Prevent a warning in PHP 8.2 (#370)

* Prevent a warning in PHP 8.2

* Made a variable public to allow access in tests

Fix test case for issue 342

Fix PHP 8 deprecation notice (#331)

When using the project with PHP 8, you get the following notice: ```
PHP Deprecated:  Required parameter $options follows optional parameter $qchars in vendor\greenlion\php-sql-parser\src\PHPSQLParser\utils\ExpressionToken.php on line 59
```

Fixed identification of unique indexes (#300)

Unique indexes, excepted the first index in the list, were wrongly identified as non-unique.

Merge pull request #286 from nabab/patch-1

Prevent Undefined offset error

Merge pull request #234 from dbould/fix-failing-tests

Fixed 3/7 failing tests

Merge pull request #213 from xRahul/master

Fixed when REPLACE is used without INTO

Merge pull request #206 from greenlion/revert-205-master

Revert "fix for MULTIPLE_PARAM_PARENTHESIS sub tree expressions"

Merge branch 'svnsync'

CHG: the base_expr of a select-expression contains now an explicit alias (with "as"). Check your client code!
CHG: the parser output has been changed because of the new "hints" property (FROM clause)