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PHP Date Exercises : Time difference in days and years, months, days, hours, minutes, seconds between two dates

PHP date: Exercise-11 with Solution

Write a PHP script to get time difference in days and years, months, days, hours, minutes, seconds between two dates.

Note : Use DateTime class.

Sample Solution:

PHP Code:

<?php
$date1 = new DateTime('2012-06-01 02:12:51');
$date2 = $date1->diff(new DateTime('2014-05-12 11:10:00'));
echo $date2->days.'Total days'."\n";
echo $date2->y.' years'."\n";
echo $date2->m.' months'."\n";
echo $date2->d.' days'."\n";
echo $date2->h.' hours'."\n";
echo $date2->i.' minutes'."\n";
echo $date2->s.' seconds'."\n";
?>

Sample Output: 

710Total days                                               
1 years                                                     
11 months                                                   
10 days                                                     
8 hours                                                     
57 minutes                                                  
9 seconds

Flowchart :

Flowchart: Time difference in days and years, months, days, hours, minutes, seconds between two dates

PHP Code Editor:

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Previous: Write a PHP script to check whether the given dates are valid or not?
Next: Write a PHP script to change month number to month name.

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PHP: Tips of the Day

How to Sort Multi-dimensional Array by Value?

Try a usort, If you are still on PHP 5.2 or earlier, you'll have to define a sorting function first:

Example:

function sortByOrder($a, $b) {
    return $a['order'] - $b['order'];
}

usort($myArray, 'sortByOrder');

Starting in PHP 5.3, you can use an anonymous function:

usort($myArray, function($a, $b) {
    return $a['order'] - $b['order'];
});

And finally with PHP 7 you can use the spaceship operator:

usort($myArray, function($a, $b) {
    return $a['order'] <=> $b['order'];
});

To extend this to multi-dimensional sorting, reference the second/third sorting elements if the first is zero - best explained below. You can also use this for sorting on sub-elements.

usort($myArray, function($a, $b) {
    $retval = $a['order'] <=> $b['order'];
    if ($retval == 0) {
        $retval = $a['suborder'] <=> $b['suborder'];
        if ($retval == 0) {
            $retval = $a['details']['subsuborder'] <=> $b['details']['subsuborder'];
        }
    }
    return $retval;
});

If you need to retain key associations, use uasort() - see comparison of array sorting functions in the manual

Ref : https://bit.ly/3i77vCC