<?php $array1 = [ ["ID" => "AAAA", "Name" => "Apple"], ["ID" => "BBBB", "Name" => "Avocado"], ["ID" => "CCCC", "Name" => "Banana"] ]; $array2 = [ [ "ID" => "AAAA", "Taste" => "Yumi", "Location" => "France", "Price" => "Cheap" ], [ "ID" => "CCCC", "Taste" => "Yumi", "Location" => "Africa", "Price" => "Cheap" ], [ "ID" => "BBBB", "Taste" => "Yumi", "Location" => "America", "Price" => "Expensive" ], [ "ID" => "HZGA", "Taste" => "Berk", "Location" => "Moon", "Price" => "Expensive" ] ]; $lookup = array_column($array2, null, 'ID'); foreach ($array1 as &$row) { $row += $lookup[$row['ID']] ?? []; } var_export($array1);
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