Standalone Form for PHP
The minimal stuff you need to create and validate your form. If you want to use a powerful validation and filtering use something like [Aura.Filter][] or your favourite component that does it. You can see how you can do it in the example in master branch.
The composer.json file
{
"require": {
"aura/input": ">=1.0.0, <=2.0.0",
"aura/html": "2.0.*"
}
}The page which you need to bring the form.
use Aura\Input\Builder;
use Aura\Input\Filter;
use Aura\Input\Form;
use Aura\Html\HelperLocatorFactory;
$loader = require dirname(__DIR__) . '/vendor/autoload.php';Creating your Form class
To create your form extend the class with Aura\Input\Form . Here is an example of contact form with fields name, email, url and message in it.
class ContactForm extends Form
{
public function init()
{
$this->setField('name')
->setAttribs([
'id' => 'contact[name]',
'name' => 'contact[name]',
'size' => 20,
'maxlength' => 20,
]);
$this->setField('email')
->setAttribs([
'id' => 'contact[email]',
'name' => 'contact[email]',
'size' => 20,
'maxlength' => 20,
]);
$this->setField('url')
->setAttribs([
'id' => 'contact[url]',
'name' => 'contact[url]',
'size' => 20,
'maxlength' => 20,
]);
$this->setField('message', 'textarea')
->setAttribs([
'id' => 'contact[message]',
'name' => 'contact[message]',
'cols' => 40,
'rows' => 5,
]);
$this->setField('submit', 'submit')
->setAttribs(['value' => 'send']);
$filter = $this->getFilter();
$filter->setRule(
'name',
'Name must be alphabetic only.',
function ($value) {
return ctype_alpha($value);
}
);
$filter->setRule(
'email',
'Enter a valid email address',
function ($value) {
return filter_var($value, FILTER_VALIDATE_EMAIL);
}
);
$filter->setRule(
'url',
'Enter a valid url',
function ($value) {
return filter_var($value, FILTER_VALIDATE_URL);
}
);
$filter->setRule(
'message',
'Message should be more than 7 characters',
function ($value) {
if (strlen($value) > 7) {
return true;
}
return false;
}
);
}
}Now create the object of Form passing the Aura\Input\Builder object and
object of type Aura\Input\FilterInterface.
As we are using the base filter of Aura.Input pass Aura\Input\Filter.
$form = new ContactForm(new Builder(), new Filter());
if (isset($_POST['submit']) && $_POST['submit'] == 'send') {
$data = $_POST['contact'];
$form->fill($data);
if ($form->filter()) {
echo "Yes successfully validated and filtered";
var_dump($data);
exit;
}
}
$factory = new HelperLocatorFactory();
$helper = $factory->newInstance();
function showFieldErrors($form, $name) {
$errors = $form->getMessages($name);
$str = '';
if ($errors) {
$str .= '<ul>';
foreach ($errors as $error) {
$str .= '<li>' . $error . '</li>';
}
$str .= '</ul>';
}
return $str;
}
?>
<html>
<head>
<title>Aura Form, to make it standalone</title>
</head>
<body>
<form method="post" action="" enctype="multipart/form-data" >
<table cellpadding="0" cellspacing="0">
<tr>
<td>Name : </td>
<td>
<?php
echo $helper->input($form->get('name'));
echo showFieldErrors($form, 'name');
?>
</td>
</tr>
<tr>
<td>Email : </td>
<td>
<?php
echo $helper->input($form->get('email'));
echo showFieldErrors($form, 'email');
?>
</td>
</tr>
<tr>
<td>Url : </td>
<td>
<?php
echo $helper->input($form->get('url'));
echo showFieldErrors($form, 'url');
?>
</td>
</tr>
<tr>
<td>Message : </td>
<td>
<?php
echo $helper->input($form->get('message'));
echo showFieldErrors($form, 'message');
?>
</td>
</tr>
<tr>
<td colspan="2">
<?php
echo $helper->input($form->get('submit'));
?>
</td>
</tr>
</table>
</form>
</body>
</html>