Online PHP editor | refs for ISp0A

<?php $data = [ ["tahun" => 2001, "bulan" => 1, "pembetulan" => 0], ["tahun" => 2002, "bulan" => 1, "pembetulan" => 0], ["tahun" => 2002, "bulan" => 1, "pembetulan" => 1], ["tahun" => 2003, "bulan" => 1, "pembetulan" => 0], ["tahun" => 2003, "bulan" => 1, "pembetulan" => 1], ["tahun" => 2003, "bulan" => 1, "pembetulan" => 2], ["tahun" => 2003, "bulan" => 1, "pembetulan" => 3], ["tahun" => 2003, "bulan" => 1, "pembetulan" => 4], ["tahun" => 2003, "bulan" => 2, "pembetulan" => 0] ]; $result = []; foreach ($data as $row) { $compositeKey = $row['tahun'] . '_' . $row['bulan']; if (!isset($result[$compositeKey]) || $row['pembetulan'] > $result[$compositeKey]['pembetulan']) { $result[$compositeKey] = $row; } } var_export( array_values($result) );