php - 在一行中添加一个新值，与旧值相邻，并用逗号分隔

Question

我在 pushed_close 列中的值是“09:51”。

我需要在值“09:51”旁边的pushed_close列中添加值2，例如:

09:51,09:54(以逗号分隔)。

我的 PHP 代码:

$connection = db_connect();
        $username = $_SESSION['username'];
        $ora_terminare = '09:54';
        mysqli_begin_transaction($connection);
        $query = mysqli_query($connection, "UPDATE birouri SET closed_program = 'DA', pushed_closed = '$ora_terminare' WHERE username = '$username'");
        mysqli_commit($connection);

如何创建正确的 Mysqli 查询？

Answer 1

$connection = db_connect();
$username = $_SESSION['username'];
$ora_terminare = '09:54';
mysqli_begin_transaction($connection);
$query = mysqli_query($connection, "UPDATE birouri SET closed_program = 'DA', pushed_closed = concat(coalesce(pushed_closed, ''), ',', '$ora_terminare') WHERE username = '$username'");
mysqli_commit($connection);

与旧值相结合将为您带来好处。