CakePHP Form Handling
CakePHP provides various in built tags to handle HTML forms easily and securely. Like many other PHP frameworks, major elements of HTML are also generated using CakePHP. Following are the various functions used to generate HTML elements.
The following functions are used to generate select options −
| Syntax | _selectOptions( array $elementsarray(), array $parentsarray(), boolean $showParentsnull, array $attributesarray() ) | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Parameters |
|
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| Returns | array | ||||||||||||||||
| Description | Returns an array of formatted OPTION/OPTGROUP elements |
The following functions are used to generate HTML select element.
| Syntax | select( string $fieldName, array $options array(), array $attributes array() ) | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Parameters |
Array of the OPTION elements (as 'value'=>'Text' pairs) to be used in the SELECT element. |
||||||||
| Returns | Formatted SELECT element. | ||||||||
| Description | Returns a formatted SELECT element. |
| Syntax | Checkbox(string $fieldName, array $optionsarray() ) |
|---|---|
| Parameters |
|
| Returns | An HTML text input element. |
| Description | Creates a checkbox input widget. |
| Syntax | Button(string $title, array $optionsarray() ) | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Parameters |
|
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| Returns | HTML button tag. | ||||||||
| Description |
Creates a tag. The type attribute defaults to type="submit". You can change it to a different value by using
|
| Syntax | Checkbox(string $fieldName, array $optionsarray() ) |
|---|---|
| Parameters |
|
| Returns | An HTML text input element. |
| Description | Creates a checkbox input widget. |
| Syntax | create( mixed $modelnull , array $optionsarray() ) |
|---|---|
| Parameters |
|
| Returns | A formatted opening FORM tag. |
| Description | Returns an HTML FORM element. |
| Syntax | file(string $fieldName, array $optionsarray() ) |
|---|---|
| Parameters |
|
| Returns | A generated file input. |
| Description | Creates file input widget. |
The following functions are used to create hidden element on HTML page.
| Syntax |
|
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|---|---|---|---|---|---|---|---|---|---|
| Parameters |
|
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| Returns | A generated hidden input
|
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| Description | Creates a hidden input field |
| Syntax | Radio(string $fieldName , array $optionsarray() , array $attributesarray() ) |
|---|---|
| Parameters |
|
| Returns | Completed radio widget set |
| Description | Creates a set of radio widgets. Will create a legend and fieldset by default. Use $options to control this. |
| Syntax | Input(string $fieldName , array $options array() ) |
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|---|---|---|---|---|---|---|---|---|---|
| Parameters |
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| Returns | Completed form widget | ||||||||
| Description | Generates a form input element complete with label and wrapper div |
| Syntax | Textarea(string $fieldName , array $options array() ) |
|---|---|
| Parameters |
|
| Returns | A generated HTML text input element |
| Description | Creates a textarea widget |
| Syntax | Radio(string $fieldName , array $optionsarray() , array $attributesarray() ) |
|---|---|
| Parameters |
|
| Returns | Completed radio widget set |
| Description | Creates a set of radio widgets. Will create a legend and fieldset by default. Use $options to control this. |
<?php use Cake\Http\Middleware\CsrfProtectionMiddleware;
use Cake\Routing\Route\DashedRoute;
use Cake\Routing\RouteBuilder;
$routes->setRouteClass(DashedRoute::class);
$routes->scope('/', function (RouteBuilder $builder) {
$builder->registerMiddleware('csrf', new CsrfProtectionMiddleware([
'httpOnly' => true,
]));
$builder->applyMiddleware('csrf');
//$builder->connect('/pages',['controller'=>'Pages','action'=>'display', 'home']);
$builder->connect('register',['controller'=>'Registrations','action'=>'index']);
$builder->fallbacks();
});
The following functions are used to generate submit button on HTML page.
| Syntax | Submit(string $caption null, array $options array() ) |
|---|---|
| Parameters |
|
| Returns | An HTML submit button |
| Description | Creates a submit button element. This method will generate elements that can be used to submit, and reset forms by using $options. Image submits can be created by supplying an image path for $caption. |
<?php namespace App\Controller;
use App\Controller\AppController;
class RegistrationsController extends AppController{
public function index(){
$country = array('India','United State of America','United Kingdom');
$this->set('country',$country);
$gender = array('Male','Female');
$this->set('gender',$gender);
}
}
?>
The following functions are used to generate textarea element on HTML page.
Syntax
Textarea(string $fieldName , array $options array() )
Parameters
Returns
A generated HTML text input element
Description
Creates a textarea widget
Example
Make changes in the
<?php echo $this->Form->create(NULL,array('url'=>'/register'));
echo '<label for="country">Country</label>';
echo $this->Form->select('country',$country);
echo '<label for="gender">Gender</label>';
echo $this->Form->radio('gender ',$gender);
echo '<label for="address">Address</label>';
echo $this->Form->textarea('address');
echo $this->Form->file('profilepic');
echo '<div>'.$this->Form->checkbox('terms').
'<label for="country">Terms ∓ CakePHP Form Handlings</label>
</div>';
echo $this->Form->button('Submit');
echo $this->Form->end();
?>
config/routes.phpfile as shown in the following code.
config/routes.phpCreate a
RegistrationsController.php file at
src/Controller/RegistrationsController.php. Copy the following code in the controller file.
src/Controller/RegistrationsController.php
Create a directory Registrations at src/Template and under that directory, create a View file called index.php. Copy the following code in that file.
src/Template/Registrations/index.php
Execute the above example by visiting the following URL −
http://localhost/cakephp4/register
Output
Upon execution, you will receive the following output.
The above is the detailed content of CakePHP Form Handling. For more information, please follow other related articles on the PHP Chinese website!
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