Fortem

A collection of form templates for PHP with full support for alpinejs properties.

<div>
  <?= $form->label('Name')->asRequired() ?>
  <?= $form->input('name')->asModel() ?>
</div>
<div>
  <?= $form->label('Description')->asRequired() ?>
  <?= $form->input('detail')->asModel() ?>
</div>
<div>
  <?= $form->button('Update')->onClick('update(id)') ?>
</div>

Installation

Install the package using Composer:

$ composer require rougin/fortem

Basic usage

Note

All elements below use Bootstrap classes by default. Use the noStyling method to opt out, or see Restyling elements to apply a custom CSS framework.

The FormHelper class provides an interface for creating labels, inputs, buttons, select dropdowns, and error messages:

// index.php

use Rougin\Fortem\Helpers\FormHelper;

$form = new FormHelper;

echo $form->label('Name');

<label class="form-label">Name</label>

Note

See the next sections for the documentation of the abovementioned elements.

The LinkHelper class helps in generating and checking URLs to the template:

use Rougin\Fortem\Helpers\LinkHelper;

$server = array();
$server['HTTP_HOST'] = 'localhost';
$server['REQUEST_URI'] = '/';

$link = new LinkHelper($server);

echo $link; // http://localhost/

Use the isActive method to check if a given link is the current URL:

$current = $link->isActive('/'); // true

If HTTP_HOST is not available, the setBase method can be used:

use Rougin\Fortem\Helpers\LinkHelper;

$data = /** instaceof $_SERVER */;

$link = new LinkHelper($data);

$link->setBase('roug.in')

echo $link; // http://roug.in/

Labels

To create a <label> element, the label method is used:

echo $form->label('Name');

<label class="form-label">Name</label>

Additional CSS classes can be appended using withClass:

echo $form->label('Name')->withClass('text-uppercase');

<label class="form-label text-uppercase">Name</label>

To remove the default styling, use the noStyling method:

echo $form->label('Name')->noStyling();

<label>Name</label>

A label can also be marked as required, which adds a red asterisk:

echo $form->label('Name')->asRequired();

<label class="form-label">Name <span class="text-danger">*</span></label>

Inputs

To create an <input> element, the input method is used. By default, it creates a text input:

echo $form->input('name');

<input type="text" name="name" class="form-control">

Additional CSS classes can be appended using withClass:

echo $form->input('name')->withClass('is-invalid');

<input type="text" name="name" class="form-control is-invalid">

The input type can be changed using the withType method or the convenient asEmail and asNumber methods:

echo $form->input('email')->asEmail();

<input type="email" name="email" class="form-control">

echo $form->input('age')->asNumber();

<input type="number" name="age" class="form-control">

Buttons

To create a <button> element, the button method is used:

echo $form->button('Submit');

<button type="button" class="btn">Submit</button>

Additional CSS classes can be appended using withClass:

echo $form->button('Submit')->withClass('btn-primary');

<button type="button" class="btn btn-primary">Submit</button>

The button type can be changed using the withType method:

echo $form->button('Submit')->withType('submit');

<button type="submit" class="btn">Submit</button>

Select dropdowns

To create a <select> element, the select method is used:

$items = array('Male', 'Female');

echo $form->select('gender', $items);

<select name="gender" class="form-select">
  <option value="">Please select</option>
  <option value="0">Male</option>
  <option value="1">Female</option>
</select>

An associative array with id and name keys can also be provided:

$items = [ array('id' => 'm', 'name' => 'Male') ];
$items[] = array('id' => 'f', 'name' => 'Female');

echo $form->select('gender', $items);

<select name="gender">
  <option value="">Please select</option>
  <option value="m">Male</option>
  <option value="f">Female</option>
</select>

Error messages

The error method is used to create a placeholder for validation error messages:

echo $form->error('error.name');

<template x-if="error.name">
  <p class="text-danger small mb-0" x-text="error.name[0]"></p>
</template>

Note

This is only works when integrated in alpinejs.

Using alpinejs

Fortem provides methods for seamless integration with alpinejs.

For Input and Select classes, the asModel method adds an x-model attribute to the element, binding its value to its variable:

echo $form->input('name')->asModel();

<input type="text" name="name" x-model="name">

echo $form->select('gender', $items)->asModel();

<select name="gender" x-model="gender">...</select>

In all elements, the disablesOn method adds the :disabled attribute, allowing an element to be disabled based on its condition:

echo $form->input('name')->disablesOn('loading');

<input type="text" name="name" :disabled="loading">

For the Button class, the onClick method adds the @click attribute to a button, executing its function on click:

echo $form->button('Submit')->onClick('submitForm');

<button type="button" @click="submitForm">Submit</button>

Scripts

The script method helps create a JavaScript object from PHP which is useful for initializing data for alpinejs:

echo $form->script('data')
  ->with('name', 'John Doe')
  ->with('age', 30)
  ->withLoading()
  ->withError();

<script>
  let data = {"name":"John Doe","age":30,"loading":false,"error":{}};
</script>

Restyling elements

The default styling uses Bootstrap 5 classes. To use a different CSS framework, implement the StyleInterface and pass it to the form helper:

namespace Rougin\Test\Styles;

use Rougin\Fortem\StyleInterface;

class TailwindStyle implements StyleInterface
{
    public function button()
    {
        return 'rounded-md bg-indigo-600 px-3 py-2 text-sm font-semibold text-white shadow-sm hover:bg-indigo-500';
    }

    public function error()
    {
        return 'mt-1 text-sm text-red-600';
    }

    public function input()
    {
        return 'block w-full rounded-md border-0 py-1.5 text-gray-900 shadow-sm ring-1 ring-inset ring-gray-300 placeholder:text-gray-400 sm:text-sm';
    }

    public function label()
    {
        return 'block text-sm font-medium leading-6 text-gray-900';
    }

    public function required()
    {
        return 'text-red-500';
    }

    public function select()
    {
        return 'block w-full rounded-md border-0 py-1.5 text-gray-900 shadow-sm ring-1 ring-inset ring-gray-300 sm:text-sm';
    }
}

use Rougin\Fortem\Helpers\FormHelper;
use Rougin\Test\Styles\TailwindStyle;

$form = new FormHelper;

// Apply the custom style to all elements ---
$form->useStyling(new TailwindStyle);
// ------------------------------------------

// All elements now use the custom style ---
$form->label('Name')->asRequired();
$form->input('name');
$form->button('Submit')->withClass('btn-primary');
$form->select('gender', array('Male', 'Female'));
$form->error('error.name');
// -----------------------------------------

// Opt out the default styling per element ---
$form->input('name')->noStyling();
// -------------------------------------------

Changelog

Please see CHANGELOG for recent changes and latest updates.

Contributing

See CONTRIBUTING on how to contribute to the project.

License

The MIT License (MIT). Please see LICENSE for more information.