MySQL INSERT查询不会更新数据库

Question

attent table :

id int(11) primary key

userID int (11) forigen key from users table

date date

start_time text

end_time text

approv enum default 0

my query :

             $sql = "INSERT INTO attent ".
                   "(id,userID,date,start_time,end_time,approv) ".
               "VALUES ".
               "('NULL','$userid','$date','$start_time','$end_time','NULL')";

              $query = mysqli_query($db,$sql);

I got config.php file that help communicate with dB. I did a few insert queries before and all of them work just fine. I can not understand where is my mistake.

Answer 1

Try like this use back tick,because date is reserved word in mysql

 $sql = "INSERT INTO `attent` ".
               "(`id`,`userID`,`date`,`start_time`,`end_time`,`approv`) ".
           "VALUES ".
           "('','$userid','$date','$start_time','$end_time','')";

Answer 2

Write your query as below:-

"INSERT INTO attent(`id`,`userID`,`date`,`start_time`,`end_time`,`approv`)
VALUES(NULL,'$userid','$date','$start_time','$end_time',NULL)"

Answer 3

It's easier to understand what's going on if you will try to put such a query manually through eg phpMyAdmin

I don't know your table structure but try to skip id attribute as it's often autoincrementable. You can always skip the fields that is not set to NOT NULL .

Like that:

$sql = "INSERT INTO `attent` ".
       "(`userID`,`date`,`start_time`,`end_time`,`approv`) ".
       "VALUES ".
       "('$userid','$date','$start_time','$end_time','')";