Online PHP editor | output for 9HZL8

<?php $dates = [ ['date_starts'=>'2021-03-22'], ['date_starts'=>'2022-04-22'], ['date_starts'=>'2023-05-22'] ]; $current_year = date('Y'); foreach ($dates as $dt) { $rates_results = [ ['price'=>255, 'year'=>'2021'], ['price'=>200, 'year'=>'2021'], ['price'=>300, 'year'=>'2023'] ]; // get the year from the start date. Since it's in YYYY-MM-DD format // we can just use substr $start_year = substr($dt['date_starts'], 0, 4); // find matching years in $rates_results $rate_keys = array_keys(array_column($rates_results, 'year'), $start_year); // any matches? if (empty($rate_keys)) { // no, use the values from the current year instead $rate_keys = array_keys(array_column($rates_results, 'year'), $current_year); } // get the actual rates $code = 1; $rates = array(); foreach ($rate_keys as $key) { $rates[] = [ 'custom' => $code, 'price' => $rates_results[$key]['price'], 'year' => $rates_results[$key]['year'] ]; } // output the rates print_r($rates); }