Added check for error string found in PHP5.4RC7

    davem@wes:~$ php -v
    PHP 5.4.0RC7 (cli) (built: Feb 14 2012 23:15:24) 
    Copyright (c) 1997-2012 The PHP Group
    Zend Engine v2.4.0, Copyright (c) 1998-2012 Zend Technologies
    davem@wes:~$ php -r "return; class Dave {"

    Parse error: syntax error, unexpected end of file, expecting function (T_FUNCTION) in Command line code on line 1
    davem@wes:~$