How Can I Efficiently Display Time Elapsed Since a Given Date-Time Stamp in PHP?

Determining Time Elapsed from a Date-Time Stamp in PHP

When dealing with date-time data, it's often essential to calculate the elapsed time since a specific point in the past. This practical question seeks to find an efficient method to convert a date-time stamp like "2010-04-28 17:25:43" into a user-friendly format such as "xx Minutes Ago" or "xx Days Ago."

To tackle this problem effectively, consider the following solution:

$time = strtotime('2010-04-28 17:25:43');

echo 'Event occurred ' . humanTiming($time) . ' ago';

function humanTiming($time) {
    $time = time() - $time;
    $time = ($time < 1) ? 1 : $time;
    $units = [
        31536000 => 'year',
        2592000 => 'month',
        604800 => 'week',
        86400 => 'day',
        3600 => 'hour',
        60 => 'minute',
        1 => 'second',
    ];

    foreach ($units as $unit => $text) {
        if ($time < $unit) {
            continue;
        }

        $numUnits = floor($time / $unit);

        return "$numUnits $text" . (($numUnits > 1) ? 's' : '');
    }
}

This solution utilizes PHP's strtotime() function to convert the input date-time string into a timestamp. It then subtracts the current timestamp from the input timestamp to obtain the elapsed time. To translate the elapsed time into a user-friendly format, it employs a predefined array of unit-to-text mappings ($units) and iterates through them to determine the appropriate unit (e.g., "day," "hour," etc.).

By implementing this approach, you can effectively determine and display the time elapsed since a given date-time stamp in PHP, providing clarity and convenience in your applications.

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