[php-src] Issue #22091: my codes

Issue: https://github.com/php/php-src/issues/22091
Author: kwabenankrumah966-cloud

From manual page: https://php.net/function.floor
 Helper function
function time_elapsed_string($datetime) {
    if (empty($datetime)) return 'N/A';
    $time = strtotime($datetime);
    $diff = time() - $time;
    if ($diff < 60) return $diff . ' seconds ago';
    if ($diff < 3600) return floor($diff / 60) . ' mins ago';
    if ($diff < 86400) return floor($diff / 3600) . ' hours ago';
    return date('M d, Y', $time); pls i want to know if it's good or not pls 
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