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<?php $a = [ ['DATE' => '2012-11-28', 'totalCount' => null], ['DATE' => '2012-11-29', 'totalCount' => null], ['DATE' => '2012-11-30', 'totalCount' => null], ]; $b = [ 10 => ['DATE' => '2012-11-28', 'totalCount' => 30], 11 => ['DATE' => '2012-11-30', 'totalCount' => 40], 12 => ['DATE' => '2012-12-05', 'totalCount' => 50], ]; $map = array_column($b, null, 'DATE'); var_export( array_map( fn($row) => $map[$row['DATE']] ?? $row, $a ) );
Output for 8.1.32 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
array ( 0 => array ( 'DATE' => '2012-11-28', 'totalCount' => 30, ), 1 => array ( 'DATE' => '2012-11-29', 'totalCount' => NULL, ), 2 => array ( 'DATE' => '2012-11-30', 'totalCount' => 40, ), )
preferences:
52.22 ms | 863 KiB | 4 Q