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@ 2017-10-18T14:45:21Z

<?php

$array1 = [];

$array2 = [0 => '2'];

$array3 = [0 => '2'];

array_push($array1, ...$array2);
array_push($array1, ...$array3);

print_r($array1);

Output
Performance
VLD
References
Branches

array_push: documentation ( source)
print_r: documentation ( source)

preferences:dark modelive preview

53.53 ms | 402 KiB | 5 Q