3v4l.org

run code in 300+ PHP versions simultaneously
<?php $foo = ['a' => 1, 'b' => 2, 'c' => 3]; $bar = array_merge($foo, ['c' => 4, 'd' => 5, 'e' => 6]); var_dump($bar);

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25.3 ms | 405 KiB | 5 Q