转换 Laravel 集合
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时间：2020-09-14 16:44:23 来源:igfitidea点击:
Transform laravel collection
提问by jsd
I need a certain array format like this:
我需要这样的某种数组格式：
$data = [
1 => ['order' => 3],
2 => ['order' => 2],
3 => ['order' => 1]
];
So when I do:
所以当我这样做时：
$ids = $items->transform(function ($item) {
return [$item->id => ['order' => rand(1,10)]];
})->all();
Gives:
给出：
array:3 [
0 => array:1 [
1 => array:1 [
"order" => 8
]
]
1 => array:1 [
2 => array:1 [
"order" => 3
]
]
2 => array:1 [
3 => array:1 [
"order" => 10
]
]
]
How can I transform the array in a specific way I need above? TIA
如何以上面需要的特定方式转换数组？TIA
回答by Hanlin Wang
you can use mapWithKeys, docs is here: https://laravel.com/docs/5.5/collections#method-mapwithkeys
您可以使用 mapWithKeys，文档在这里：https://laravel.com/docs/5.5/collections#method-mapwithkeys
$keyed = $items->mapWithKeys(function ($item) {
return [$item->id => ['order' => rand(1,10)]];
});
$ids = $keyed->all();
