Description:
------------
when extends father class,which declared one contruction function with params, then you extend this class and declare one another contruction function in it(not same the params list as his father class). Run it, you will find something unexcepted output. You can check the code belowed.




Reproduce code:
---------------
abstract class father{
    function father($a){
        echo "class father";
    }
}

class child extends father{
    function child(){
        echo "test";
    }
}

//run
$obj = new child('a');

Expected result:
----------------
no error,no output.

Actual result:
--------------
return wrong message: can't redeclare contraction function!