Why can't you use operators in array values inside a class?

[franceslaser]

Try this:\[code\]$test = array (2+2);var_dump($test);\[/code\]Then try the same but inside a class:\[code\]class test { public $test = array(2+2);}\[/code\]I just want to know why one gets a parser error and maybe how to solve this (in a class) as code-friendly and performant as possible.