<?php
$var = array();
$var = [1,2,3];
$var = array(1,2,3);
echo $var[1];
$foo = array($var[1],$var[2]);
$foo = array(
1,
2,
3
);
$var = array/*comment*/(1,2,3);
$var = array;
function foo(array $array) {}
$a = function (array $array) use ($foo): array {};
abstract function foo(): array;
abstract function foo(): Foo\Bar;
abstract function foo(): \Foo\Bar;
array_map(
static fn (array $value): array => array_filter($value),
[]
);