edible = $edible; $this->color = $color; } function is_edible() { return $this->edible; } function what_color() { return $this->color; } } // end of class Vegetable // extends the base class class Spinach extends Vegetable { var $cooked = false; function Spinach() { parent::__construct(true, "green"); } function cook_it() { $this->cooked = true; } function is_cooked() { return $this->cooked; } } // end of class Spinach ?> DATA; $class_regex = '~ ^\s*class\s+ (?P\S+)[^{}]+(\{ (?:[^{}]*|(?2))* \})~mx'; $data = preg_replace_callback($class_regex, function($match) { $function_regex = '~function\s+\K'.$match['class'].'~'; return preg_replace($function_regex, '__construct', $match[0]); }, $data); echo $data; ?>