I have date stored in a string, go one day back

Question

I have a date stored in a variable:

$date = '2017-06-01';

And I want to go one day back. So in this case, the variable should end up being:

$date = '2017-05-31';

What's the appropriate way to go "one day back" in PHP?

Answer 1

The documentation of PHPs DateTime class gives a perfect example for what you ask. You just would have to read it...

<?php
$date = new DateTime('2017-06-01');
$date->sub(new DateInterval('P1D'));
var_dump($date->format('Y-m-d'));

The output obviously is:

string(10) "2017-05-31"

Answer 2

Here we are using DateTime and DateInterval for achieving desired output.

Try this code snippet here

<?php

ini_set('display_errors', 1);

$noOfDays=1;//no of days to subtract

$date = '2017-06-01';
$dateTime= new DateTime($date);
$result=$dateTime->sub(new DateInterval("P".$noOfDays."D"));//subtracting date by $noOfDays days
print_r($result->format("Y-m-d"));//returning specific format of date.

Output: 2017-05-31

Answer 3

here strtotime('-1 day', strtotime($date) subtract 1 day from given date & the convert into date with date function with given format :

<?php
$date = '2017-06-01';
echo date('Y-m-d', strtotime('-1 day', strtotime($date)))
?>