/**
 * 日期按时间单位返回
 * @param  integer  $epoch_event 要处理的时间戳
 * @param  integer $range       要处理的时间差，时间差以外的按日期格式返回
 * @param  integer $level       1.只返回最接近的时间单位
 * @return string
 */
function time_ago($epoch_event, $range = 86400, $level = 1) {
    $time_ago = array();
    // $period = array('second', 'minute', 'hour', 'day', 'week', 'month', 'year', 'decade');
    $period = array('秒', '分', '小时', '天', '周', '月', '年', '十年');
    $difference = time() - $epoch_event;
    if ($difference >= $range) {
        return date('Y-m-d H:i');
    }
    if (($difference <= 59) && ($difference !== 0)) {
        $time_event = $difference / 1;
        return $time_event . $period[0] . '前';
    } elseif (($difference >= 60) && ($difference <= 3599)) {
        $time_event = $difference / 60;
        if (($difference % 60) === 0) {$add_time = '';}
        if (($difference % 60) !== 0) {$add_time = floor(($difference % 60) / 1) . $period[0];}
        if ($time_event === $level) {
            return $time_event . $period[1] . '前';
        } else {
            return floor($time_event) . $period[1] . $add_time . '前';
        }
    } elseif (($difference >= 3600) && ($difference <= 86399)) {
        $time_event = $difference / 3600;
        if (($difference % 3600) === 0) {$add_time = '';}
        if (($difference % 3600) !== 0) {$add_time = floor(($difference % 3600) / 60) . $period[1];}
        if ($time_event === $level) {
            return $time_event . $period[2] . '前';
        } else {
            return floor($time_event) . $period[2] . $add_time . '前';
        }
    } elseif (($difference >= 86400) && ($difference <= 604799)) {
        $time_event = $difference / 86400;
        if (($difference % 86400) === 0) {$add_time = '';}
        if (($difference % 86400) !== 0) {$add_time = floor(($difference % 86400) / 3600) . $period[2];}
        if ($time_event === $level) {
            return $time_event . $period[3] . '前';
        } else {
            return floor($time_event) . $period[3] . $add_time . '前';
        }
    } elseif (($difference >= 604800) && ($difference <= 2591999)) {
        $time_event = $difference / 604800;
        if (($difference % 604800) === 0) {$add_time = '';}
        if (($difference % 604800) !== 0) {$add_time = floor(($difference % 604800) / 86400) . $period[3];}
        if ($time_event === $level) {
            return $time_event . $period[4] . '前';
        } else {
            return floor($time_event) . $period[4] . $add_time . '前';
        }
    } elseif (($difference >= 2592000) && ($difference <= 31103999)) {
        $time_event = $difference / 2592000;
        if (($difference % 2592000) === 0) {$add_time = '';}
        if (($difference % 2592000) !== 0) {$add_time = floor(($difference % 2592000) / 604800) . $period[4];}
        if ($time_event === $level) {
            return $time_event . $period[5] . '前';
        } else {
            return floor($time_event) . $period[5] . $add_time . '前';
        }
    } elseif (($difference >= 31104000) && ($difference <= 311039999)) {
        $time_event = $difference / 31104000;
        if (($difference % 31104000) === 0) {$add_time = '';}
        if (($difference % 31104000) !== 0) {$add_time = floor(($difference % 86400) / 2592000) . $period[5];}
        if ($time_event === $level) {
            return $time_event . $period[6] . '前';
        } else {
            return floor($time_event) . $period[6] . $add_time . '前';
        }
    } elseif ($difference >= 311040000) {
        return $period[7] . '前';
    } else {
        return '刚刚'; // in case $epoch_event gets set to time();
    }
    return $time_ago;
}

这是我抓的我mime,自己简单写了个方法,虽然受限制,但是对我项目实用

/**
     * 校验Excel mime类型
     * @return bool
     */
    public function checkExcelFileMime()
    {
        $excel_mime_hash = [
            'application/vnd.ms-excel',
            'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet'
        ];
        if (in_array($this->excelFile->type, $excel_mime_hash, true)) {
            return true;
        }
        return false;
    }

我做Excel的时候也发现了这个问题,后来我把验证规则MimeType验证关闭了.
后来自己根据文件类型写了个验证规则
这是我的验证规则

[['excelFile'], 'file', 'skipOnEmpty' => true, 'checkExtensionByMimeType' => false, 'extensions' => 'xls,xlsx'],

我做Excel的时候也发现了这个问题,后来我把验证规则MimeType验证关闭了.
后来自己根据文件类型写了个验证规则
这是我的验证规则

[['excelFile'], 'file', 'skipOnEmpty' => true, 'checkExtensionByMimeType' => false, 'extensions' => 'xls,xlsx'],

我做Excel的时候也发现了这个问题,后来我把验证规则MimeType验证关闭了.
后来自己根据文件类型写了个验证规则
这是我的验证规则

[['excelFile'], 'file', 'skipOnEmpty' => true, 'checkExtensionByMimeType' => false, 'extensions' => 'xls,xlsx'],