Online PHP editor | refs for JIaqZ

<?php $arr_dates = array(20150616,20150615,20150612,20150611,20150610,20150609,20150608,20150605,20150604,20150603,20150602,20150601,20150529,20150528,20150521,20150514,20150507,20150430,20150423,20150416,20150409,20150402,20150326); $current_date = 20150616; $expected_trend_date = 20150516; $expected_result = 20150514; $trend_dates = usort($arr_dates, function ($date1, $date2) use ($expected_trend_date) { return ($expected_trend_date - $date1) < ($expected_trend_date - $date2); }); var_dump($trend_dates);