OOP for a PHP Newbie

Originally Posted by Haris How do you get conditional statements between classes(functions)? Example: PHP Code:     public function oneYearPasses(){         $TheHeight = $this->_Height++;         $return_val = 'The '.$this->_Type.' Tree grows to '.$TheHeight.' meter <br/>';         return $return_val;                  if($TheHeight == 10){             $return_val = '<b>Your Tree is now mature and grows 10 fruits</b>';             return $return_val;             $this->_Fruit = 10;         }     }  The if statement doesn't return the value when reaches to 10 meters.

This is because you arent calling the variables correctly, its $this->variable, not $this->_variable

edit:
Plus the if statement will never be executed because
is not in a conditional statement, therefore no code below it will run.

Originally Posted by Village Idiot This is because you arent calling the variables correctly, its $this->variable, not $this->_variable edit: Plus the if statement will never be executed because PHP Code:         return $return_val;  is not in a conditional statement, therefore no code below it will run.

Thanks Village.