Uncaught ValueError: mysqli_stmt::execute(): Argument #1 ($params) must be a list array

I'm trying to insert prepared statemant multiple values in my database through these two queries, which are both malfunctioning, returning either

Uncaught Error: Call to undefined method mysqli_stmt::bindValue()

for the first code or

Uncaught ValueError: mysqli_stmt::execute(): Argument #1 ($params) must be a list array

for second one. When I type list instead of array, it says

syntax error

notice all variable, table and column names are a simplified variant

I've seen a lot of similar questions, but none of them answer my problem. Not even the one that this is the 'duplicate' of.

Does anyone have a solution, or, maybe, an alternative?

Here are the two codes:

if(isset($_POST['ID'], $_POST['atr1'])){

        $sql = $db -> prepare("INSERT INTO some_table (ID, atr_place) VALUES (':fir', ':sec')");
        
        $sql -> bindValue(':fir', $_POST['ID'],);
        $sql -> bindValue(':sec', $_POST['atr1'],);
        $sql -> execute();
}

$sql = $db -> prepare("INSERT INTO some_table (ID, atr_place) VALUES (:fir, :sec)");
$sql -> execute(array(
    ':fir' => $_POST['ID'],
    ':sec' => $_POST['atr1'],
));

Solution

As the error messages make clear, you're using the mysqli library to communicate with your database. However your code seems to be based on examples which use PDO, which is a different library entirely. While superficially some of the function names are similar, they actually have different APIs and requirements.

For example, some API differences are:

mysqli doesn't support named parameters, only anonymous placeholders specified with ?
PDO has bindParam and bindValue functions, whereas mysqli has bind_param
until PHP 8.1, mysqli did not accept a parameter list provided directly via the execute() function.

This code should work with mysqli:

If you have PHP 8.1 or above:

$sql = $db->prepare("INSERT INTO some_table (ID, atr_place) VALUES (?, ?)");
$sql->execute([$_POST['ID'], $_POST['atr1']]);

Otherwise:

$sql = $db->prepare("INSERT INTO some_table (ID, atr_place) VALUES (?, ?)");
$sql->bind_param("ss", $_POST['ID'], $_POST['atr1']);
$sql->execute();