我在使用JSON打印类别树的功能时遇到了一些问题。
这些是我的表格:
tb_category
ID_CATEG CATEGORY
1 Category 1
2 Category 2
3 Category 3
tb_subcategory
ID_SUBCATEG SUBCATEGORY ID_CATEG
1 Subcategory 1 1
2 Subcategory 2 2
3 Subcategory 3 2
4 Subcategory 4 2
5 Subcategory 5 3
6 Subcategory 6 3
如何使用 PHP 打印JSON,如下所示:
{
[
"category": "Category 1",
"subcategories": {
"Subcategory 1"
}
],
[
"category": "Category 2",
"subcategories": {
"Subcategory 2",
"Subcategory 3",
"Subcategory 4"
}
],
[
"category": "Category 3",
"subcategories": {
"Subcategory 5",
"Subcategory 6"
}
],
}
或类似的东西。