PHP数组语法：array（...）或[...] [closed]

Question

In PHP, are these identical? $x = [1,2,3]; and $x = array(1,2,3);

Are there cases where these two methods of creating an array differ?

Is there any reason to use one over the other?

Answer 1

They are identical with the caveat that $x = [1,2,3]; requires PHP >= 5.4.0.