|
1 | | -# forms |
| 1 | +# MintyPHP Forms |
| 2 | + |
| 3 | +MintyPHP Forms is a powerful PHP form builder that enables you to create and validate forms without having to write a lot of boiler plate code. |
| 4 | + |
| 5 | +## Features |
| 6 | + |
| 7 | +- Bulma renderer, easily creating good looking forms |
| 8 | +- Validation rules, such as validating email, string length and numeric comparisons |
| 9 | +- Support checkbox arrays and multi selects |
| 10 | +- Best practices: follows best practices, well-tested, object oriented code |
| 11 | +- Extensible: create support for your favorite framework or form rendering style |
| 12 | + |
| 13 | +## Installation |
| 14 | + |
| 15 | +Run the following command to install MintyPHP Forms with Composer. |
| 16 | + |
| 17 | +```bash |
| 18 | +composer require mintyphp/forms |
| 19 | +``` |
| 20 | + |
| 21 | +The package has no dependencies on other packages. |
| 22 | + |
| 23 | +## Quick Start |
| 24 | + |
| 25 | +Then add the following to alias the most used classes in your PHP file: |
| 26 | + |
| 27 | +```php |
| 28 | +use MintyPHP\Form\Elements as E; |
| 29 | +use MintyPHP\Form\Validator\Validators as V; |
| 30 | +``` |
| 31 | + |
| 32 | +Create a simple login form using: |
| 33 | + |
| 34 | +```php |
| 35 | +$form = E::form([ |
| 36 | + E::field(E::text('username'),E::label('Username'),[V::required('Username is required')]), |
| 37 | + E::field(E::password('password'),E::label('Password')), |
| 38 | + E::field(E::submit('Login')), |
| 39 | +]); |
| 40 | +$form->render(true); |
| 41 | +``` |
| 42 | + |
| 43 | +Now render the form using: |
| 44 | + |
| 45 | +```html |
| 46 | +<form method="post"> |
| 47 | + <div> |
| 48 | + <label for="username">Username</label> |
| 49 | + <input id="username" type="text" name="username" value=""/> |
| 50 | + </div> |
| 51 | + <div> |
| 52 | + <label for="password">Password</label> |
| 53 | + <input id="password" type="password" name="password" value=""/> |
| 54 | + </div> |
| 55 | + <div> |
| 56 | + <input type="submit" value="Login"/> |
| 57 | + </div> |
| 58 | +</form> |
| 59 | +``` |
| 60 | + |
| 61 | +Easy as that. |
| 62 | + |
| 63 | +## Frontend frameworks |
| 64 | + |
| 65 | +MintyPHP Forms has support for the Bulma framework right out of the box. |
| 66 | +Just tell MintyPHP Forms that you want to use Bulmas style forms using: |
| 67 | + |
| 68 | +```php |
| 69 | +E::$style = 'bulma'; |
| 70 | +// now render the same form |
| 71 | +$form = E::form([ |
| 72 | + E::field(E::text('username'),E::label('Username'),[V::required('Username is required')]), |
| 73 | + E::field(E::password('password'),E::label('Password')), |
| 74 | + E::field(E::submit('Login')), |
| 75 | +]); |
| 76 | +$form->render(true); |
| 77 | +``` |
| 78 | + |
| 79 | +And the output will be form in the familiar Bulma style: |
| 80 | + |
| 81 | +```html |
| 82 | +<form method="post">', |
| 83 | + <div class="field">', |
| 84 | + <label class="label" for="username">Username</label>', |
| 85 | + <div class="control">', |
| 86 | + <input id="username" class="input" type="text" name="username" value=""/>', |
| 87 | + </div>', |
| 88 | + </div>', |
| 89 | + <div class="field">', |
| 90 | + <label class="label" for="password">Password</label>', |
| 91 | + <div class="control">', |
| 92 | + <input id="password" class="input" type="password" name="password" value=""/>', |
| 93 | + </div>', |
| 94 | + </div>', |
| 95 | + <div class="field">', |
| 96 | + <div class="control">', |
| 97 | + <input class="button is-primary" type="submit" value="Login"/>', |
| 98 | + </div>', |
| 99 | + </div>', |
| 100 | +</form>', |
| 101 | +``` |
| 102 | + |
| 103 | +In the future we will add support for other frameworks, such as bootstrap 5. |
| 104 | + |
| 105 | +## Backend frameworks |
| 106 | + |
| 107 | +This package has been tested with the MintyPHP backend framework. It can also be used with other frameworks as this package has no dependencies at all. |
| 108 | + |
| 109 | +Although we don't recommend you to use MintyPHP Forms without a framework, it is certainly possible, see the full example. |
| 110 | + |
| 111 | +## Full example |
| 112 | + |
| 113 | +The Form object has the following data methods: |
| 114 | + |
| 115 | +- **fill**: Fill the form with an array of data (e.g. $_POST) |
| 116 | +- **validate**: Validate the form and add errors where needed |
| 117 | +- **addErrors**: Add custom errors (after validation) |
| 118 | +- **extract**: Extract the filled in form values |
| 119 | +- **render**: Output the form with or without root element |
| 120 | + |
| 121 | +These data methods are typically used on GET: |
| 122 | + |
| 123 | +- GET: |
| 124 | + - fill (with default values or from database) |
| 125 | + - render |
| 126 | +- POST: |
| 127 | + - fill (from POST data) |
| 128 | + - validate |
| 129 | + - on success: extract |
| 130 | + - on errors: render |
| 131 | + |
| 132 | +You can see how these are used in the following full example: |
| 133 | + |
| 134 | +```php |
| 135 | +<?php |
| 136 | + |
| 137 | +use MintyPHP\Form\Elements as E; |
| 138 | +use MintyPHP\Form\Validator\Validators as V; |
| 139 | + |
| 140 | +// include MintyPHP Forms |
| 141 | +require_once 'vendor/autoload.php'; |
| 142 | + |
| 143 | +// set style to Bulma |
| 144 | +E::$style = 'bulma'; |
| 145 | + |
| 146 | +// create a form object |
| 147 | +$form = E::form([ |
| 148 | + E::field(E::text('username'), E::label('Username'), [V::required('Username is required')]), |
| 149 | + E::field(E::password('password'), E::label('Password')), |
| 150 | + E::field(E::submit('Login')), |
| 151 | +]); |
| 152 | + |
| 153 | +// check if the form has been submitted |
| 154 | +if ($_SERVER['REQUEST_METHOD'] == 'POST') { |
| 155 | + // fill the form with the submitted data |
| 156 | + $form->fill($_POST); |
| 157 | + // if the form is valid, process the data |
| 158 | + if ($form->validate()) { |
| 159 | + // extract the data |
| 160 | + $data = $form->extract(); |
| 161 | + // process the data (e.g., login, save to database, etc.) |
| 162 | + if ($data['username'] == 'user' && $data['password'] == 'pass') { |
| 163 | + // redirect to the dashboard page |
| 164 | + die('logged in, redirecting to dashboard...'); |
| 165 | + } else { |
| 166 | + // invalidate credentials |
| 167 | + $form->addErrors([ |
| 168 | + 'username' => 'Invalid username/password combination', |
| 169 | + 'password' => 'Invalid username/password combination', |
| 170 | + ]); |
| 171 | + } |
| 172 | + } |
| 173 | +} else { |
| 174 | + // if the form is not submitted, fill it with empty values |
| 175 | + $form->fill(['username' => '', 'password' => '']); |
| 176 | +} |
| 177 | +?> |
| 178 | +<!DOCTYPE html> |
| 179 | +<html lang="en"> |
| 180 | + |
| 181 | +<head> |
| 182 | + <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/bulma/1.0.3/css/bulma.min.css"> |
| 183 | +</head> |
| 184 | + |
| 185 | +<body class="container"> |
| 186 | + <h1 class="title">Login</h1> |
| 187 | + <?php $form->render(); ?> |
| 188 | +</body> |
| 189 | + |
| 190 | +</html> |
| 191 | +``` |
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