如何将碳转换为字符串，只取日期？

Question

我有一个这样的collection

0 => array:4 [
  "so" => "SO-1"
  "product_name" => "EXTREME FORTE - BP"
  "created_at" => Carbon @1527481346 {#628
    date: 2018-05-28 04:22:26.0 UTC (+00:00)
  }
  "id" => "5b0b84027475aa1508002623"
]

如何只取“2018-05-28”？有人可以帮我解决这个问题吗？无论如何谢谢

Answer 1

$collection_item->created_at->format('Y-m-d');

Answer 2

我更喜欢这个

$model_item->created_at->toDateString();

因为位于模态 protected $dates array 中的所有日期字段都是 \Carbon\Carbon 类型。

所以上面的代码可以应用于任何日期字段，只要你在模态的 $dates array 中将它声明为日期如下

// this includes created_at and updated_at by default so no need to add it 
protected $dates = ['approved', 'seen_at'];

Answer 3

也可以为您的模型添加自动转换，例如：

protected $casts = [
    'created_at' => 'date:Y-m-d',
    'updated_at' => 'datetime:Y-m-d H:00',
];

备注：您的里程数可能会因您的 Laravel 版本

而异

https://laravel.com/docs/8.x/eloquent-mutators#date-casting

https://laravel.com/docs/8.x/eloquent-serialization#date-serialization

Answer 4

 $carbon = Carbon::parse();

 echo (string)$carbon;
 // 2022-04-13 00:00:00

 $carbon->settings(['toStringFormat' => 'Y-m-d']);

 echo (string)$carbon;
 // 2022-04-13

如何将碳转换为字符串，只取日期？

How to convert a carbon into string, to take the date only?

php

collections

laravel

php-carbon