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<?php $ids = [1, 1, 1, 2, 5, 1]; $sizes = ["m", "m", "m", "s", "xl", "s"]; $colors = ["red", "red", "yellow", "orange", "red", "orange"]; foreach ($ids as $i => $id) { $size = $sizes[$i]; $color = $colors[$i]; $tempKey = "{$id}:{$size}:{$color}"; if (!isset($result[$tempKey])) { $result[$tempKey] = [ 'id' => $id, 'size' => $size, 'color' => $color, 'stock' => 1 ]; } else { ++$result[$tempKey]['stock']; } } var_export(array_values($result));
Output for 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
array ( 0 => array ( 'id' => 1, 'size' => 'm', 'color' => 'red', 'stock' => 2, ), 1 => array ( 'id' => 1, 'size' => 'm', 'color' => 'yellow', 'stock' => 1, ), 2 => array ( 'id' => 2, 'size' => 's', 'color' => 'orange', 'stock' => 1, ), 3 => array ( 'id' => 5, 'size' => 'xl', 'color' => 'red', 'stock' => 1, ), 4 => array ( 'id' => 1, 'size' => 's', 'color' => 'orange', 'stock' => 1, ), )
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 array ( 0 => array ( 'id' => 1, 'size' => 'm', 'color' => 'red', 'stock' => 2, ), 1 => array ( 'id' => 1, 'size' => 'm', 'color' => 'yellow', 'stock' => 1, ), 2 => array ( 'id' => 2, 'size' => 's', 'color' => 'orange', 'stock' => 1, ), 3 => array ( 'id' => 5, 'size' => 'xl', 'color' => 'red', 'stock' => 1, ), 4 => array ( 'id' => 1, 'size' => 's', 'color' => 'orange', 'stock' => 1, ), )

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180.96 ms | 403 KiB | 182 Q