It would be better if we can assign return value of function to property.
If not at least we should generate a nice error message.
Currently when we try to assign return value of function to property we get
the following error:
Parse error: syntax error, unexpected '(', expecting ',' or ';' in
index.php on line 4
We should replace this error with the following error:
Fatal error: You must assign a static value to property in index.php on
line 4.
OR
Fatal error: Dynamic values cannot be assigned to property in index.php on
line 4.
