<?php 
 
// simple 
$a = []; 
 
// next line 
$b = []; 
 
// no spaces 
$c = [1, 2, 3]; 
 
// extra spaces 
$d = [1, 2, 3]; 
 
// dereferenced call 
$e = [1, 2, 3][2]; 
 
// passed as param in function 
$f = functionCall([1, 2, 3], [4]); 
 
// simply somewhere 
[1, 2, 3345]; 
 
// nested 
[[1, 2, 3], [4, 5, 6]]; 
 
if (true) { 
    [123, 456]; 
} 
[345]; 
 
array('a', [234, 345345, 8837673, 789], 'b'); 
 
array('a', [func() ? ['b'] : ['c']]); 
 
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