Odtnhj

I get two values from GET

$start = $_GET['start']; 
$end = $_GET['end'];

These are:

1-11-2018
30-11-2018

Then I remove the dash to create a whole number

$start = str_replace(["-", "–"], '', $start);
$end = str_replace(["-", "–"], '', $end);

Now we have:

1112018
30112018

Then we do a loop over our posts (we only have 2 posts) and we grab the value from a custom field:

$myDate = get_post_meta($id, 'usp-custom-80', TRUE);

Which gives us:

13-11-2017
26-11-2018

And then we do:

$myDate = str_replace(["-", "–"], '', $start);

And we have:

13112017
26112018

So now we can check if the value we're getting from the custom field is within or not the values we have from GET

if (($myDate >= $start) && ($myDate <= $end)) {
 //content....

But I am getting the logic wrong, also because the dates from GET could have 1 without a zero at the beginning 01 and the number would be less even tho the actual date is correct to be considered within it.

Any idea how I can check if $myDate is in between $start and $end?

UPDATE

If I don't remove dash and I get:

Start date: 1-11-2018
End date: 30-11-2018 
User date: 13-11-2017

And then I simply do:

if ( ( $myDate >= $start) && ( $myDate <= $end) ) {

I get ALL posts and not the filtered by range

You can use strtotime() to parse date then compare dates like below-

 $start = strtotime('1-11-2018');
 $end = strtotime('30-11-2018'); 
 $myDate = strtotime('13-11-2017');
 if ( ( $myDate >= $start) && ( $myDate <= $end) ) 
 ......
 // your other code goes here
 

You can simply do this way with DateTime class,

<?php
$myDate = new DateTime('26-11-2018'); // 13-11-2017 is not between you can test
$start = new DateTime('1-11-2018');
$end = new DateTime('30-11-2018');

if ($myDate > $start && $myDate < $end )
 echo "Date is between";
else
 echo "Date is not between!"; 

?>

DEMO: https://3v4l.org/Grv1X