107 lines
3.7 KiB
PHP
107 lines
3.7 KiB
PHP
<h2>Dependencies</h2>
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<p>Showcasing how elements can be validated only if other elements meet certain conditions and how callback functions for the "dependencies" rule work.</p>
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<?php
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// include the Zebra_Form class
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require '../Zebra_Form.php';
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// instantiate a Zebra_Form object
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$form = new Zebra_Form('form');
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// add the "name" element
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$form->add('label', 'label_name', 'name', 'Your name');
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$obj = $form->add('text', 'name');
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// set rules
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$obj->set_rule(array(
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'required' => array('error', 'Name is required!'),
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));
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// "notifications"
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$form->add('label', 'label_notifications', 'notifications', 'Would you like to be informed about promotional offers?');
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$obj = $form->add('radios', 'notifications', array(
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'yes' => 'Yes',
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'no' => 'No',
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));
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$obj->set_rule(array(
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'required' => array('error', 'Please select an answer!'),
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));
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// "method"
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$form->add('label', 'label_method', 'method', 'Please specify how you would like to be notified about promotional offers:');
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$obj = $form->add('checkboxes', 'method[]', array(
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'email' => 'By e-mail',
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'phone' => 'By phone',
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'post' => 'By land mail',
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));
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$obj->set_rule(array(
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'required' => array('error', 'Please specify how you would like to be notified about promotional offers!'),
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'dependencies' => array(array(
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'notifications' => 'yes',
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// whenever the value of "notification" changes, call this function and pass as second argument the value "1"
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), 'mycallback, 1'),
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));
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// "email"
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$form->add('label', 'label_email', 'email', 'Your email address:');
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$obj = $form->add('text', 'email');
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$obj->set_rule(array(
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'required' => array('error', 'Email is required!'),
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'email' => array('error', 'Email address seems to be invalid!'),
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'dependencies' => array(array(
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'method' => 'email',
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), 'mycallback, 2'),
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));
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$form->add('note', 'note_email', 'email', 'Your email address will not be published.');
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// "phone"
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$form->add('label', 'label_phone', 'phone', 'Your telephone number:');
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$obj = $form->add('text', 'phone');
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$obj->set_rule(array(
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'required' => array('error', 'Phone number is required!'),
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'digits' => array('', 'error', 'Phone number must contain only digits!'),
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'dependencies' => array(array(
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'method' => 'phone',
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), 'mycallback, 3'),
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));
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$form->add('note', 'note_phone', 'phone', 'Enter your phone number using digits only');
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// "post"
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$form->add('label', 'label_post', 'post', 'Your postal address:');
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$obj = $form->add('text', 'post');
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$obj->set_rule(array(
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'required' => array('error', 'Postal address is required!'),
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'dependencies' => array(array(
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'method' => 'post',
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), 'mycallback, 4'),
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));
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$form->add('note', 'note_post', 'post', 'Enter the address where the notifications about promotional offers should be delivered');
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// "why"
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$form->add('label', 'label_why', 'why', 'Please tell us why:');
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$obj = $form->add('textarea', 'why');
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$obj->set_rule(array(
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'required' => array('error', 'Please leave us a message!'),
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'dependencies' => array(array(
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'notifications' => 'no',
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), 'mycallback, 5'),
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));
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// "submit"
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$form->add('submit', 'btnsubmit', 'Submit');
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// if the form is valid
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if ($form->validate()) {
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// show results
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show_results();
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// otherwise
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} else
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$form->render('includes/custom-templates/example1-dependencies.php');
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?>
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