在每个数组项上添加键/值- PHP
在每个数组项上添加键/值- PHP
提问于 2019-07-18 15:40:11
我试图通过为数组中的每个项添加一个额外的键/值来做一件简单的事情。我对此有困难，因为额外的键/值是在底部而不是在每个数组(键)中添加的。
这是我的数组：
[
[{
"id": 11,
"product_id": 3,
"sku": 30000011,
"name": "BCAA 2:1:1 400g Fruit Punch",
"slug": "bcaa-211-400g-fruit-punch",
"files_id": 1397,
"image_name": "bcaa-211-400g-proteinfabrikken-1.jpg",
"image_uuid": "494bacb0-13ae-11e7-b439-adf9395810da",
"image_size": 295472,
"image_type": "image\/jpeg",
"image_url": "https:\/\/d2m146bkiftioz.cloudfront.net\/7-494bacb0-13ae-11e7-b439-adf9395810da\/bcaa-211-400g-proteinfabrikken-1.jpg"
}, {
"id": 13,
"product_id": 3,
"sku": 30000013,
"name": "BCAA 2:1:1 400g Lemon-Lime",
"slug": "bcaa-211-400g-lemon-lime",
"files_id": 1399,
"image_name": "bcaa-211-400g-proteinfabrikken-3.jpg",
"image_uuid": "496a1420-13ae-11e7-ba90-ddc728050acd",
"image_size": 294101,
"image_type": "image\/jpeg",
"image_url": "https:\/\/d2m146bkiftioz.cloudfront.net\/7-496a1420-13ae-11e7-ba90-ddc728050acd\/bcaa-211-400g-proteinfabrikken-3.jpg"
}]
]我需要的是为每个产品添加一个增量号(image_number)，如下所示：
$i = 0;
foreach($product_variants as $key => $value){
foreach($value as $keys => $values){
$product_variants[$key]['image_number'] = $i++;
}
}，但最终的结果是：
[{
"0": {
"id": 11,
"product_id": 3,
"sku": 30000011,
"name": "BCAA 2:1:1 400g Fruit Punch",
"slug": "bcaa-211-400g-fruit-punch",
"files_id": 1397,
"image_name": "bcaa-211-400g-proteinfabrikken-1.jpg",
"image_uuid": "494bacb0-13ae-11e7-b439-adf9395810da",
"image_size": 295472,
"image_type": "image\/jpeg",
"image_url": "https:\/\/d2m146bkiftioz.cloudfront.net\/7-494bacb0-13ae-11e7-b439-adf9395810da\/bcaa-211-400g-proteinfabrikken-1.jpg"
},
"1": {
"id": 13,
"product_id": 3,
"sku": 30000013,
"name": "BCAA 2:1:1 400g Lemon-Lime",
"slug": "bcaa-211-400g-lemon-lime",
"files_id": 1399,
"image_name": "bcaa-211-400g-proteinfabrikken-3.jpg",
"image_uuid": "496a1420-13ae-11e7-ba90-ddc728050acd",
"image_size": 294101,
"image_type": "image\/jpeg",
"image_url": "https:\/\/d2m146bkiftioz.cloudfront.net\/7-496a1420-13ae-11e7-ba90-ddc728050acd\/bcaa-211-400g-proteinfabrikken-3.jpg"
},
"image_number": 1
}]我需要/想要的是这样的结果：
[
[{
"id": 11,
"product_id": 3,
"sku": 30000011,
"name": "BCAA 2:1:1 400g Fruit Punch",
"slug": "bcaa-211-400g-fruit-punch",
"files_id": 1397,
"image_name": "bcaa-211-400g-proteinfabrikken-1.jpg",
"image_uuid": "494bacb0-13ae-11e7-b439-adf9395810da",
"image_size": 295472,
"image_type": "image\/jpeg",
"image_url": "https:\/\/d2m146bkiftioz.cloudfront.net\/7-494bacb0-13ae-11e7-b439-adf9395810da\/bcaa-211-400g-proteinfabrikken-1.jpg"
"image_number": 0 <--- This
}, {
"id": 13,
"product_id": 3,
"sku": 30000013,
"name": "BCAA 2:1:1 400g Lemon-Lime",
"slug": "bcaa-211-400g-lemon-lime",
"files_id": 1399,
"image_name": "bcaa-211-400g-proteinfabrikken-3.jpg",
"image_uuid": "496a1420-13ae-11e7-ba90-ddc728050acd",
"image_size": 294101,
"image_type": "image\/jpeg",
"image_url": "https:\/\/d2m146bkiftioz.cloudfront.net\/7-496a1420-13ae-11e7-ba90-ddc728050acd\/bcaa-211-400g-proteinfabrikken-3.jpg"
"image_number": 1 <--- This
}]
]回答 3
Stack Overflow用户
回答已采纳
发布于 2019-07-18 15:46:06
有一些方法可以使用键修改数组，但我将使用引用&对foreach中的公开值进行修改。
$i = 0;
foreach($product_variants as &$value){
foreach($value as &$values){
$values['image_number'] = $i++;
}
}Stack Overflow用户
发布于 2019-07-18 15:57:44
您不需要2个foreach()循环，只要有一个foreach()，就可以轻松地追加image_number。
$array =json_decode($json,1)[0];
foreach($array as $key=>$value){
$array[$key]['image_number'] = $key;
}
print_r($array);工作演示： https://3v4l.org/T30B1
Stack Overflow用户
发布于 2019-07-18 15:42:18
尝试：
$product_variants[$key][$keys]['image_number'] = $i++;您有一个如下所示的数组：
array(
0 => [
0 => {
"id": 11
},
1 => {
"id": 13
}
]
]本质上，上面是你的多维数组的设置，我已经包括了键，这样你就可以更清楚地看到它。
foreach($product_variants as $key => $value) {
// On the first iteration, $key is equal to 0, and $value is the next array.
foreach($value as $keys => $values) {
// On the first iteration, $keys is equal to 0, and $values is the data in the array.
$product_variants[$key]['image_number'] = $i++;
}
}因此，为了访问实际数据，我们需要执行以下操作：
$product_variants[0][0]['data'] = 'value;你试图将信息设置为：
$product_variants[0]['data'] = 'value;这就是为什么它是在根数组中设置的，而不是数组中的数组。
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/57098208
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