我正在尝试过滤多维数组并返回为给定类别找到的条目数。
编辑
我正在尝试避免使用foreach。目前正在考虑使用array_intersect，但遇到数组到字符串的转换错误。我正在这样做：
//filter array with category name
$category_array = array('T-Shirt','Men');
$filter_category = (array_intersect($products['result'], $category_array));
var_export($filter_category);//return data of filtered entries
echo $row_count=count($filter_category);//return number of entries
所需结果应该返回与下面完全相同的数组，但仅包含过滤后的条目。如果有更好的方法来做我想做的事情。我打开了！
这是未过滤的数据
$products={
"code": 200,
"result": [
{
"id": 121935189,
"external_id": "5d27b7962ac2c1",
"name": "RPROD7742019 Dark Green Bush Camo Men's T-Shirt ",
"variants": 6,
"synced": 6
},
{
"id": 121934788,
"external_id": "5d27b641b1f568",
"name": "RPROD2282019 FOREST GREEN CAMO Men's T-shirt",
"variants": 6,
"synced": 6
},
{
"id": 121934520,
"external_id": "5d27b555048158",
"name": "RPROD7542019 Men's Rash Guard T-Shirt Sweatshirt Long Sleeve",
"variants": 7,
"synced": 7
},
{
"id": 121934241,
"external_id": "5d27b467b817b4",
"name": "RPROD4952019 Men's T-shirt",
"variants": 6,
"synced": 6
},
{
"id": 121933767,
"external_id": "5d27b34c3133a2",
"name": "RPROD5872019 Men's T-shirt ",
"variants": 6,
"synced": 6
},
{
"id": 121933319,
"external_id": "5d27b12e253032",
"name": "RPROD7662019 DARK GREEN CAMO Men's T-Shirt - Men",
"variants": 6,
"synced": 6
},
{
"id": 121931543,
"external_id": "5d27afd7c949b8",
"name": "RPROD1192019 Jungle Camo Men's T-Shirt - Men",
"variants": 6,
"synced": 6
},
{
"id": 121930567,
"external_id": "5d27ae02dd00a8",
"name": "RPROD7572019 Camo Short sleeve men’s t-shirt - Men",
"variants": 6,
"synced": 6
},
{
"id": 121930354,
"external_id": "5d27ad2a338399",
"name": "RPROD8412019 Camo Men's T-shirt - Men",
"variants": 6,
"synced": 6
},
{
"id": 121665999,
"external_id": "5d251acde94bc7",
"name": "RPROD3042019 Champion Dad Cap Trucker Cap Men",
"variants": 2,
"synced": 2
},
{
"id": 121665890,
"external_id": "5d251a50cb6a82",
"name": "RPROD7162019 Vintage Cotton Twill Cap Trucker Cap Men Women",
"variants": 3,
"synced": 3
},
{
"id": 121665703,
"external_id": "5d2519cba9fea7",
"name": "RPROD4872019 Dad hat Trucker Cap Men Women",
"variants": 1,
"synced": 1
},
{
"id": 121665596,
"external_id": "5d251972bd8b36",
"name": "RPROD2492019 Dad hat Trucker Cap Men Women",
"variants": 1,
"synced": 1
},
{
"id": 121665533,
"external_id": "5d25193756ac83",
"name": "RPROD5362019 Trucker Cap Dad hat Men Women",
"variants": 5,
"synced": 5
},
{
"id": 121665382,
"external_id": "5d2518ae661cf3",
"name": "RPROD3082019 Cotton Cap Trucker Cap Dad Hat Men Women",
"variants": 7,
"synced": 7
},
{
"id": 121665266,
"external_id": "5d2518395f7b28",
"name": "RPROD6372019 Trucker Cap Men Women",
"variants": 1,
"synced": 1
},
{
"id": 121665141,
"external_id": "5d2517dc928059",
"name": "RPROD8112019 Trucker Cap Men Women",
"variants": 9,
"synced": 9
},
{
"id": 121664869,
"external_id": "5d25171b371fa4",
"name": "RPROD7232019 Trucker Cap Men Women",
"variants": 4,
"synced": 4
},
{
"id": 121664726,
"external_id": "5d2516c175ad54",
"name": "RPROD4112019 Trucker Cap Men Women",
"variants": 5,
"synced": 5
},
{
"id": 121664599,
"external_id": "5d251659e8a218",
"name": "RPROD7002019 Trucker Cap Men Women",
"variants": 1,
"synced": 1
},
{
"id": 121664477,
"external_id": "5d251609908887",
"name": "RPROD3232019 Trucker Cap Men Women",
"variants": 5,
"synced": 5
},
{
"id": 121664346,
"external_id": "5d2515ade45543",
"name": "RPROD6702019 Trucker Cap - Men Women",
"variants": 5,
"synced": 5
},
{
"id": 121664113,
"external_id": "5d2515167e62e4",
"name": "RPROD9422019 Cotton Cap Dad Hat Women Men",
"variants": 8,
"synced": 8
},
{
"id": 121663700,
"external_id": "5d2513fb5e6572",
"name": "RPROD2552019 Cotton Trucker Cap Dad Hat Men Women",
"variants": 4,
"synced": 4
},
{
"id": 121663350,
"external_id": "5d251304231b28",
"name": "RPROD2762019 Trucker Cap Men Women",
"variants": 9,
"synced": 9
}
],
"extra": [],
"paging": {
"total": 75,
"offset": 0,
"limit": 25
}
}
答案 0 :(得分：1)
您可以为此使用array_filter。将类别数组转换为匹配所有单词的正则表达式；参见Regular Expression to MATCH ALL words in a query, in any order。然后在过滤器功能中使用preg_match()。
$regexp = '/(?=.*\bt-shirt\b)(?=.*\bmen\b)/i';
$fl_list = array_filter(function($p) use ($regexp) {
return preg_match($regexp, $p['name']);
}, $products['result']);
我也在常规表达中使用了\b，以使其与整个单词匹配。否则，men将与women相匹配。
如果您在数据中使用真实的关键字，而不是尝试匹配产品名称中的单词，那么事情会容易得多。
答案 1 :(得分：1)
类似这样的东西：
$category_array = array('T-Shirt', 'camo');
print_r(
array_intersect_key(
$products['result'],
preg_grep(
'/(?=.*\b'.implode('\b)(?=.*\b', $category_array).'\b)/i',
array_column($products['result'], 'name')
)
)
);
输出：
Array
(
[0] => Array
(
[id] => 121935189
[external_id] => 5d27b7962ac2c1
[name] => RPROD7742019 Dark Green Bush Camo Men's T-Shirt
[variants] => 6
[synced] => 6
)
[1] => Array
(
[id] => 121934788
[external_id] => 5d27b641b1f568
[name] => RPROD2282019 FOREST GREEN CAMO Men's T-shirt
[variants] => 6
[synced] => 6
)
[5] => Array
(
[id] => 121933319
[external_id] => 5d27b12e253032
[name] => RPROD7662019 DARK GREEN CAMO Men's T-Shirt - Men
[variants] => 6
[synced] => 6
)
[6] => Array
(
[id] => 121931543
[external_id] => 5d27afd7c949b8
[name] => RPROD1192019 Jungle Camo Men's T-Shirt - Men
[variants] => 6
[synced] => 6
)
[7] => Array
(
[id] => 121930567
[external_id] => 5d27ae02dd00a8
[name] => RPROD7572019 Camo Short sleeve men’s t-shirt - Men
[variants] => 6
[synced] => 6
)
[8] => Array
(
[id] => 121930354
[external_id] => 5d27ad2a338399
[name] => RPROD8412019 Camo Men's T-shirt - Men
[variants] => 6
[synced] => 6
)
)
它们都包含“ Men”，所以我不确定过滤规则应该是什么。无论如何，经过一些调整，我改用了“ camo”。
PS，如果要更新阵列，则只需执行此操作即可代替print_r：
$products['result'] = array_intersect_key( ... other code ... );
如果您也想要我，我可以解释它的工作原理。