Time with PHP to MySQL - php

Question

I'm a beginner in PHP and MySQL. Now I'm trying to get the date and time in MySQL. But without succes, I already been trying it for a couple of days :-(
The error message:
Error updating record: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax.
In MySQL I have given the variable timechoice the type 'DATETIME'. Is there the mistake or is it in my code? THANKS!
if ($_SERVER["REQUEST_METHOD"] == "POST") {
$choice = $_POST["choice"];
$today = date("y-m-d h:m:s");
$servername = "xxxxx";
$username = "xxxxx";
$password = "xxxxx";
$dbname = "xxxxx";
// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);
// Check connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
$sql = "UPDATE Deelnemers SET choice='$choice' timechoice='$today' WHERE teamnaam='".$_SESSION['username']."'";
if ($conn->query($sql) === TRUE) {
echo 'antwoord verwerkt';
} else {
echo "Error updating record: " . $conn->error;
}
$conn->close();
}
?>

Answer 1

As per your code, try using this query,
UPDATE Deelnemers SET choice='$choice',timechoice='$today' WHERE teamnaam='".$_SESSION['username']."';
Also, as you have mentioned you have this error,
Error updating record: You have an error in your SQL syntax; check the
manual that corresponds to your MariaDB server version for the right
syntax.
In MySQL I have given the variable timechoice the type 'DATETIME'. Is
there the mistake or is it in my code? THANKS!
Answer to this is, eitheir the field $today is not proper, if you have given DATETIME datatype in mysql then try this
$today = date("Y-m-d H:i:s");
P.S - I don't recommend you to use this,as your code is vulnerable.

Answer 2

Your SQL syntax is wrong,
$sql = "UPDATE Deelnemers SET choice = '$choice', timechoice = '$today' WHERE teamnaam = '".$_SESSION['username']."'";
Notice the commas after '$choice'.
I'd also point out several comments under your question in regards to SQL injection issues. These are important observations in ensuring DB security and handling user input.