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@ 2019-04-29T06:44:31Z

<?php

$arr = [[["AAA", "BBB"]], [["CCC"]]];
function flatten($arr) {
    return array_merge(...$arr);
}
$arr = flatten(flatten($arr));
print_r($arr);

Output
Performance
VLD
References
Branches

print_r: documentation ( source)
array_merge: documentation ( source)

preferences:dark modelive previewkey bindings

24.01 ms | 405 KiB | 5 Q