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<?php class UserModel { public $name = null, $occupation = null, $email = null, $oldname = null, $oldoccupation = null, $oldemail = null, $me, $handler, $result; public function __construct(){ } public function create($fields = array()){ if(count($fields) == 3){ $this->name = $fields['name']; $this->occupation = $fields['occupation']; $this->email = $fields['email']; } } public function _save(){ if($this->oldname == null && $this->oldoccupation == null && $this->oldemail == null){ $sql = "INSERT INTO users (name, occupation, email) VALUES ('".$this->name."', '".$this->occupation."', '".$this->email."')"; /*$this->result = $this->handler->prepare($sql); /$this->result->execute(array( ':name'=>$this->name, ':occupation'=>$this->occupation, ':email'=>$this->email ));*/ echo $sql; } else { $sql = "UPDATE users SET name = '".$this->name."', occupation = '".$this->occupation."', email = '".$this->email."' WHERE name = '".$this->oldname."'"; /*$this->result = $this->handler->prepare($sql); $this->result->execute(array( ':name'=>$this->name, ':occupation'=>$this->occupation, ':email'=>$this->email, ':oldname'=>$this->oldname ));*/ echo $sql; } } public function name($given_name = null) { if($this->name == null){ if($given_name != null){ $this->name = $given_name; } } else { if($given_name != null){ $this->oldname = $this->name; $this->name = $given_name; } } return $this->name; } public function occupation($given_occupation = null) { if($this->occupation == null){ if($given_occupation != null){ $this->occupation = $given_occupation; } } else { if($given_occupation != null){ $this->oldoccupation = $this->occupation; $this->occupation = $given_occupation; } } return $this->occupation; } public function email($given_email = null){ $this->verifyEmail($given_email); if($given_email != null){ // $this->oldemail = $this->email; // THIS LINE IS THE ISSUE $this->email = $given_email; } return $this->email; } public function verifyEmail($givenemail = null){ if($givenemail == null){ $email = $this->email; } else { $email = $givenemail; } if (!filter_var($email, FILTER_VALIDATE_EMAIL)) { throw new Exception('Email not valid.'); die(); } } } $user = new UserModel(); $user->create(array( 'name' => 'Luke', 'occupation' => 'Programmer', 'email' => 'luke@gmail.com' )); $user->_save(); // $user->name('Jack'); // $user->occupation(); try { $user->email('demo@example.co.za'); } catch (Exception $e) { echo $e->getMessage(); } $user->_save();