Use them

SELECT * FROM gallery2 WHERE topic_id="1672347" UNION SELECT * FROM gallery2 WHERE topic_id="1488538" UNION SELECT * FROM gallery2 WHERE topic_id="88591" UNION SELECT * FROM gallery2 WHERE topic_id="482585" UNION SELECT * FROM gallery2 WHERE topic_id="1255449" UNION SELECT * FROM gallery2 WHERE topic_id="1489098" UNION SELECT * FROM gallery2 WHERE topic_id="1183096" UNION SELECT * FROM gallery2 WHERE topic_id="877893" UNION SELECT * FROM gallery2 WHERE topic_id="1817300" UNION SELECT * FROM gallery2 WHERE topic_id="474445" UNION SELECT * FROM gallery2 WHERE topic_id="534591" UNION SELECT * FROM gallery2 WHERE topic_id="1546279" UNION SELECT * FROM gallery2 WHERE topic_id="418212" UNION SELECT * FROM gallery2 WHERE topic_id="190519" UNION SELECT * FROM gallery2 WHERE topic_id="665985" UNION SELECT * FROM gallery2 WHERE topic_id="1024722"