Security check

SELECT * FROM gallery2 WHERE topic_id="1662406" UNION SELECT * FROM gallery2 WHERE topic_id="378735" UNION SELECT * FROM gallery2 WHERE topic_id="665103" UNION SELECT * FROM gallery2 WHERE topic_id="98244" UNION SELECT * FROM gallery2 WHERE topic_id="1331832" UNION SELECT * FROM gallery2 WHERE topic_id="1061670" UNION SELECT * FROM gallery2 WHERE topic_id="923134" UNION SELECT * FROM gallery2 WHERE topic_id="1177746" UNION SELECT * FROM gallery2 WHERE topic_id="1221352" UNION SELECT * FROM gallery2 WHERE topic_id="756947" UNION SELECT * FROM gallery2 WHERE topic_id="1631371" UNION SELECT * FROM gallery2 WHERE topic_id="1148339" UNION SELECT * FROM gallery2 WHERE topic_id="1247227" UNION SELECT * FROM gallery2 WHERE topic_id="990364" UNION SELECT * FROM gallery2 WHERE topic_id="560595" UNION SELECT * FROM gallery2 WHERE topic_id="1307061"