I have bumped the minor version to 4.1.2 with this release which incorporates various pull requests from contributors. Of note is support for ALTER statements in PHPSQLCreator, which is the components of PHP-SQL-Parser responsible for turning a parse tree back into an executable SQL statement, basically an "unparser".
I took some time this morning to check out and merge some
existing pull requests for PHP-SQL-Parser, the most popular SQL
parser for MySQL and PHP.
I'm thinking about adding a Validate($conn,$sql) method to the parser to validate the syntax of the SQL against the given MySQL database.