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- <?php
- /**
- * Usage example for HTML_QuickForm, using custom validation rules.
- *
- * @author Alexey Borzov <avb@php.net>
- *
- * $Id: rules-custom.php,v 1.2 2003/11/03 20:45:23 avb Exp $
- */
-
- require_once 'HTML/QuickForm.php';
- require_once 'HTML/QuickForm/Rule.php';
-
- class RuleNumericRange extends HTML_QuickForm_Rule
- {
- function validate($value, $options)
- {
- if (isset($options['min']) && floatval($value) < $options['min']) {
- return false;
- }
- if (isset($options['max']) && floatval($value) > $options['max']) {
- return false;
- }
- return true;
- }
-
- function getValidationScript($options = null)
- {
- $jsCheck = array();
- if (isset($options['min'])) {
- $jsCheck[] = 'Number({jsVar}) >= ' . $options['min'];
- }
- if (isset($options['max'])) {
- $jsCheck[] = 'Number({jsVar}) <= ' . $options['max'];
- }
- return array('', "{jsVar} != '' && !(" . implode(' && ', $jsCheck) . ')');
- } // end func getValidationScript
- }
-
- // In case you are wondering, this checks whether there are too many
- // CAPITAL LETTERS in the string
- function countUpper($value, $limit = null)
- {
- if (empty($value)) {
- return false;
- }
- if (!isset($limit)) {
- $limit = 0.5;
- }
- $upper = array_filter(preg_split('//', $value, -1, PREG_SPLIT_NO_EMPTY), 'ctype_upper');
- return (count($upper) / strlen($value)) <= $limit;
- }
-
- // BC thingie: it expects the first param to be element name
- function countUpper_old($name, $value, $limit = null)
- {
- if (empty($value)) {
- return false;
- }
- if (!isset($limit)) {
- $limit = 0.5;
- }
- $upper = array_filter(preg_split('//', $value, -1, PREG_SPLIT_NO_EMPTY), 'ctype_upper');
- return (count($upper) / strlen($value)) <= $limit;
- }
-
- $form =& new HTML_QuickForm('custom');
-
- $form->addElement('header', null, 'Custom rule class');
-
- // registering the custom rule class
- $form->registerRule('numRange', null, 'RuleNumericRange');
- $form->addElement('text', 'rNumber_1_10', 'The number (1-10):');
- $form->addRule('rNumber_1_10', 'Enter number from 1 to 10', 'numRange', array('min' => 1, 'max' => 10), 'client');
-
- // adding an instance of the custom rule class without registering
- $form->addElement('text', 'rNonnegative', 'Nonnegative number:');
- $form->addRule('rNonnegative', 'Enter nonnegative number', new RuleNumericRange(), array('min' => 0), 'client');
-
- // adding a classname of the custom rule class without registering
- $form->addElement('text', 'rNonpositive', 'Nonpositive number:');
- $form->addRule('rNonpositive', 'Enter nonpositive number', 'RuleNumericRange', array('max' => 0), 'client');
-
- $form->addElement('header', null, 'Using callbacks');
-
- // using callback without registering
- $form->addElement('text', 'rUpper_0_5', 'Some (preferrably lowercase) text:');
- $form->addRule('rUpper_0_5', 'There are too many CAPITAL LETTERS', 'callback', 'countUpper');
-
- // register with 'callback' type
- $form->registerRule('upper', 'callback', 'countUpper');
- $form->addElement('text', 'rUpper_0_25', 'Some (mostly lowercase) text:');
- $form->addRule('rUpper_0_25', 'There are too many CAPITAL LETTERS', 'upper', 0.25);
-
- // BC feature: register with 'function' type
- $form->registerRule('upperOld', 'function', 'countUpper_old');
- $form->addElement('text', 'rUpper_0', 'Some lowercase text:');
- $form->addRule('rUpper_0', 'There are CAPITAL LETTERS, this is not allowed', 'upperOld', 0);
-
- $form->addElement('submit', null, 'Send');
-
- $form->applyFilter(array('rUpper_0_5', 'rUpper_0_25', 'rUpper_0'), 'trim');
- $form->applyFilter(array('rNumber_1_10', 'rNonnegative', 'rNonpositive'), 'floatval');
-
- $form->validate();
-
- $form->display();
- ?>
-