3v4l.org

run code in 300+ PHP versions simultaneously
<?php $t = ['1234' => [5, 'wda', 'sd'], '321' => ['5sd', 'awdaw', '1sd3']]; $t2 = ['123123' => [15, '1wda', 's32d'], '321' => ['12', 'ds']]; $t = $t2 + $t; var_dump($t);

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47.96 ms | 402 KiB | 5 Q