php时间比较

来源：互联网发布：java程序员基本技能编辑：程序博客网时间：2024/04/30 11:25

function DateDiff($part, $begin, $end) {
    $diff = strtotime($end) - strtotime($begin);
    switch($part)
    {
        case "y": $retval = bcdiv($diff, (60 * 60 * 24 * 365)); break;
        case "m": $retval = bcdiv($diff, (60 * 60 * 24 * 30)); break;
        case "w": $retval = bcdiv($diff, (60 * 60 * 24 * 7)); break;
        case "d": $retval = bcdiv($diff, (60 * 60 * 24)); break;
        case "h": $retval = bcdiv($diff, (60 * 60)); break;
        case "i": $retval = bcdiv($diff, 60); break;
        case "s": $retval = $diff; break;
//       case "y": $retval = round($diff / (60 * 60 * 24 * 365)); break;
//        case "m": $retval = round($diff / (60 * 60 * 24 * 30)); break;
//       case "w": $retval = round($diff / (60 * 60 * 24 * 7)); break;
//        case "d": $retval = round($diff / (60 * 60 * 24)); break;
//       case "h": $retval = round($diff / (60 * 60)); break;
//       case "i": $retval = round($diff / 60); break;
//     case "s": $retval = $diff; break;
    }
    return $retval;
}