Description:
------------
it seems that the exception message must not contain the hex 0 character like "\x00" i.e. message is truncated at first occurence of hex 0 

Reproduce code:
---------------
try {
    $msg = "Some error \x13 \x01 \xff \x00 message";
    throw new Exception($msg);
} catch(Exception $e) {
    echo '<pre>';
    echo $e->getMessage()."\n";
    echo $msg;
    echo '</pre>';
}


Expected result:
----------------
Some error  
 ? &#65533; message
Some error  
 ? &#65533; message

Actual result:
--------------
Some error  
 ? 
Some error  
 ? &#65533; message