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@ 2022-09-02T21:39:30Z

<?php
$arr = [1, 2, 3, 4];
print_r(array_map(fn(int $i): int => $i * $i, $arr));

Output
Performance
VLD
References
Branches

array_map: documentation ( source)
print_r: documentation ( source)

preferences:dark modelive previewkey bindings

21.89 ms | 475 KiB | 4 Q