change color if due date within 3 days from current date php

Question

I have 2 variables,

$current_date = "27-05-2017";
$due_date = "29-05-2017";

All the above date is dynamic which is fetched from mysql. $due_date will change.

If the $due_date is within +3 days from the $due_date , then the color should change.

For example,

If $current_date = "27-05-2017" and $due_date = "28-05-2017", $due_date = "29-05-2017", $due_date = "30-05-2017" the color should be orange .

If $current_date = "27-05-2017" and $due_date = "31-05-2017", $due_date = "01-06-2017" the color should be blue .

I have tried using the below code.

$due_date = "30-05-2017";
$cur_date = "27-05-2017";

if($due_date > strtotime("+1 day", strtotime($cur_date)) or $due_date < strtotime("+2 day", strtotime($cur_date)) or $due_date < strtotime("+3 day", strtotime($cur_date)))
    echo "orange";
else
    echo "blue";

The code not working for all the conditions. How to fix this.

Answer 1

You can do with one condition:

$due_date = "30-05-2017";
$cur_date = "27-05-2017";

if(strtotime($due_date) > strtotime($cur_date) && strtotime($due_date) <= strtotime("$cur_date +3 day"))

    echo "orange";
else
    echo "blue";