Summary of issues related to PHP time calculation_php skills

the examples in this article summarize issues related to php time calculation. share it with everyone for your reference, the details are as follows:

1. get the date three months ago with php

2. 30 days after the calculation date

you can use strtotime. php provides a super simple way to complete work that would otherwise require dozens of lines of code.

first convert a date into a unix timestamp

3. convert the timestamps of 2 dates...and then subtract them

4. determine whether it is this week

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i hope this article will be helpful to everyone in php programming.