Prevent warning if we don't have Select

[ma0dubois]

Hi guys,

In this part of code:

pseudo/src/php-sql-parser.php

Line 1321 in 77282ca

foreach ($select as $clause) {

I've added this precaution:

#search to see if the expression matches an alias
if (is_array($select)) {
    foreach ($select as $clause) {
        if (!$clause['alias']) {
            continue;
        }
        if ($clause['alias']['name'] === $parseInfo['expr']) {
            $parseInfo['type'] = 'alias';
        }
    }
}

Because, when i don't have a select clause in my sql request, i had this warning:
Warning: Invalid argument supplied for foreach() ... on line 1321

Thx