使用 php 用另一个嵌套 Json 更新嵌套 Json

Question

我是 PHP 的新手，对 PHP arrays 的经验很少。 我有嵌套的 JSON 数据，我想用字段 id 的新数据更新一些数据。 我正在尝试使用字段创建动态部分。 有一个section id和field id，新数据会通过section和field id检查旧的JSON数据然后更新。 下面是我的完整代码。 或者还有其他更好的更新方式吗？

$old_data= '
{
    "section_1":
    [
        {
            "text":{"class":"mb-20","name":"text","id":"field-id-11","value":"value 01","placeholder":"Section placeholder"}
        },
        {
            "textarea":{"class":"mb-20","name":"section_content","id":"field-id-12","value":"Section content 1","placeholder":"Section Content"}
        }
    ],
    "section_2":
    [
        {
            "text":{"class":"mb-20","name":"text","id":"field-id-1","value":"value amir 1","placeholder":"Section placeholder"}
        },
        {
            "textarea":{"class":"mb-20","name":"section_content","id":"field-id-2","value":"Section content 1","placeholder":"Section Content"}
        }
    ]
}';

下面是我来自一个部分的新数据。

$new_data= 
'{
    "section_1":
    [
        {"type":"text","id":"field-id-11","value":"Foot Ball"},
        {"type":"textarea","id":"field-id-12","value":"Awesome game!"}
    ],
    "section_2":
    [
        {"type":"text","id":"field-id-1","value":"New Data"},
        {"type":"textarea","id":"field-id-2","value":"Hello"}
    ]
}';

在这里，我正在使用 static 新数据测试旧数据，它工作正常。 但我很困惑如何在下面的 foreach 循环中处理新数据？

$sections = json_decode($old_data, true);
foreach ($sections as $section_id => &$section_fields)
{
    if($section_id == 'section_2')
    {
        foreach ($section_fields as &$section_fields_array)
        {
            foreach ($section_fields_array as $section_field_name => &$section_field_data)
            {
                if($section_field_name == 'text' && $section_field_data['id'] == '3454gfdgdgtd')
                {
                    $section_fields_array[$section_field_name]['value'] = "Foot Ball 2";
                }
            }
        }
    }
}
``

Answer 1

至少有了一个新的想法，我只是修复了代码。 通过字段 id 检查然后更新它。

$new_sections = json_decode($new_data, true);
$sections = json_decode($old_data, true);
foreach ($new_sections as $new_section_id => &$new_section_fields)
{
    foreach ($new_section_fields as $index => &$new_section_fields_data)
    {
        if($new_section_fields_data['id'] == $sections[$new_section_id][$index][$new_section_fields_data['type']]['id'])
        {
            $sections[$new_section_id][$index][$new_section_fields_data['type']]['value'] = $new_section_fields_data['value'];
        }
    }
}