如何比较两个碳时间戳?

问题描述

我有两个时间戳，我创建的edited_at 和created_at(Laravel 的)...在数据库中，两者都有类型时间戳和默认值 0000-00-00 00:00:00 ... 但是

I have two timestamps, edited_at which I created and created_at (Laravel's)...In database, both have type timestamp and default value 0000-00-00 00:00:00... But

var_dump(edited_at variable) 给出字符串.而 var_dump(created_at variable) 是对象/碳.这些时间戳有什么问题?

var_dump(edited_at variable) is giving string. While var_dump(created_at variable) is object/Carbon. What is wrong with these timestamps?

在使用 format('U') 转换为整数后，我必须比较两者.我只能在 Carbon Object 上调用这个方法.我该怎么做?

I have to compare both after converting into integer using format('U'). I can only call this method on Carbon Object. How can I do that?

推荐答案

首先，Eloquent 自动将其时间戳 (created_at, updated_at) 转换为碳对象.您可以只使用 updated_at 来获得这个不错的功能，或者在您的模型中的 $dates 属性中指定 edited_at:

First, Eloquent automatically converts it's timestamps (created_at, updated_at) into carbon objects. You could just use updated_at to get that nice feature, or specify edited_at in your model in the $dates property:

protected $dates = ['edited_at'];

现在回到你的实际问题.Carbon 有一堆比较函数:

---

Now back to your actual question. Carbon has a bunch of comparison functions:

• eq() 等于
• ne() 不等于
• gt() 大于
• gte() 大于等于
• lt() 小于
• lte() 小于等于

• eq() equals
• ne() not equals
• gt() greater than
• gte() greater than or equals
• lt() less than
• lte() less than or equals

用法:

if($model->edited_at->gt($model->created_at)){
    // edited at is newer than created at
}

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