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Version: Fegg 5.x (next)

Introduction

Providing some functions for validation

How to use​

Import Fegg\Validation and create it with new. Call a check method for each field, then read the result with Validation::getErrorMessage.

Controller
<?php
namespace Site\Controller;

defined('FEGG_CORE_DIR') || exit;

use Fegg\Validation;

class Contact extends Controller
{
    public function confirm()
    {
        $validation = new Validation();

        $id   = 'name';
        $name = 'お名前';
        $validation->required($id, $this->in($id), array('@required', $name));
        $validation->maxlength($id, $this->in($id), 50, array('@maxlength', $name, 50));

        $id   = 'mail';
        $name = 'メールアドレス';
        $validation->required($id, $this->in($id), array('@required', $name));
        $validation->email($id, $this->in($id), array('@email', $name));

        $errorMessage = $validation->getErrorMessage();
        if (!$errorMessage) {
            $this->displayPage('contact/confirm');
        } else {
            $this->page['error'] = $errorMessage;
            $this->displayPage('contact/input');
        }
    }
}

How checks work​

  • Every check method takes the field name $name first. It is the key of the error message returned by Validation::getErrorMessage.
  • Only the first error of each field is kept: once a field has an error, the next checks of the same field are skipped and return false. Write the checks in order of priority (e.g. required before email).
  • Except Validation::required and Validation::upload, the checks do not check an empty value (they return true). Use required for required fields.
  • $code decides the error message, see Configuration.

Methods​