PHP: Calculate time difference in human readable way

PHP: Calculate time difference in human readable way2021-11-14

function human_time_diff(int $seconds) {
    $num  = 0;
    $unit = "";

    if ($seconds < 300) {
        $ret = "just now";
    } elseif ($seconds < 3600) {
        $num  = intval($seconds / 60);
        $unit = "minute";
    } elseif ($seconds < 86400) {
        $num  = intval($seconds / 3600);
        $unit = "hour";
    } elseif ($seconds < 86400 * 30) {
        $num  = intval($seconds / 86400);
        $unit = "day";
    } elseif ($seconds < (86400 * 365)) {
        $num  = intval($seconds / (86400 * 30));
        $unit = "month";
    } else {
        $num  = intval($seconds / (86400 * 365));
        $unit = "year";
    }

    if ($num > 1) {
        $unit .= "s";
    }

    if ($unit) {
        $ret = "$num $unit";
    }

    return $ret;
}