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<?php $array = [ 0 => [ "platform"=> "Google", "positive"=> "10", "negative"=> "5", "blocked"=> "1", ], 1 => [ "platform"=> "Yandex", "positive"=> "6", "negative"=> "2", "blocked"=> "1", ], 2 => [ "platform"=> "Google", "positive"=> "15", "negative"=> "35", "blocked"=> "23", ] ]; $result = array_values(array_reduce($array, function($carry, $item) { foreach($item as $k => $v) { if (isset($carry[$item['platform']][$k])) { if (is_numeric($v)) $carry[$item['platform']][$k] += $v; } else $carry[$item['platform']][$k] = $v; } return $carry; }, [])); print_r($result);
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 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 - 8.3.7
Array ( [0] => Array ( [platform] => Google [positive] => 25 [negative] => 40 [blocked] => 24 ) [1] => Array ( [platform] => Yandex [positive] => 6 [negative] => 2 [blocked] => 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 ( [platform] => Google [positive] => 25 [negative] => 40 [blocked] => 24 ) [1] => Array ( [platform] => Yandex [positive] => 6 [negative] => 2 [blocked] => 1 ) )
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/ZJu8B on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[' in /in/ZJu8B on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/ZJu8B on line 3
Process exited with code 255.

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