<?php

$var = array();
$var = array();
$var = array(1,2,3);
$var = array(1,2,3);
echo $var[1];
$foo = array($var[1],$var[2]);
$foo = array(
        1,
        array(2),
        3
       );

// Short list, not short array.
[$a, [$b]] = $array;

// Short array in short list. Short list should be left untouched, short array should be fixed.
['key' => $a, array('key') => $b] = $array;