如何为不同的键存储多个数据

Question

我有与每个不同键相关联的大量数据。我计划在php

中以这种格式存储数据

$item = array(
(
        "key" : key-value;
        "features" : array-of-features;
        "small_images" : array-of-small_images;
    ),
    (
        "key" : key-value;
        "features" : array-of-features;
        "small_images" : array-of-small_images;
    ),
    (
        "key" : key-value;
        "features" : array-of-features;
        "small_images" : array-of-small_images;
    )
);

是否知道我如何创建像上面提到的数据结构以及如何在PHP中访问其值。如果有其他的方法，请告诉我。

EDIT:注意这里的数据是array的array-of-features和array-of-small_images是一个关联数组，其中包含与主主相同的键和与其值相同的值

Answer 1

如果键唯一，则关联数组是理想的解决方案:

$items['key1']['features'] = array-of-features;
$items['key1']['small_images'] = array-of-small_images;
$items['key2']['features'] = array-of-features;
$items['key2']['small_images'] = array-of-small_images;
...

然后，可以用foreach:

循环项

foreach($items as $key => $item) {
  echo "n<pre>$key => " . print_r($item, 1) . "</pre>";
}