note 60179 added to language.oop5.abstract

Variable-length argument lists in abstract methods will generate fatal error if derived. Here is an simple example: <?php // common wrap for all validators is forcing uniform interface abstract class ValidatorWrap { // just example why variable-length arguments are needed public function __construct() { if (func_num_args() > 0) { $arg_list = func_get_args(); call_user_func_array(array(&$this, 'setupValidator'), $arg_list); } else { $this->setupValidator(); } // continue with construction } // amount of arguments is specific to validator implementation abstract public function setupValidator(); // known interface abstract public function validate($value); } class Validator1 extends ValidatorWrap { protected $pattern = ''; // this will generate PHP Fatal error because $pattern is not expected public function setupValidator($pattern) { $this->pattern = $pattern; } // this will do OK public function validate($value) { return preg_match($this->pattern, $value); } } // make numeric validator $validator = new Validator1('/^\d+$/'); echo (int) $validator->validate($_REQUEST['digits']); ?> I need it to work so I just redefine troublemaking function as follows: <?php public function setupValidator() { } ?> This will give me functionality I need and generates only PHP Strict Standards warning. ---- Manual Page -- http://www.php.net/manual/en/language.oop5.abstract.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+60179 Delete: added to the manual -- http://master.php.net/manage/user-notes.php?action=delete+60179&report=yes&reason=added+to+the+manual Delete: bad code -- http://master.php.net/manage/user-notes.php?action=delete+60179&report=yes&reason=bad+code Delete: spam -- http://master.php.net/manage/user-notes.php?action=delete+60179&report=yes&reason=spam Delete: useless -- http://master.php.net/manage/user-notes.php?action=delete+60179&report=yes&reason=useless Delete: non-english -- http://master.php.net/manage/user-notes.php?action=delete+60179&report=yes&reason=non-english Delete: already in docs -- http://master.php.net/manage/user-notes.php?action=delete+60179&report=yes&reason=already+in+docs Delete: other reasons -- http://master.php.net/manage/user-notes.php?action=delete+60179&report=yes Reject -- http://master.php.net/manage/user-notes.php?action=reject+60179&report=yes Search -- http://master.php.net/manage/user-notes.php