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<?php
/**
 * Zend Framework
 *
 * LICENSE
 *
 * This source file is subject to the new BSD license that is bundled
 * with this package in the file LICENSE.txt.
 * It is also available through the world-wide-web at this URL:
 * http://framework.zend.com/license/new-bsd
 * If you did not receive a copy of the license and are unable to
 * obtain it through the world-wide-web, please send an email
 * to license@zend.com so we can send you a copy immediately.
 *
 * @category   Zend
 * @package    Zend_View
 * @subpackage Helper
 * @copyright  Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com)
 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 * @version    $Id: FormSelect.php 24594 2012-01-05 21:27:01Z matthew $
 */

/**
 * Abstract class for extension
 */
//--//require_once 'Zend/View/Helper/FormElement.php';

/**
 * Helper to generate "select" list of options
 *
 * @category   Zend
 * @package    Zend_View
 * @subpackage Helper
 * @copyright  Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com)
 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 */
class Zend_View_Helper_FormSelect extends Zend_View_Helper_FormElement
{
    /**
     * Generates 'select' list of options.
     *
     * @access public
     *
     * @param string|array $name If a string, the element name.  If an
     * array, all other parameters are ignored, and the array elements
     * are extracted in place of added parameters.
     *
     * @param mixed $value The option value to mark as 'selected'; if an
     * array, will mark all values in the array as 'selected' (used for
     * multiple-select elements).
     *
     * @param array|string $attribs Attributes added to the 'select' tag.
     *
     * @param array $options An array of key-value pairs where the array
     * key is the radio value, and the array value is the radio text.
     *
     * @param string $listsep When disabled, use this list separator string
     * between list values.
     *
     * @return string The select tag and options XHTML.
     */
    public function formSelect($name, $value = null, $attribs = null,
        $options = null, $listsep = "<br />\n")
    {
        $info = $this->_getInfo($name, $value, $attribs, $options, $listsep);
        extract($info); // name, id, value, attribs, options, listsep, disable

// force $value to array so we can compare multiple values to multiple
        // options; also ensure it's a string for comparison purposes.
        $value = array_map('strval', (array) $value);

// check if element may have multiple values
        $multiple = '';

if (substr($name, -2) == '[]') {
            // multiple implied by the name
            $multiple = ' multiple="multiple"';
        }

if (isset($attribs['multiple'])) {
            // Attribute set
            if ($attribs['multiple']) {
                // True attribute; set multiple attribute
                $multiple = ' multiple="multiple"';

// Make sure name indicates multiple values are allowed
                if (!empty($multiple) && (substr($name, -2) != '[]')) {
                    $name .= '[]';
                }
            } else {
                // False attribute; ensure attribute not set
                $multiple = '';
            }
            unset($attribs['multiple']);
        }

// now start building the XHTML.
        $disabled = '';
        if (true === $disable) {
            $disabled = ' disabled="disabled"';
        }

// Build the surrounding select element first.
        $xhtml = '<select'
                . ' name="' . $this->view->escape($name) . '"'
                . ' id="' . $this->view->escape($id) . '"'
                . $multiple
                . $disabled
                . $this->_htmlAttribs($attribs)
                . ">\n    ";

// build the list of options
        $list       = array();
        $translator = $this->getTranslator();
        foreach ((array) $options as $opt_value => $opt_label) {
            if (is_array($opt_label)) {
                $opt_disable = '';
                if (is_array($disable) && in_array($opt_value, $disable)) {
                    $opt_disable = ' disabled="disabled"';
                }
                if (null !== $translator) {
                    $opt_value = $translator->translate($opt_value);
                }
                $opt_id = ' id="' . $this->view->escape($id) . '-optgroup-'
                        . $this->view->escape($opt_value) . '"';
                $list[] = '<optgroup'
                        . $opt_disable
                        . $opt_id
                        . ' label="' . $this->view->escape($opt_value) .'">';
                foreach ($opt_label as $val => $lab) {
                    $list[] = $this->_build($val, $lab, $value, $disable);
                }
                $list[] = '</optgroup>';
            } else {
                $list[] = $this->_build($opt_value, $opt_label, $value, $disable);
            }
        }

// add the options to the xhtml and close the select
        $xhtml .= implode("\n    ", $list) . "\n</select>";

return $xhtml;
    }

/**
     * Builds the actual <option> tag
     *
     * @param string $value Options Value
     * @param string $label Options Label
     * @param array  $selected The option value(s) to mark as 'selected'
     * @param array|bool $disable Whether the select is disabled, or individual options are
     * @return string Option Tag XHTML
     */
    protected function _build($value, $label, $selected, $disable)
    {
        if (is_bool($disable)) {
            $disable = array();
        }

$opt = '<option'
             . ' value="' . $this->view->escape($value) . '"'
             . ' label="' . $this->view->escape($label) . '"';

// selected?
        if (in_array((string) $value, $selected)) {
            $opt .= ' selected="selected"';
        }

// disabled?
        if (in_array($value, $disable)) {
            $opt .= ' disabled="disabled"';
        }

$opt .= '>' . $this->view->escape($label) . "</option>";

return $opt;
    }

}

Editing: FormSelect.php

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