In a migration file when the table name is variable like $config['role'], an exception thrown :
SQLSTATE[42000]: Syntax error or access violation: 1064 You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '[roles]' at line 1 (SQL: DESCRIBE $config[roles])
In a migration file when the table name is variable like
$config['role']
, an exception thrown :