Laravel多个WHERE子句

Question

我需要在Laravel SQL查询中添加多个where子句.

到目前为止我的PHP代码已经:

date_default_timezone_set('America/Los_Angeles');

$today = getdate();
$year = $today['year'];
$month = $today['mon'];
$day = $today['mday'];

$today_ = $day.'-'.$month.'-'.$year;
$result = DB::table('task')
    ->select('*')
    ->where(
        ['rowstate', '<>', 'Ready'],
        ['DATE_FORMAT(due_date, "%d-%m-%y")', '<', $today_])
    ->get();

但上面的代码返回:

Column not found: 1054 Unknown column '0' in 'where clause' 
(SQL: select * from `task_tab` where (`0` = rowstate and `1` = <> and `2` = Ready))

我想生成以下SQl语句:

SELET * 
FROM task
WHERE rowstate <> 'Ready'
AND DATE_FORMAT(due_date, "%d-%m-%y") < $today

Answer 1

您有2种可能的解决方案.

代替:

->where(['rowstate', '<>', 'Ready'], ['DATE_FORMAT(due_date, "%d-%m-%y")', '<', $today_])

您可以使用

->where('rowstate','<>','Ready')->where(DB::raw('DATE_FORMAT(due_date, "%d-%m-%y"','<', $today_);

要么

你可以使用这样的数组语法:

->where([
    ['rowstate', '<>', 'Ready'], 
    [DB::raw('DATE_FORMAT(due_date, "%d-%m-%y")'), '<', $today_]
 ]);

总而言之,您错过了将数据封装到外部数组中,DB::raw如果不使用原始列名,则需要使用