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<?php
/**
 * Smarty plugin
 * @package Smarty
 * @subpackage plugins
 */

/**
 * Smarty {html_checkboxes} function plugin
 *
 * File: function.html_checkboxes.php 
 * Type: function 
 * Name: html_checkboxes 
 * Date: 24.Feb.2003 
 * Purpose: Prints out a list of checkbox input types 
 * Input: 
 * - name (optional) - string default "checkbox"
 * - values (required) - array
 * - options (optional) - associative array
 * - checked (optional) - array default not set
 * - separator (optional) - ie or  
 * - output (optional) - the output next to each checkbox
 * - assign (optional) - assign the output as an array to this variable
 * Examples:
 * <pre>
 * {html_checkboxes values=$ids output=$names}
 * {html_checkboxes values=$ids name='box' separator=' ' output=$names}
 * {html_checkboxes values=$ids checked=$checked separator=' ' output=$names}
 * </pre>
 * @link http://smarty.php.net/manual/en/language.function.html.checkboxes.php {html_checkboxes}
 * (Smarty online manual)
 * @author Christopher Kvarme <christopher.kvarme@flashjab.com>
 * @author credits to Monte Ohrt <monte at ohrt dot com>
 * @version 1.0
 * @param array
 * @param Smarty
 * @return string
 * @uses smarty_function_escape_special_chars()
 */
function smarty_function_html_checkboxes($params, &$smarty)
{
 require_once $smarty->_get_plugin_filepath('shared','escape_special_chars');

$name = 'checkbox';
    $values = null;
    $options = null;
    $selected = null;
    $separator = '';
    $labels = true;
    $output = null;

$extra = '';

foreach($params as $_key => $_val) {
        switch($_key) {
            case 'name':
            case 'separator':
                $$_key = $_val;
                break;

case 'labels':
                $$_key = (bool)$_val;
                break;

case 'options':
                $$_key = (array)$_val;
                break;

case 'values':
            case 'output':
                $$_key = array_values((array)$_val);
                break;

case 'checked':
            case 'selected':
                $selected = array_map('strval', array_values((array)$_val));
                break;

case 'checkboxes':
                $smarty->trigger_error('html_checkboxes: the use of the "checkboxes" attribute is deprecated, use "options" instead', E_USER_WARNING);
                $options = (array)$_val;
                break;

case 'assign':
                break;

default:
                if(!is_array($_val)) {
                    $extra .= ' '.$_key.'="'.smarty_function_escape_special_chars($_val).'"';
                } else {
                    $smarty->trigger_error("html_checkboxes: extra attribute '$_key' cannot be an array", E_USER_NOTICE);
                }
                break;
        }
    }

if (!isset($options) && !isset($values))
        return ''; /* raise error here? */

settype($selected, 'array');
    $_html_result = array();

if (isset($options)) {

foreach ($options as $_key=>$_val)
            $_html_result[] = smarty_function_html_checkboxes_output($name, $_key, $_val, $selected, $extra, $separator, $labels);

} else {
        foreach ($values as $_i=>$_key) {
            $_val = isset($output[$_i]) ? $output[$_i] : '';
            $_html_result[] = smarty_function_html_checkboxes_output($name, $_key, $_val, $selected, $extra, $separator, $labels);
        }

}

if(!empty($params['assign'])) {
        $smarty->assign($params['assign'], $_html_result);
    } else {
        return implode("\n",$_html_result);
    }

}

function smarty_function_html_checkboxes_output($name, $value, $output, $selected, $extra, $separator, $labels) {
 $_output = '';
 if ($labels) $_output .= '<label>';
 $_output .= '<input type="checkbox" name="'
 . smarty_function_escape_special_chars($name) . '[]" value="'
 . smarty_function_escape_special_chars($value) . '"';

if (in_array((string)$value, $selected)) {
 $_output .= ' checked="checked"';
 }
 $_output .= $extra . ' />' . $output;
 if ($labels) $_output .= '</label>';
 $_output .= $separator;

return $_output;
}