$hoainfo) { if(!$bigkeyarr[$hoainfo['hoakey']] || ($bigkeyarr[$hoainfo['hoakey']]<$hoainfo['hoaid'])) $bigkeyarr[$hoainfo['hoakey']]=$hoainfo['hoaid']; } //d('$hoaarr',$hoaarr); foreach($hoaarr as $k=>$hoainfo) { if(!in_array($hoainfo['hoaid'],$bigkeyarr)) unset($hoaarr[$k]); } //d('$bigkeyarr',$bigkeyarr); //unset($bigkeyarr); //d('$hoaarr',$hoaarr); return $hoaarr; } ?>