-label'][$key]) ? ($request['drop-label'][$key]) : null,
                "name"        => ($request['drop-name'][$key]) ? ($request['drop-name'][$key]) : null,
                "placeholder" => ($request['drop-placeholder'][$key]) ? ($request['drop-placeholder'][$key]) : null,
                  foreach ($request['drop-option-label'] as $index => $data) {
                      "options"     => [
                          'label' => ($request['drop-option-label'][$key][$index]) ? ($request['drop-option-label'][$key][$index]) : null,
                          'value' => ($request['drop-option-value'][$key][$index]) ? ($request['drop-option-value'][$key][$index]) : null,
                      ]
                    }
            ];
        }
    }

    return $value;
}

Answer 1

您需要在循环中创建另一个数组，然后根据需要将其添加到原始数组中：

publicfunction dropDownField($request)
{
    $value = [];
    if (key_exists("drop-name", $request)) {
        foreach ($request['drop-name'] as $key => $data) {

            // new "options" array
            $options = [];
            foreach($request['drop-option-label'] as $index => $data) {
                $options[] = [
                    'label' => $data ?: null,
                    'value' => !empty($request['drop-option-value'][$index]) ? $request['drop-option-value'][$index] : null,
                ];
            }

            // original "return" array
            $value[] = [
                "type"        => !empty($request['drop-type'][$key]) ? $request['drop-type'][$key] : null,
                "label"       => !empty($request['drop-label'][$key]) ? $request['drop-label'][$key] : null,
                "name"        => !empty($request['drop-name'][$key]) ? $request['drop-name'][$key] : null,
                "placeholder" => !empty($request['drop-placeholder'][$key]) ? $request['drop-placeholder'][$key] : null,
                "options"     => $options // <-- new "options" array added here
            ];
        }
    }

    return $value;
}

Answer 2

试试这段代码：

public function dropDownField($request)
{
    $value = [];
    if (key_exists("drop-name", $request)) {
        foreach ($request['drop-name'] as $key => $data) {
            $options = [];
            foreach($request['drop-option-label'] as $key => $data) {
                $options[] = [
                    'label' => ($request['drop-option-label'][$key]) ?($request['drop-option-label'][$key]) : null,
                    'value' => ($request['drop-option-value'][$key]) ? ($request['drop-option-value'][$key]) : null,
                ];
            }

           $value[] = [
                "type"        => ($request['drop-type'][$key]) ? (($request['drop-type'][$key])) : null,
                "label"       => ($request['drop-label'][$key]) ? ($request['drop-label'][$key]) : null,
                "name"        => ($request['drop-name'][$key]) ? ($request['drop-name'][$key]) : null,
                "placeholder" => ($request['drop-placeholder'][$key]) ? ($request['drop-placeholder'][$key]) : null,
                "options" => $options
            ];
        }
    }
    return $value;
}

Answer 3

它可以是这样的：

public function dropDownField($request)
{
    $value = [];

    if (key_exists("drop-name", $request)) {
        foreach ($request['drop-name'] as $key => $data) {

        /* Defined $var here for option */
         foreach ($request['drop-option-label'] as $index => $data) {
            $var = [
              'label' => !empty($request['drop-option-label'][$index]) ? $request['drop-option-label'][$index] : null,
              'value' => !empty($request['drop-option-value'][$index]) ? $request['drop-option-value'][$index] : null,
                ];
        }


    $value[] = [
                "type"        => !empty($request['drop-type'][$key]) ? $request['drop-type'][$key] : null,
                "label"       => !empty($request['drop-label'][$key]) ? $request['drop-label'][$key] : null,
                "name"        => !empty($request['drop-name'][$key]) ? $request['drop-name'][$key] : null,
                "placeholder" => !empty($request['drop-placeholder'][$key]) ? $request['drop-placeholder'][$key] : null,
                "options"     => $var; //Defined outside foreach loop
            ];
        }
    }

    return $value;
}

如何在foreach数组中使用foreach？

3 个答案: