Find Number of Days Between Two Dates

The diff() function in PHP calculates the difference between two dates. It accepts two `DateTime` objects or date strings as arguments, returning a `DateInterval` object that provides the difference in years, months, days, and other intervals.

Example

<?php

$date1 = new DateTime("2023-05-01");
$date2 = new DateTime("2024-12-24");

$interval = $date1->diff($date2);

echo "Difference: " 
    . $interval->y . " years, " 
    . $interval->m . " months, " 
    . $interval->d . " days\n";

echo "Total days difference: " . $interval->days;
    
?>

Output

Difference: 1 years, 7 months, 23 days
Total days difference: 603

Here is an example to find the date and time difference between two date.

Example

<?php

$date1 = new DateTime("2023-07-06 14:30:00");
$date2 = new DateTime("2024-12-24 18:45:30");

$interval = $date1->diff($date2);

echo "Difference: " 
    . $interval->y . " years, " 
    . $interval->m . " months, " 
    . $interval->d . " days, "
    . $interval->h . " hours, "
    . $interval->i . " minutes, "
    . $interval->s . " seconds ";

echo "\nTotal days difference: " . $interval->days;

?>

Output

Difference: 1 years, 5 months, 18 days, 4 hours, 15 minutes, 30 seconds

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