Как добавить доп. поле DLE в PHP?

ERROR: Неизвестная пунктуация @ 18
STR: ->
SQL: $sql_result = $db->query( "SELECT p.id, p.title, p.category, p.alt_name, p.xfields, e.news_read FROM " . PREFIX . "_post as p LEFT JOIN " . PREFIX . "_post_extras e ON (p.id=e.news_id) WHERE approve=1 ".$category_true." ORDER BY e.news_read DESC LIMIT ".$top100_config['news_num'] )

SQL запрос: Документация

$sql_result = $db->query( "SELECT p.id, p.title, p.category, p.alt_name, p.xfields, e.news_read FROM " . PREFIX . "_post as p LEFT JOIN " . PREFIX . "_post_extras e ON (p.id=e.news_id) WHERE approve=1 ".$category_true." ORDER BY e.news_read DESC LIMIT ".$top100_config['news_num'] )

Ответ MySQL: Документация

#1064 - You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '$sql_result = $db->query( "SELECT p.id, p.title, p.category, p.alt_name, p.xfiel' at line 1