What are the potential pitfalls of initializing arrays in different PHP versions (e.g., using $array = array() in PHP 5.3 versus $array = [] in PHP 5.5)?

When initializing arrays in PHP, using $array = [] is considered a more modern and concise way compared to $array = array(). However, using $array = [] may not be compatible with older versions of PHP (before 5.4). To ensure compatibility across different PHP versions, it's recommended to use $array = array() for initializing arrays.

// Use array() for initializing arrays to ensure compatibility with older PHP versions
$array = array();