PHP param_boolean函数代码示例

function pieform_element_rolepermissions_get_value(Pieform $form, $element)
{
    /*{{{*/
    if (isset($element['value'])) {
        return $element['value'];
    }
    if (isset($element['defaultvalue'])) {
        $value = $element['defaultvalue'];
    } else {
        $value = group_get_default_artefact_permissions($element['group']);
    }
    if ($form->is_submitted()) {
        $global = $form->get_property('method') == 'get' ? $_GET : $_POST;
        $prefix = $form->get_name() . '_' . $element['name'] . '_p';
        foreach ($value as $r => $perms) {
            foreach (array_keys(get_object_vars($perms)) as $p) {
                if ($r != 'admin') {
                    $value[$r]->{$p} = param_boolean($prefix . '_' . $r . '_' . $p);
                }
            }
        }
    }
    return $value;
}

 * @subpackage admin
 * @author     Catalyst IT Ltd
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL version 3 or later
 * @copyright  For copyright information on Mahara, please see the README file distributed with this software.
 *
 */
define('INTERNAL', 1);
define('INSTITUTIONALSTAFF', 1);
define('MENUITEM', 'configusers/usersearch');
require dirname(dirname(dirname(__FILE__))) . '/init.php';
define('TITLE', get_string('usersearch', 'admin'));
define('SECTION_PLUGINTYPE', 'core');
define('SECTION_PLUGINNAME', 'admin');
define('SECTION_PAGE', 'usersearch');
require_once 'searchlib.php';
$search = (object) array('query' => trim(param_variable('query', '')), 'f' => param_alpha('f', null), 'l' => param_alpha('l', null), 'sortby' => param_alpha('sortby', 'firstname'), 'sortdir' => param_alpha('sortdir', 'asc'), 'loggedin' => param_alpha('loggedin', 'any'), 'loggedindate' => param_variable('loggedindate', strftime(get_string('strftimedatetimeshort'))), 'duplicateemail' => param_boolean('duplicateemail', false));
$offset = param_integer('offset', 0);
$limit = param_integer('limit', 10);
if ($USER->get('admin') || $USER->get('staff')) {
    $institutions = get_records_array('institution', '', '', 'displayname');
    $search->institution = param_alphanum('institution', 'all');
} else {
    $institutionnames = array_keys(array_merge($USER->get('admininstitutions'), $USER->get('staffinstitutions')));
    $institutions = get_records_select_array('institution', 'name IN (' . join(',', array_fill(0, count($institutionnames), '?')) . ')', $institutionnames, 'displayname');
}
$loggedintypes = array();
$loggedintypes[] = array('name' => 'any', 'string' => get_string('anyuser', 'admin'));
$loggedintypes[] = array('name' => 'ever', 'string' => get_string('usershaveloggedin', 'admin'));
$loggedintypes[] = array('name' => 'never', 'string' => get_string('usershaveneverloggedin', 'admin'));
$loggedintypes[] = array('name' => 'since', 'string' => get_string('usershaveloggedinsince', 'admin'));
$loggedintypes[] = array('name' => 'notsince', 'string' => get_string('usershavenotloggedinsince', 'admin'));

 * @package    mahara
 * @subpackage core
 * @author     Catalyst IT Ltd
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL version 3 or later
 * @copyright  For copyright information on Mahara, please see the README file distributed with this software.
 *
 */
define('INTERNAL', 1);
define('SECTION_PLUGINTYPE', 'core');
define('SECTION_PLUGINNAME', 'collection');
define('SECTION_PAGE', 'edit');
require dirname(dirname(__FILE__)) . '/init.php';
require_once 'pieforms/pieform.php';
require_once 'collection.php';
$new = param_boolean('new', 0);
$copy = param_boolean('copy', 0);
if ($new) {
    // if creating a new collection
    $owner = null;
    $groupid = param_integer('group', 0);
    $institutionname = param_alphanum('institution', false);
    if (empty($groupid) && empty($institutionname)) {
        $owner = $USER->get('id');
    }
    $collection = new Collection(null, array('owner' => $owner, 'group' => $groupid, 'institution' => $institutionname));
    define('SUBTITLE', get_string('edittitleanddesc', 'collection'));
} else {
    // if editing an existing or copied collection
    $id = param_integer('id');
    $collection = new Collection($id);
    $owner = $collection->get('owner');

 * @subpackage core
 * @author     Catalyst IT Ltd
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL
 * @copyright  (C) 2006-2008 Catalyst IT Ltd http://catalyst.net.nz
 *
 */
// TODO fix title of this page
// TODO check security of this page
define('INTERNAL', 1);
require_once dirname(dirname(__FILE__)) . '/init.php';
require_once 'pieforms/pieform.php';
require_once 'view.php';
require_once get_config('libroot') . 'group.php';
define('TITLE', get_string('changemyviewlayout', 'view'));
$id = param_integer('id');
$new = param_boolean('new');
$category = param_alpha('c', '');
$view = new View($id);
$numcolumns = $view->get('numcolumns');
$currentlayout = $view->get('layout');
$back = !$USER->get_account_preference('addremovecolumns');
$group = $view->get('group');
$institution = $view->get('institution');
View::set_nav($group, $institution);
if (!$USER->can_edit_view($view)) {
    throw new AccessDeniedException();
}
// if not set, use equal width layout for that number of columns
if (!$currentlayout) {
    $currentlayout = $numcolumns == 2 ? 1 : ($numcolumns == 3 ? 4 : 7);
}

 * @author     Gregor Anzelj
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL version 3 or later
 * @copyright  For copyright information on Mahara, please see the README file distributed with this software.
 * @copyright  (C) 2010-2013 Gregor Anzelj <gregor.anzelj@gmail.com>
 *
 */
define('INTERNAL', true);
define('SECTION_PLUGINTYPE', 'core');
define('SECTION_PLUGINNAME', 'skin');
define('SECTION_PAGE', 'design');
require_once dirname(dirname(__FILE__)) . '/init.php';
require_once 'skin.php';
require_once 'pieforms/pieform.php';
safe_require('artefact', 'file');
$fieldset = param_alpha('fs', 'viewskin');
$designsiteskin = param_boolean('site', false);
if (!can_use_skins(null, $designsiteskin)) {
    throw new FeatureNotEnabledException();
}
if ($designsiteskin) {
    define('ADMIN', 1);
    if (!$USER->get('admin')) {
        $SESSION->add_error_msg(get_string('accessforbiddentoadminsection'));
        redirect();
    }
    define('MENUITEM', 'configsite/siteskins');
    $goto = '/admin/site/skins.php';
    $redirect = '/admin/site/skins.php';
} else {
    define('MENUITEM', 'myportfolio/skins');
    $goto = '/skin/index.php';

 * @copyright  For copyright information on Mahara, please see the README file distributed with this software.
 *
 */
/**
 * returns shared views in a given group id
 */
define('INTERNAL', 1);
define('JSON', 1);
require dirname(dirname(dirname(__FILE__))) . '/init.php';
safe_require('blocktype', 'groupviews');
require_once get_config('libroot') . 'view.php';
require_once get_config('libroot') . 'group.php';
require_once get_config('libroot') . 'pieforms/pieform.php';
$offset = param_integer('offset', 0);
$groupid = param_integer('group');
$editing = param_boolean('editing', false);
$group_homepage_view = group_get_homepage_view($groupid);
$bi = group_get_homepage_view_groupview_block($groupid);
if (!can_view_view($group_homepage_view)) {
    json_reply(true, get_string('accessdenied', 'error'));
}
$configdata = $bi->get('configdata');
if (!isset($configdata['showsharedviews'])) {
    $configdata['showsharedviews'] = 1;
}
$limit = isset($configdata['count']) ? intval($configdata['count']) : 5;
$limit = $limit > 0 ? $limit : 5;
// Find out what order to sort them by (default is titles)
if (!isset($configdata['sortsharedviewsby']) || $configdata['sortsharedviewsby'] == PluginBlocktypeGroupViews::SORTBY_TITLE) {
    $sortsharedviewsby = 'v.title';
} else {

 /**
  * Builds data for the artefact chooser.
  *
  * This builds three pieces of information:
  *
  * - HTML containing table rows
  * - Pagination HTML and Javascript
  * - The total number of artefacts found
  * - Artefact fields to return
  */
 public static function build_artefactchooser_data($data, $group = null, $institution = null)
 {
     global $USER;
     // If lazyload is set, immediately return an empty resultset
     // In the case of forms using lazyload, lazyload is set to false by subsequent requests via ajax,
     // for example in views/artefactchooser.json.php, at which time the full resultset is returned.
     if (isset($data['lazyload']) && $data['lazyload']) {
         $result = '';
         $pagination = build_pagination(array('id' => $data['name'] . '_pagination', 'class' => 'ac-pagination', 'url' => View::make_base_url() . (param_boolean('s') ? '&s=1' : ''), 'count' => 0, 'limit' => 0, 'offset' => 0, 'datatable' => $data['name'] . '_data', 'jsonscript' => 'view/artefactchooser.json.php', 'firsttext' => '', 'previoustext' => '', 'nexttext' => '', 'lasttext' => '', 'numbersincludefirstlast' => false, 'extradata' => array('value' => $data['defaultvalue'], 'blocktype' => $data['blocktype'], 'group' => $group, 'institution' => $institution)));
         return array($result, $pagination, 0, 0, array());
     }
     $search = '';
     if (!empty($data['search']) && param_boolean('s')) {
         $search = param_variable('search', '');
         // Maybe later, depending on performance - don't search if there's
         // not enough characters. Prompts should be added to the UI too.
         //if (strlen($search) < 3) {
         //    $search = '';
         //}
     }
     $data['search'] = $search;
     $data['offset'] -= $data['offset'] % $data['limit'];
     safe_require('blocktype', $data['blocktype']);
     $blocktypeclass = generate_class_name('blocktype', $data['blocktype']);
     $data['sortorder'] = array(array('fieldname' => 'title', 'order' => 'ASC'));
     if (method_exists($blocktypeclass, 'artefactchooser_get_sort_order')) {
         $data['sortorder'] = call_static_method($blocktypeclass, 'artefactchooser_get_sort_order');
     }
     list($artefacts, $totalartefacts) = self::get_artefactchooser_artefacts($data, $USER, $group, $institution);
     $selectone = $data['selectone'];
     $value = $data['defaultvalue'];
     $elementname = $data['name'];
     $template = $data['template'];
     $returnfields = isset($data['returnfields']) ? $data['returnfields'] : null;
     $returnartefacts = array();
     $result = '';
     if ($artefacts) {
         if (!empty($data['ownerinfo'])) {
             require_once get_config('docroot') . 'artefact/lib.php';
             $userid = $group || $institution ? null : $USER->get('id');
             foreach (artefact_get_owner_info(array_keys($artefacts)) as $k => $v) {
                 if ($artefacts[$k]->owner !== $userid || $artefacts[$k]->group !== $group || $artefacts[$k]->institution !== $institution) {
                     $artefacts[$k]->ownername = $v->name;
                     $artefacts[$k]->ownerurl = $v->url;
                 }
             }
         }
         foreach ($artefacts as &$artefact) {
             safe_require('artefact', get_field('artefact_installed_type', 'plugin', 'name', $artefact->artefacttype));
             if (method_exists($blocktypeclass, 'artefactchooser_get_element_data')) {
                 $artefact = call_static_method($blocktypeclass, 'artefactchooser_get_element_data', $artefact);
             }
             // Build the radio button or checkbox for the artefact
             $formcontrols = '';
             if ($selectone) {
                 $formcontrols .= '<input type="radio" class="radio" id="' . hsc($elementname . '_' . $artefact->id) . '" name="' . hsc($elementname) . '" value="' . hsc($artefact->id) . '"';
                 if ($value == $artefact->id) {
                     $formcontrols .= ' checked="checked"';
                 }
                 $formcontrols .= '>';
             } else {
                 $formcontrols .= '<input type="checkbox" id="' . hsc($elementname . '_' . $artefact->id) . '" name="' . hsc($elementname) . '[' . hsc($artefact->id) . ']"';
                 if ($value && in_array($artefact->id, $value)) {
                     $formcontrols .= ' checked="checked"';
                 }
                 $formcontrols .= ' class="artefactid-checkbox checkbox">';
                 $formcontrols .= '<input type="hidden" name="' . hsc($elementname) . '_onpage[]" value="' . hsc($artefact->id) . '" class="artefactid-onpage">';
             }
             $smarty = smarty_core();
             $smarty->assign('artefact', $artefact);
             $smarty->assign('elementname', $elementname);
             $smarty->assign('formcontrols', $formcontrols);
             $result .= $smarty->fetch($template) . "\n";
             if ($returnfields) {
                 $returnartefacts[$artefact->id] = array();
                 foreach ($returnfields as $f) {
                     if ($f == 'safedescription') {
                         $returnartefacts[$artefact->id]['safedescription'] = clean_html($artefact->description);
                         continue;
                     }
                     if ($f == 'attachments') {
                         // Check if the artefact has attachments - we need to update the instance config form
                         // to have those attachments selected.
                         $attachment_ids = get_column('artefact_attachment', 'attachment', 'artefact', $artefact->id);
                         $returnartefacts[$artefact->id]['attachments'] = $attachment_ids;
                         continue;
                     }
                     $returnartefacts[$artefact->id][$f] = $artefact->{$f};
                 }
             }
//.........这里部分代码省略.........

                $view = new View(array('urlid' => $pageurl, 'ownerurlid' => $profile));
            } else {
                if ($homepage = param_alphanumext('homepage', null)) {
                    $view = new View(array('urlid' => $pageurl, 'groupurlid' => $homepage));
                } else {
                    throw new ViewNotFoundException(get_string('viewnotfoundexceptiontitle', 'error'));
                }
            }
            $viewid = $view->get('id');
        } else {
            $viewid = param_integer('id');
        }
    }
}
$new = param_boolean('new');
$showmore = param_boolean('showmore');
if (!$showmore) {
    $showmore = 0;
}
if (!isset($view)) {
    $view = new View($viewid);
}
if (!can_view_view($view)) {
    $errorstr = param_integer('objection', null) ? get_string('accessdeniedobjection', 'error') : get_string('accessdenied', 'error');
    throw new AccessDeniedException($errorstr);
} else {
    // To save the atime in the db - make it a millisecond in the past
    // so it differs from the atime in the View constructor and so triggers
    // the saving of the atime change. Can't use $view->set('dirty', true)
    // as that will also get the view object to update the mtime which is not
    // what we want.

 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL version 3 or later
 * @copyright  For copyright information on Mahara, please see the README file distributed with this software.
 *
 */
define('INTERNAL', 1);
define('PUBLIC', 1);
define('SECTION_PLUGINTYPE', 'artefact');
define('SECTION_PLUGINNAME', 'internal');
define('SECTION_PAGE', 'validate');
require dirname(dirname(dirname(__FILE__))) . '/init.php';
require_once 'pieforms/pieform.php';
safe_require('artefact', 'internal');
define('TITLE', get_string('emailactivation', 'artefact.internal'));
$email = param_variable('email');
$key = param_variable('key');
$decline = param_boolean('decline');
$row = get_record('artefact_internal_profile_email', 'email', $email, 'key', $key, null, null, 'owner,artefact,email,verified,' . db_format_tsfield('expiry'));
if ($row) {
    if ($decline) {
        delete_records_select('artefact_internal_profile_email', 'verified=0 AND key=? AND email=?', array($key, $email));
        $SESSION->add_ok_msg(get_string('emailactivationdeclined', 'artefact.internal'));
        redirect(get_config('wwwroot'));
    }
    if ($row->expiry > time()) {
        if ($row->artefact) {
            $artefact = new ArtefactTypeEmail($row->artefact);
        } else {
            $artefact = new ArtefactTypeEmail();
        }
        $artefact->set('owner', $row->owner);
        $artefact->set('title', $row->email);

function editview_submit(Pieform $form, $values)
{
    global $view, $SESSION;
    if (param_boolean('back')) {
        redirect('/view/blocks.php?id=' . $view->get('id') . '&new=' . $new);
    }
    $view->set('title', $values['title']);
    $view->set('description', $values['description']);
    $view->set('tags', $values['tags']);
    if (isset($values['ownerformat']) && $view->get('owner')) {
        $view->set('ownerformat', $values['ownerformat']);
    }
    $view->commit();
    if ($values['new']) {
        $redirecturl = '/view/access.php?id=' . $view->get('id') . '&new=1';
    } else {
        $SESSION->add_ok_msg(get_string('viewsavedsuccessfully', 'view'));
        if ($view->get('group')) {
            $redirecturl = '/view/groupviews.php?group=' . $view->get('group');
        } else {
            if ($view->get('institution')) {
                $redirecturl = '/view/institutionviews.php?institution=' . $view->get('institution');
            } else {
                $redirecturl = '/view/index.php';
            }
        }
    }
    redirect($redirecturl);
}

 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL version 3 or later
 * @copyright  For copyright information on Mahara, please see the README file distributed with this software.
 *
 */
/**
 * This displays a pdf in an <iframe>
 *
 */
define('INTERNAL', 1);
define('PUBLIC', 1);
require dirname(dirname(dirname(dirname(dirname(__FILE__))))) . '/init.php';
require_once get_config('docroot') . '/artefact/lib.php';
$fileid = param_integer('file');
$viewid = param_integer('view');
$editing = param_boolean('editing', false);
$ingroup = param_boolean('ingroup', false);
if (!artefact_in_view($fileid, $viewid)) {
    throw new AccessDeniedException('');
}
if (!can_view_view($viewid)) {
    throw new AccessDeniedException('');
}
$file = artefact_instance_from_id($fileid);
if (!$file instanceof ArtefactTypeFile) {
    throw new NotFoundException();
}
$urlbase = get_config('wwwroot');
if (get_config('cleanurls') && get_config('cleanurlusersubdomains') && !$editing && !$ingroup) {
    $view = new View($viewid);
    $viewauthor = new User();
    $viewauthor->find_by_id($view->get('owner'));

<?php

/**
 *
 * @package    mahara
 * @subpackage core
 * @author     Catalyst IT Ltd
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL version 3 or later
 * @copyright  For copyright information on Mahara, please see the README file distributed with this software.
 *
 */
define('INTERNAL', 1);
define('JSON', 1);
define('INSTITUTIONALSTAFF', 1);
require dirname(dirname(dirname(__FILE__))) . '/init.php';
require_once 'searchlib.php';
$params = new StdClass();
$params->query = trim(param_variable('query', ''));
$params->institution = param_alphanum('institution', null);
$params->f = param_alpha('f', null);
$params->l = param_alpha('l', null);
$params->sortby = param_alpha('sortby', 'firstname');
$params->sortdir = param_alpha('sortdir', 'asc');
$params->loggedin = param_alpha('loggedin', 'any');
$params->loggedindate = param_variable('loggedindate', null);
$params->duplicateemail = param_boolean('duplicateemail', false);
$offset = param_integer('offset', 0);
$limit = param_integer('limit', 10);
list($html, $columns, $pagination, $search) = build_admin_user_search_results($params, $offset, $limit);
json_reply(false, array('message' => null, 'data' => array('tablerows' => $html, 'pagination' => $pagination['html'], 'pagination_js' => $pagination['javascript'])));

 /**
  * Builds data for the artefact chooser.
  *
  * This builds three pieces of information:
  *
  * - HTML containing table rows
  * - Pagination HTML and Javascript
  * - The total number of artefacts found
  */
 public static function build_artefactchooser_data($data, $group = null, $institution = null)
 {
     global $USER;
     $search = '';
     if (!empty($data['search']) && param_boolean('s')) {
         $search = param_variable('search', '');
         // Maybe later, depending on performance - don't search if there's
         // not enough characters. Prompts should be added to the UI too.
         //if (strlen($search) < 3) {
         //    $search = '';
         //}
     }
     $data['search'] = $search;
     $data['offset'] -= $data['offset'] % $data['limit'];
     safe_require('blocktype', $data['blocktype']);
     $blocktypeclass = generate_class_name('blocktype', $data['blocktype']);
     $data['sortorder'] = array(array('fieldname' => 'title', 'order' => 'ASC'));
     if (method_exists($blocktypeclass, 'artefactchooser_get_sort_order')) {
         $data['sortorder'] = call_static_method($blocktypeclass, 'artefactchooser_get_sort_order');
     }
     list($artefacts, $totalartefacts) = self::get_artefactchooser_artefacts($data, $USER, $group, $institution);
     $selectone = $data['selectone'];
     $value = $data['defaultvalue'];
     $elementname = $data['name'];
     $template = $data['template'];
     $result = '';
     if ($artefacts) {
         foreach ($artefacts as &$artefact) {
             safe_require('artefact', get_field('artefact_installed_type', 'plugin', 'name', $artefact->artefacttype));
             if (method_exists($blocktypeclass, 'artefactchooser_get_element_data')) {
                 $artefact = call_static_method($blocktypeclass, 'artefactchooser_get_element_data', $artefact);
             }
             // Build the radio button or checkbox for the artefact
             $formcontrols = '';
             if ($selectone) {
                 $formcontrols .= '<input type="radio" class="radio" id="' . hsc($elementname . '_' . $artefact->id) . '" name="' . hsc($elementname) . '" value="' . hsc($artefact->id) . '"';
                 if ($value == $artefact->id) {
                     $formcontrols .= ' checked="checked"';
                 }
                 $formcontrols .= '>';
             } else {
                 $formcontrols .= '<input type="checkbox" id="' . hsc($elementname . '_' . $artefact->id) . '" name="' . hsc($elementname) . '[' . hsc($artefact->id) . ']"';
                 if ($value && in_array($artefact->id, $value)) {
                     $formcontrols .= ' checked="checked"';
                 }
                 $formcontrols .= ' class="artefactid-checkbox checkbox">';
                 $formcontrols .= '<input type="hidden" name="' . hsc($elementname) . '_onpage[]" value="' . hsc($artefact->id) . '" class="artefactid-onpage">';
             }
             $smarty = smarty_core();
             $smarty->assign('artefact', $artefact);
             $smarty->assign('elementname', $elementname);
             $smarty->assign('formcontrols', $formcontrols);
             $result .= $smarty->fetch($template) . "\n";
         }
     }
     $pagination = build_pagination(array('id' => $elementname . '_pagination', 'class' => 'ac-pagination', 'url' => View::make_base_url() . (param_boolean('s') ? '&s=1' : ''), 'count' => $totalartefacts, 'limit' => $data['limit'], 'offset' => $data['offset'], 'datatable' => $elementname . '_data', 'jsonscript' => 'view/artefactchooser.json.php', 'firsttext' => '', 'previoustext' => '', 'nexttext' => '', 'lasttext' => '', 'numbersincludefirstlast' => false, 'extradata' => array('value' => $value, 'blocktype' => $data['blocktype'], 'group' => $group, 'institution' => $institution)));
     return array($result, $pagination, $totalartefacts, $data['offset']);
 }

<?php

/**
 *
 * @package    mahara
 * @subpackage core
 * @author     Catalyst IT Ltd
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL version 3 or later
 * @copyright  For copyright information on Mahara, please see the README file distributed with this software.
 *
 */
define('INTERNAL', 1);
define('JSON', 1);
require 'init.php';
$showhomeinfo = (int) param_boolean('showhomeinfo');
$result = array();
$USER->set_account_preference('showhomeinfo', $showhomeinfo);
json_reply(false, $result);

    $reason = param_variable('reason');
    try {
        suspend_user($id, $reason);
    } catch (MaharaException $e) {
        json_reply('local', get_string('suspendfailed', 'admin') . ': ' . $e->getMessage());
    }
    json_reply(false, get_string('usersuspended', 'admin'));
}
if ($action == 'search') {
    require_once 'searchlib.php';
    $params = new StdClass();
    $params->query = trim(param_variable('query', ''));
    $params->institution = param_alphanum('institution', null);
    $params->f = param_alpha('f', null);
    $params->l = param_alpha('l', null);
    $params->institution_requested = param_alphanum('institution_requested', null);
    $offset = param_integer('offset', 0);
    $limit = param_integer('limit', 10);
    $sortby = param_alpha('sortby', 'firstname');
    $sortdir = param_alpha('sortdir', 'asc');
    json_headers();
    if (param_boolean('raw', false)) {
        $data = get_admin_user_search_results($params, $offset, $limit, $sortby, $sortdir);
    } else {
        $data['data'] = build_admin_user_search_results($params, $offset, $limit, $sortby, $sortdir);
    }
    $data['error'] = false;
    $data['message'] = null;
    echo json_encode($data);
    exit;
}