Deprecated: Required parameter $to_addr follows optional [duplicate]

Question

I do not understand I have this message appear (php8).

Thank you

Deprecated: Required parameter $to_addr follows optional parameter $to_name in /home/www/admin/OM/Mail.php on line 237

Deprecated: Required parameter $to_email_address follows optional parameter $to_name in /home/www/admin/OM/Mail.php on line 363

public function send(string $to_name = '', string $to_addr, string $from_name, string $from_addr, string $subject = '', bool $reply_to = false): bool

Answer 1

In PHP 8, named parameters were added. This means that from now, parameters without a default value, are required to be BEFORE optional parameters.

An optional parameter is one with a default value: function example(string $optional = '');. We call them optional, well, because they are optional, as you can call the function as follows: example();.

Therefore, your prototype should change from:

public function send(string $to_name = '', string $to_addr, string $from_name, string $from_addr, string $subject = '', bool $reply_to = false): bool

to

public function send(string $to_addr, string $from_name, string $from_addr, string $to_name = '', string $subject = '', bool $reply_to = false): bool

You can read more about it here: https://www.php.net/manual/en/functions.arguments.php