Laravel Version

12.48.1

PHP Version

8.4

Database Driver & Version

No response

Description

Invalid validation in compileIndexHint

Illuminate/Database/Query/Grammars/MySqlGrammar.php

if (! preg_match('/^[a-zA-Z0-9_$]+$/', $index)) {
    throw new InvalidArgumentException('Index name contains invalid characters.');
}

MySql can use multiply index https://dev.mysql.com/doc/refman/8.4/en/index-hints.html
Need add \s+ and (,)

Steps To Reproduce

$builder->useIndex('user_id, PRIMARY')