No database connection?

Question

PHP

I want to connect to the database, but I get an error: SQLSTATE[HY000] [1193] Unknown system variable 'NAME'
. What could be the error?
database.php

<?php
class Database extends PDO{
    public function __construct() {
        parent::__construct(
                'mysql:host='.DB_HOST.
                ';dbname='.DB_NAME,
                DB_USER,DB_PASS,array(
                    PDO::MYSQL_ATTR_INIT_COMMAND =>"SET NAME 'utf8'".DB_CHAR)
                );
        }
}

And the config.php file

define('DB_HOST', 'localhost');
define('DB_USER', 'admin');
define('DB_PASS', '123456');
define('DB_NAME', 'test');
define('DB_CHAR', 'utf8');

Answer 1

there seems to be an error here too:
it should be
"SET NAMES '".DB_CHAR."'"

Answer 2

Judging by the text of the error, you are told that we do not understand the NAME variable. I'm not the biggest expert in MySQL and PDO in particular, but I think you should write 'SET NAMES utf8'.

Answer 3

PDO::MYSQL_ATTR_INIT_COMMAND =>"SET NAMES ".DB_CHAR)