$sql = "SELECT $cols FROM messages m JOIN issues i ON i.id = issue";
$sql .= " WHERE message IS NOT NULL";
$sql .= " AND i.page <> 'spam'";
$sql = "SELECT $cols FROM messages m JOIN issues i ON i.id = issue";
$sql .= " WHERE message IS NOT NULL";
$sql .= " AND i.page <> 'spam'";