(PHP)特定的数组排序
我希望任何人都可以帮我解决一个小问题。得到一个清晰的头脑后,我仍然坚持,并找不到解决方案。我想这显然很简单。(PHP)特定的数组排序
我坚持一个数组结构,并需要对它们进行排序。下面是该阵列的一个小例子:
$brand["BRAND_1"]["name"] = 'Brand Name 1';
$brand["BRAND_1"]["list"]['SUB_BRAND_1']['name'] = 'Headline Subbrand 1';
$brand["BRAND_1"]["list"]['SUB_BRAND_1']['text'] = 'text for Subbrand 1';
$brand["BRAND_1"]["list"]['SUB_BRAND_2']['name'] = 'Headline Subbrand 2';
$brand["BRAND_1"]["list"]['SUB_BRAND_2']['text'] = 'text for Subbrand 2';
$brand["BRAND_2"]["name"] = 'Brand Name 2';
$brand["BRAND_2"]["list"]['SUB_BRAND_1']['name'] = 'Headline Subbrand 1';
$brand["BRAND_2"]["list"]['SUB_BRAND_1']['text'] = 'text for Subbrand 1';
可能有BRAND_N正量和n SUB_BRAND_N量。
我有一个订单ID,其stucks一个灵活的订单:
0 = out as in (dont worry about this, catch it at an earlier stage)
1 = BRAND_1.SUB_BRAND_1
2 = BRAND_1.SUB_BRAND_2
3 = BRAND_2.SUB_BRAND_1
此被延长,如果有更多的这四种情况以及本身可能更改顺序。所以我必须使用这些ID。
顺序应改变阵列中的位置和ID的值推到顶部阵列中,例如:
订单ID = 2:
$brand["BRAND_1"]["name"] = 'Brand Name 1';
$brand["BRAND_1"]["list"]['SUB_BRAND_2']['name'] = 'Headline Subbrand 2';
$brand["BRAND_1"]["list"]['SUB_BRAND_2']['text'] = 'text for Subbrand 2';
$brand["BRAND_1"]["list"]['SUB_BRAND_1']['name'] = 'Headline Subbrand 1';
$brand["BRAND_1"]["list"]['SUB_BRAND_1']['text'] = 'text for Subbrand 1';
$brand["BRAND_2"]["name"] = 'Brand Name 2';
$brand["BRAND_2"]["list"]['SUB_BRAND_1']['name'] = 'Headline Subbrand 1';
$brand["BRAND_2"]["list"]['SUB_BRAND_1']['text'] = 'text for Subbrand 1';
顺序ID = 3:
$brand["BRAND_2"]["name"] = 'Brand Name 2';
$brand["BRAND_2"]["list"]['SUB_BRAND_1']['name'] = 'Headline Subbrand 1';
$brand["BRAND_2"]["list"]['SUB_BRAND_1']['text'] = 'text for Subbrand 1';
$brand["BRAND_1"]["name"] = 'Brand Name 1';
$brand["BRAND_1"]["list"]['SUB_BRAND_1']['name'] = 'Headline Subbrand 1';
$brand["BRAND_1"]["list"]['SUB_BRAND_1']['text'] = 'text for Subbrand 1';
$brand["BRAND_1"]["list"]['SUB_BRAND_2']['name'] = 'Headline Subbrand 2';
$brand["BRAND_1"]["list"]['SUB_BRAND_2']['text'] = 'text for Subbrand 2';
我至今尝试过这样的:
<?php
$order[1] = 'BRAND_1::SUB_BRAND_1';
$order[2] = 'BRAND_1::SUB_BRAND_2';
$order[3] = 'BRAND_2::SUB_BRAND_1';
// for testing
$orderId = 2;
// get the brand and sub_brand
$part = explode("::", $order[$orderId]);
// set the new brand list
$newBrand[$part[0]]['name'] = $brand[$part[0]]['name'];
$newBrand[$part[0]]['list'][$part[1]] = $brand[$part[0]]['list'][$part[1]];
// unset the brand which should be first of the main brand array
unset($brand[$part[0]]['list'][$part[1]]);
// if there was only one list unset the whole brand part
if(count($brand[$part[0]]['list']) < 1) {
unset($brand[$part[0]]);
}
现在我有两个数组:
$品牌包括整个品牌,除了这一个应该是第一
$ newBrand只包括该品牌这应该是在顶部
现在我只需要添加$品牌$ newBrand但有我的问题:) 尝试了很多不同的方式重建数组推动内容,替换或合并... b我总是用圈子跑。
任何其他的想法,更短的代码,更好的方法..?
我写的整个代码为codepad.org更好的测试: Codepad example
赞赏任何帮助或建议。
干杯!
编辑:
很抱歉的误解:
顺序是代码以外的规范。目标是根据orderId将一个元素设置为$ brand数组中的顶部。 $ orderId将通过POST,GET或类调用传递。
$ order数组只是一个数组,它可以帮助我在代码中访问规范。
所以$ orderId匹配$ order数组的一个元素,并返回这个元素,它应该位于$ brand数组的顶部。由于没有数字键,我决定使用“brand :: sub_brand”语法来访问这两个深度级别。
希望这解释它更好地litte。
感谢
这里是一个可能的解决方案(测试here):
<?php
function getOrderingRules()
{
return array(
1 => 'BRAND_1.SUB_BRAND_1',
2 => 'BRAND_1.SUB_BRAND_2',
3 => 'BRAND_2.SUB_BRAND_1',
);
}
function getOrderedBrands($brands, $orderId)
{
$rules = getOrderingRules();
if (!isset($rules[$orderId])) {
throw new RuntimeException("Rule for order id '$orderId' is not specified");
}
$result = array();
// Push the first element
list($key, $subkey) = explode('.', $rules[$orderId]);
$result[$key] = array(
'name' => $brands[$key]['name'],
'list' => array(
$subkey => $brands[$key]['list'][$subkey],
),
);
// Push remaining elements in the order they appear in $rules
foreach ($rules as $oid => $rule) {
// Skip order id of the first element
if ($oid == $orderId) {
continue;
}
list($key, $subkey) = explode('.', $rules[$oid]);
if (!isset($result[$key])) {
$result[$key] = array(
'name' => $brands[$key]['name'],
'list' => array(),
);
}
$result[$key]['list'][$subkey] = $brands[$key]['list'][$subkey];
}
return $result;
}
// Loading all brands (could be external source, like database)
$brand["BRAND_1"]["name"] = 'Brand Name 1';
$brand["BRAND_1"]["list"]['SUB_BRAND_1']['name'] = 'Headline Subbrand 1';
$brand["BRAND_1"]["list"]['SUB_BRAND_1']['text'] = 'text for Subbrand 1';
$brand["BRAND_1"]["list"]['SUB_BRAND_2']['name'] = 'Headline Subbrand 2';
$brand["BRAND_1"]["list"]['SUB_BRAND_2']['text'] = 'text for Subbrand 2';
$brand["BRAND_2"]["name"] = 'Brand Name 2';
$brand["BRAND_2"]["list"]['SUB_BRAND_1']['name'] = 'Headline Subbrand 1';
$brand["BRAND_2"]["list"]['SUB_BRAND_1']['text'] = 'text for Subbrand 1';
// Sort and output
print_r(getOrderedBrands($brand, 1));
print_r(getOrderedBrands($brand, 2));
print_r(getOrderedBrands($brand, 3));
你应该知道,这种阵列结构($brands
),您将无法设置排序规则一样这样的:
1 = BRAND_1.SUB_BRAND_1
2 = BRAND_2.SUB_BRAND_1
3 = BRAND_1.SUB_BRAND_2
,因为一旦你遇见元素通过BRAND_1
键,您必须遍历所有的它的子品牌。如果你没有这样的规则,一切都很好。否则,你必须存储有序阵列结构是这样的(因为实际上要排序的子品牌,而不是品牌):
$subBrands = array(
array(
'name' => 'Headline Subbrand 1',
'text' => 'Text for it',
'parent' => 'BRAND_1',
'key' => 'SUB_BRAND_1',
),
array(
'name' => 'Headline Subbrand 2',
'text' => 'Text for it',
'parent' => 'BRAND_1',
'key' => 'SUB_BRAND_2',
),
);
$parentBrands = array(
'BRAND_1' => 'Brand Name 1',
'BRAND_2' => 'Brand Name 2',
);
然后你就可以排序$subBrands
和遍历它
这真棒。这不会是一个混合子品牌的规则。所以你的解决方案完美。我也想出了我的失败之处。多谢,伙计! – Talisin
订单ID只确定第一要素,其他元素将按照'order IDs'数组中的顺序排列,对吧? – galymzhan
你能澄清一下:你必须从一开始就使用数组结构?你是说这种情况可以改变吗?如果是这样,你在哪里得到你的排序说明? – Shad
*更新,并希望这回答您的问题 – Talisin