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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<title>PHP HTML Form Processor Class - Radio controls, Checkboxes, and shorthand for custom error messages</title>
<style type="text/css"> body {font-family: tahoma, arial, verdana, sans; font-size: 12px; } </style>
</head>
<body>
<?php
// require the htmlform class
require '../class.htmlform.php';
// instantiate the class
$form = new HTMLForm('form', 'post');
// we're adding a label whose id is label_options but we're not linking it to any control (the third argument is blank)
$form->add('label', 'label_options', '', 'Select an option:');
// we're adding a radio control whose name is options and whose value is o1
$form->add('radio', 'options', 'o1');
// we're attaching a label to the previously added control
// notice how we're doing that: we're using the name of the control + underscore + the value of the control!
$form->add('label', 'label_o1', 'options_o1', 'option 1');
// we're adding a radio control whose name is options and whose value is o1
$form->add('radio', 'options', 'o2');
// we're attaching a label to the previously added control
// notice how we're doing that: we're using the name of the control + underscore + the value of the control!
$form->add('label', 'label_o2', 'options_o2', 'option 2');
// we're adding a radio control whose name is options and whose value is c1
$form->add('checkbox', 'checkbox[]', 'c1');
// we're attaching a label to the previously added control
// notice how we're doing that: we're using the name of the control (without the []) + underscore + the value of the control!
$form->add('label', 'label_c1', 'checkbox_c1', 'option 1');
// we're adding a radio control whose name is options and whose value is o1
$form->add('checkbox', 'checkbox[]', 'c2');
// we're attaching a label to the previously added control
// notice how we're doing that: we're using the name of the control (without the []) + underscore + the value of the control!
$form->add('label', 'label_c2', 'checkbox_c2', 'option 2');
// add the submit button
$form->add('submit', 'submit', 'Submit');
// validate the form
if ($form->validate()) {
// quick custom validation
if (!isset($_POST['checkbox']) || !in_array('c2', $_POST['checkbox'])) {
// notice that we bind the error message to the last label - we do this so that we won't trigger an error when choosing
// to let the script to automatically generate our form's output
$form->addError('e1', 'You MUST select checkbox option 2!', 'label_c2');
} else {
// code if form is valid
print_r('Form is valid. Do your thing (write to db, send emails, whatever) and redirect.');
die();
}
}
// display the form with the specified template
$form->render('forms/radio.xtpl');
// IF YOU DO NOT NEED ANY SPECIAL FORMATTINGS IN YOUR FORM YOU CAN ALSO CALL THE RENDER METHOD WITHOUT SPECIFYING A TEMPLATE NAME
// AND THUS LETTING THE SCRIPT TO AUTOMATICALLY GENERATE OUTPUT AND SAVING YOU OF EXTRA WORK PUT INTO DESIGNING THE FORM'S LAYOUT
// COMMENT THE LINE ABOVE AND UNCOMMENT THE ONE BELOW TO SEE IT IN ACTION
//$form->render();
?>
</body>
</html>
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