how do I subtract 24 hour from date time object in PHP

Question

I have the following code:

  $now = date(\"Y-m-d H:m:s\");
  $date = date(\"Y-m-d H:m:s\", strtotime(\'-24 hours\', $now));

However, now it

Answer 1

You can simply use time() to get the current timestamp.

$date = date("Y-m-d H:m:s", strtotime('-24 hours', time()));

Answer 2

This may be helpful for you:

//calculate like this
$date = date("Y-m-d H:m:s", (time()-(60*60*24)));

//check the date
echo $date;

Answer 3

$now = date("Y-m-d H:i:s");
$date = date("Y-m-d H:i:s", strtotime('-24 hours', strtotime($now)));

Add "strtotime" before $now, and Y-m-d H:m:s replace with Y-m-d H:i:s

Answer 4

this should work, too

$date = date("Y-m-d H:m:s", strtotime('-24 hours'));

Answer 5

you can do this in many ways...

echo date('Y-m-d H:i:s',strtotime('-24 hours')); // "i" for minutes with leading zeros

OR

echo date('Y-m-d H:i:s',strtotime('last day')); // 24 hours (1 day)

Output

2013-07-17 10:07:29

Answer 6

Simplest way to sub or add time,

<?php
**#Subtract 24 hours**
$dtSub = new DateTime('- 24 hours');
var_dump($dtSub->format('Y-m-d H:m:s'));
**#Add 24 hours**
$dtAdd = new DateTime('24 hours');
var_dump($dtAdd->format('Y-m-d H:m:s'));die;
?>