检查两个PHP日期时间对象是否设置为相同的日期（忽略时间） [英] Check if two PHP datetime objects are set to the same date ( ignoring time )

问题描述

我只想比较2个datetime对象，看看它们是否设置在同一个日期，但是我并不在意对象的时间分量。目前我正在使用date_format命令来提取字符串Ym-d进行比较，但这似乎很尴尬。

I just want to compare 2 datetime objects to see if they are set to the same date, but I don't care about the time component of the the object. At the moment I am using the date_format command to extract strings like 'Y-m-d' to compare but this seems awkward.

$firstDate = date_format($firstDateTimeObj, 'Y-m-d');
$secondDate = date_format($secondDateTimeObj, 'Y-m-d');

if !($firstDate == $secondDate) {

// some code
}

我是新手编程和PHP，所以任何指针都赞赏。

I'm new to programming and PHP so any pointers appreciated.

推荐答案

使用对象语法！

$firstDate = $firstDateTimeObj->format('Y-m-d');
$secondDate = $secondDateTimeObj->format('Y-m-d');

你与你的if表达式非常接近，但是！操作符必须在括号内。

You were very close with your if expression, but the ! operator must be within the parenthesis.

if (!($firstDate == $secondDate))

这也可以表示为

if ($firstDate != $secondDate)

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