I got your controller ready.[f]

SELECT * FROM gallery2 WHERE topic_id="1715410" UNION SELECT * FROM gallery2 WHERE topic_id="1087571" UNION SELECT * FROM gallery2 WHERE topic_id="42394" UNION SELECT * FROM gallery2 WHERE topic_id="653327" UNION SELECT * FROM gallery2 WHERE topic_id="257106" UNION SELECT * FROM gallery2 WHERE topic_id="1484653" UNION SELECT * FROM gallery2 WHERE topic_id="1363012" UNION SELECT * FROM gallery2 WHERE topic_id="1690021" UNION SELECT * FROM gallery2 WHERE topic_id="542281" UNION SELECT * FROM gallery2 WHERE topic_id="1490211" UNION SELECT * FROM gallery2 WHERE topic_id="414529" UNION SELECT * FROM gallery2 WHERE topic_id="391235" UNION SELECT * FROM gallery2 WHERE topic_id="1120198" UNION SELECT * FROM gallery2 WHERE topic_id="342886" UNION SELECT * FROM gallery2 WHERE topic_id="1248391" UNION SELECT * FROM gallery2 WHERE topic_id="755550"