问答项目---格式化输出提问时间!

格式化输出提问时间：

/**
 * 格式化时间戳
 */
function time_format ($time) {
    $now = time();
    $today = strtotime(date('y-m-d'));
    $zuotian = strtotime('-1 day', $today);

    $diff = $now - $time;

    $str = '';
    switch (true) {
        case $diff < 60 :
            $str = '刚刚';
            break;
        case $diff < 3600 :
            $str = floor($diff / 60) . '分钟前';
            break;
        case $diff < (3600 * 8) :
            $str = floor($diff / 3600) . '小时前';
            break;
        case $time > $today :
            $str = '今天' . date('H:i', $time);
            break;
        case $time > $zuotian :
            $str = '昨天' . date('H:i', $time);
            break;
        default :
            $str = date('Y-m-d H:i', $time);
    }
    return $str;
}

前台使用：

<span>{$v.time|time_format=###}</span>