PHP StringUtils::whitespaceOnly方法代码示例

 /**
  * View for registering a new user.
  * If a user is successfully registered, they are redirected to the home page.
  */
 public function renderRegisterUser()
 {
     // POST keys
     $submit_key = 'submit';
     $username_key = 'username';
     $password_key = 'password';
     $email_address_key = 'email_address';
     $description_key = 'description';
     // Form inputs
     $form_username = empty($_POST[$username_key]) ? null : StringUtils::sanitize($_POST[$username_key]);
     $form_password = empty($_POST[$password_key]) ? null : StringUtils::sanitize($_POST[$password_key]);
     $form_email_address = empty($_POST[$email_address_key]) ? null : StringUtils::sanitize($_POST[$email_address_key]);
     $form_description = empty($_POST[$description_key]) ? null : StringUtils::sanitize($_POST[$description_key]);
     $form_submit = isset($_POST[$submit_key]);
     $errors_found = false;
     // View Config
     $view_data['page_title'] = 'Register';
     // Fill in view data
     if ($form_username !== null) {
         $view_data['username'] = $form_username;
     }
     if ($form_password !== null) {
         $view_data['password'] = $form_password;
     }
     if ($form_email_address !== null) {
         $view_data['email_address'] = $form_email_address;
     }
     if ($form_description !== null) {
         $view_data['description'] = $form_description;
     }
     // Check form was submitted
     if ($form_submit) {
         // Check user name is set
         if ($form_username === null || StringUtils::whitespaceOnly($form_username)) {
             $view_data['err_username'] = "Please enter a user name.";
             $errors_found = true;
         } elseif (strlen($form_username) > 100) {
             $view_data['err_username'] = "Please enter a user name that is no greater than 100 characters.";
             $errors_found = true;
         }
         // Check password is set
         if ($form_password === null || StringUtils::whitespaceOnly($form_password)) {
             $view_data['err_password'] = "Please enter a password.";
             $errors_found = true;
         }
         // Check email address is set
         if ($form_email_address === null || StringUtils::whitespaceOnly($form_email_address)) {
             $view_data['err_email_address'] = "Please enter an email address.";
             $errors_found = true;
         } elseif (!filter_var($form_email_address, FILTER_VALIDATE_EMAIL)) {
             $view_data['err_email_address'] = "Please enter a valid email address.";
             $errors_found = true;
         }
         // Check description is set
         if ($form_description === null || StringUtils::whitespaceOnly($form_description)) {
             $view_data['err_description'] = "Please enter a brief description.";
             $errors_found = true;
         }
         // Form was submitted without errors
         if (!$errors_found) {
             // Check if user with given username already exists
             if ($this->data->getUserByUserName($form_username) !== null) {
                 $view_data['err_username'] = "User with this username already exists. Please enter another one.";
                 $errors_found = true;
             } else {
                 // Add user to database
                 $new_user = new User($form_username, $form_email_address, $form_description);
                 $new_user->setPassword($form_password);
                 $new_user_id = $this->data->addUser($new_user);
                 // Login user if they were successfully added
                 if ($new_user_id) {
                     $_SESSION['user_id'] = $new_user_id;
                     HTTPUtils::my_http_redirect('index.php');
                 } else {
                     $view_data['form_err'] = "Failed to add new user. Please try again.";
                 }
             }
         }
         if ($errors_found) {
             $view_data['form_err'] = "Please see errors below.";
         }
     }
     $this->renderTemplate('templates/header.php', $view_data);
     $this->renderTemplate('templates/register_view.php', $view_data);
     $this->renderTemplate('templates/footer.php', $view_data);
 }

 /**
  * View for registering a new user.
  * If a user is successfully registered, they are redirected to the home page.
  */
 public function renderRegisterUser()
 {
     // POST keys
     $submit_key = 'submit';
     $username_key = 'username';
     $password_key = 'password';
     $email_address_key = 'email_address';
     $description_key = 'description';
     // Form inputs
     $username = null;
     $password = null;
     $email_address = null;
     $description = null;
     $errors_found = false;
     // View Config
     $view_data['page_title'] = 'Register';
     $view_data['js'] = '<script src="js/register.js"></script>';
     // Fill in view data
     if (isset($_POST[$username_key])) {
         $view_data['username'] = $_POST[$username_key];
     }
     if (isset($_POST[$password_key])) {
         $view_data['password'] = $_POST[$password_key];
     }
     if (isset($_POST[$email_address_key])) {
         $view_data['email_address'] = $_POST[$email_address_key];
     }
     if (isset($_POST[$description_key])) {
         $view_data['description'] = $_POST[$description_key];
     }
     // Check form was submitted
     if (isset($_POST[$submit_key])) {
         // Check user name is set
         if (empty($_POST[$username_key]) || StringUtils::whitespaceOnly($_POST[$username_key])) {
             $view_data['err_username'] = "Please enter a user name.";
             $errors_found = true;
         } else {
             // Sanitize the user name
             $username = StringUtils::sanitize($_POST[$username_key]);
             // Check user name meets length requirements
             if (strlen($username) > 100) {
                 $view_data['err_username'] = "Please enter a user name that is no greater than 100 characters.";
                 $errors_found = true;
             }
         }
         // Check password is set
         if (empty($_POST[$password_key]) || StringUtils::whitespaceOnly($_POST[$password_key])) {
             $view_data['err_password'] = "Please enter a password.";
             $errors_found = true;
         } else {
             $password = StringUtils::sanitize($_POST[$password_key]);
         }
         // Check email address is set
         if (empty($_POST[$email_address_key]) || StringUtils::whitespaceOnly($_POST[$email_address_key])) {
             $view_data['err_email_address'] = "Please enter an email address.";
             $errors_found = true;
         } else {
             // Sanitize the email address
             $email_address = StringUtils::sanitize($_POST[$email_address_key]);
             // TODO: Check email address follows the right pattern
         }
         // Check description is set
         if (empty($_POST[$description_key]) || StringUtils::whitespaceOnly($_POST[$description_key])) {
             $view_data['err_description'] = "Please enter a brief description.";
             $errors_found = true;
         } else {
             // Sanitize the description
             $description = StringUtils::sanitize($_POST[$description_key]);
         }
         if ($errors_found) {
             $view_data['form_err'] = "Please see errors below.";
         } else {
             // Check if user with given username already exists
             if (!is_null($this->data->getUserByUserName($username))) {
                 $view_data['err_username'] = "User with this username already exists. Please enter another one.";
             } else {
                 // Add user to database
                 $new_user = new User($username, $email_address, $description);
                 $new_user->setPassword($password);
                 $new_user_id = $this->data->addUser($new_user);
                 // Login user if they were successfully added
                 if ($new_user_id) {
                     $_SESSION['user_id'] = $new_user_id;
                     HTTPUtils::my_http_redirect('index.php');
                 } else {
                     $view_data['form_err'] = "Failed to add new user. Please try again.";
                 }
             }
         }
     }
     $this->renderTemplate('templates/header.php', $view_data);
     $this->renderTemplate('templates/register_view.php', $view_data);
     $this->renderTemplate('templates/footer.php', $view_data);
 }

 /**
  * Create/Edit a pet
  *
  * @param      $view_data
  * @param bool $create whether a pet is being created or edited
  *
  * @return mixed
  */
 private function editPet($view_data, $create = false)
 {
     // POST keys
     $submit_key = 'submit';
     $name_key = 'name';
     $species_id_key = 'species_id';
     $pet_id_key = 'pet_id';
     $errors_found = false;
     // Gather sanitized form inputs
     $form_name = empty($_POST[$name_key]) ? null : StringUtils::sanitize($_POST[$name_key]);
     $form_species_id = empty($_POST[$species_id_key]) ? null : intval(StringUtils::sanitize($_POST[$species_id_key]));
     $form_submit = isset($_POST[$submit_key]);
     // Other data
     $species = null;
     // View config
     $view_data['species_list'] = $this->species_list;
     // Pet is being created
     if ($create) {
         // Fill in view data
         if ($form_name !== null) {
             $view_data[$name_key] = $form_name;
         }
         if ($form_species_id !== null) {
             $view_data[$species_id_key] = $form_species_id;
         }
     } else {
         // Set the flag that this pet is being edited
         // Species should not be modifiable
         $view_data['edit_mode'] = true;
         // Fill in view data
         $view_data[$pet_id_key] = $this->pet_to_edit->getId();
         $view_data[$name_key] = $form_name === null ? $this->pet_to_edit->getName() : $form_name;
         $view_data[$species_id_key] = $this->pet_to_edit->getSpecies()->getId();
     }
     // Check form was submitted without error
     if ($form_submit) {
         // Check name is set
         if ($form_name === null || StringUtils::whitespaceOnly($form_name)) {
             $view_data['err_name'] = "Please enter a name.";
             $errors_found = true;
         } elseif (strlen($form_name) > 64) {
             $view_data['err_name'] = "Please enter a name that is no greater than 64 characters.";
             $errors_found = true;
         }
         // Check species_id is set
         // Only using in create mode
         if ($create && $form_species_id === 0) {
             $view_data['err_species'] = "Please select a species.";
             $errors_found = true;
         } elseif ($create) {
             $species = $this->data->getSpecies($form_species_id);
             if ($species === null) {
                 $view_data['err_species'] = "Could not find species. Please try again.";
                 $errors_found = true;
             }
         }
         if ($errors_found) {
             $view_data['form_err'] = "Please see errors below.";
         } else {
             // Check if a pet is being created
             if ($create) {
                 $new_pet = new Pet($this->logged_in_user, $species, $form_name);
                 // Generate initial stats
                 $new_pet->rollStats();
                 // Make pet active if user does not have a full active set
                 $active_pets = $this->data->getActivePetsForUser($this->logged_in_user->getId());
                 if (count($active_pets) < 3) {
                     $new_pet->setActive(true);
                 }
                 // Add pet to database
                 $new_pet_id = $this->data->addPet($new_pet);
                 // Redirect to view pet if added successfully
                 if ($new_pet_id) {
                     HTTPUtils::my_http_redirect('pet.php?pet_id=' . $new_pet_id);
                 } else {
                     $view_data['form_err'] = 'Failed to add pet. Please try again.';
                 }
             } else {
                 // Update pet fields
                 // Species cannot be modified
                 $this->pet_to_edit->setName($form_name);
                 // Update pet in database
                 $updated = $this->data->updatePet($this->pet_to_edit);
                 // Redirect to view pet if updated successfully
                 if ($updated) {
                     HTTPUtils::my_http_redirect('pet.php?pet_id=' . $this->pet_to_edit->getId());
                 } else {
                     $view_data['form_err'] = 'Failed to update pet. Please try again.';
                 }
             }
         }
     }
//.........这里部分代码省略.........