<?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 ) );
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Value for `_results` contains invalid data `array`