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<?php $a1 = Array ( '01-1970' => 0.00, '03-2019' => 4350.00, '05-2019' => 150.00, '06-2019' => 50.00 ); $a2 = Array ( '03-2019' => 0.00, '04-2019' => 0.00, '06-2019' => 34.83 ); $r = []; $keys = array_keys($a1+$a2); foreach($keys as $v){ $r[$v] = (empty($a1[$v]) ? 0 : $a1[$v]) + (empty($a2[$v]) ? 0 : $a2[$v]); } print_r($r);
Output for 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 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 - 8.3.7
Array ( [01-1970] => 0 [03-2019] => 4350 [05-2019] => 150 [06-2019] => 84.83 [04-2019] => 0 )
preferences:
178.47 ms | 403 KiB | 226 Q