Fatal Error: Uncaught Argumentcounterror: Too Few Arguments to Function

Fatal error: Uncaught ArgumentCountError: Too few arguments to function

Your method needs 5 arguments, you only pass 2: User->register('ds', 'dsssssss')

Edit this line in Register.php:

$user->register($username, $password)

to

$user->register($name, $surname, $username, $password, $email)

Additionally you have this line twice $stmt->bindParam(":password", $password);

php - Fatal error: Uncaught ArgumentCountError: Too few arguments to function PostManager::__construct()

Try this:

$stmt->setFetchMode(PDO::FETCH_CLASS, 'PostManager', array($conn, $postId));

You forgot to pass the parameters here.

This is the signature you wanna use:

public PDOStatement::setFetchMode(int $mode = PDO::FETCH_CLASS, string $class, ?array $constructorArgs): bool

As you can see if the Ctor has args then you need to pass them as another parameter

array $constructorArgs

Uncaught ArgumentCountError: Too few arguments to function order_completed(). on woocommerce_order_status_completed hook

You've passed 4 arguments to your callback function, but in your hook you specified only 1.

Replace

add_action( 'woocommerce_order_status_completed', 'order_completed',10,1);

With

add_action( 'woocommerce_order_status_completed', 'order_completed', 10, 4);

PHP Fatal error: Uncaught ArgumentCountError: Too few arguments to function Kit\core::__construct() on PDO class

Look in your global .php on Line 24 (its probably this line: $core = new Kit\core();)

In your class.core.php you tell the constructor that it will get a connection, but in your global.php you dont give constructor (when you initialize a class) any argument.

That's what this error is telling you

PHP Fatal error:  Uncaught ArgumentCountError: Too few arguments to function Kit\core::__construct(), 0 passed

Just guessing, but i think

$core = new Kit\core($engine->pdo); 

will fix your issue.

PHP Fatal error: Uncaught ArgumentCountError: Too few arguments to function sendRegistrationErrorNotification()

First error

There is a call to sendRegistrationErrorNotification inside submitNewClientRegistration which is only using 1 parameter.

This function requires 3 parameters, you need to send $form and $entry as the second and third params... inside sendRegistrationErrorNotification they are used inside one of your strings so you couldn't just set the default values as you would still get an error.

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