php mysqli insert date to DATE type

Question

$NOW = new DateTime();
$date = $NOW->format('Y-m-d'); // return 2018-05-17

I want to update date in database to now date.

Query:

$sql = "UPDATE table SET date = $date WHERE id = $id";

But it update time like this => 0000-00-00

The type of this column is DATE

Why? what I have done wrong?

Answer 1

You can try mysql now() function to update date.

$sql = "UPDATE table SET date = now() WHERE id = $id";

Or you should add single qoutes in query

$sql = "UPDATE table SET date = '".$date."' WHERE id = $id";

Answer 2

Simply add your date value in quotes then try. Change your query to :

$sql = "UPDATE table SET date = '$date' WHERE id = $id";

Answer 3

尝试这个

$sql = "UPDATE table SET `date` = now() WHERE id = '".$id."' ";