好的，我在 wordpress 中安装了一个主题，它返回一些错误。
Warning: Invalid argument supplied for foreach() in /home/mvprop/public_html/wp-content/themes/yoo_vox_wp/warp/systems/wordpress.3.0/helpers/system.php on line 339
这个问题在这些论坛上得到解决
但我不明白最后一篇文章是关于什么的。这家伙发布了一堆解决问题的随机代码。他没有具体说明它来自哪里或放在哪里。只是粘贴似乎与任何事情无关的代码。
第 334 行到文件末尾
function getWidgets($position = null) {
if (empty($this->widgets)) {
foreach (wp_get_sidebars_widgets() as $pos => $ids) {
$this->widgets[$pos] = array();
foreach ($ids as $id) {
$this->widgets[$pos][$id] = $this->getWidget($id);
}
}
}
if (!is_null($position)) {
return isset($this->widgets[$position]) ? $this->widgets[$position] : array();
}
return $this->widgets;
}
/*
Function: displayWidget
Checks if a widget should be displayed
Returns:
Boolean
*/
function displayWidget($widget) {
if (!isset($widget->options['display']) || in_array('*', $widget->options['display'])) return true;
foreach ($this->getQuery() as $q) {
if (in_array($q, $widget->options['display'])) {
return true;
}
}
return false;
}
/*
Function: overrideConfig
Overrides default config based on page
Returns:
Void
*/
function overrideConfig() {
if (!count($this->config_overrides)) return;
foreach ($this->getQuery() as $q) {
if (isset($this->config_overrides[$q])) {
$this->warp->config->parseString($this->config_overrides[$q]);
}
}
}
/*
Function: isBlog
Returns:
Boolean
*/
function isBlog() {
return true;
}
/*
Function: isPreview
Checks for default widgets in theme preview
Returns:
Boolean
*/
function isPreview($position) {
// preview postions
$positions = array('logo', 'right');
return is_preview() && in_array($position, $positions);
}
/*
Function: ajaxSearch
Ajax search callback
Returns:
String
*/
function ajaxSearch(){
global $wp_query;
$result = array('results' => array());
$query = isset($_REQUEST['s']) ? $_REQUEST['s']:"";
if (strlen($query)>=3) {
$wp_query->query_vars['s'] = $query;
$wp_query->is_search = true;
foreach ($wp_query->get_posts() as $post) {
$content = !empty($post->post_excerpt) ? strip_tags(do_shortcode($post->post_excerpt)) : strip_tags(do_shortcode($post->post_content));
if (strlen($content) > 255) {
$content = substr($content, 0, 254).'...';
}
$result['results'][] = array(
'title' => $post->post_title,
'text' => $content,
'url' => get_permalink($post->ID)
);
}
}
die(json_encode($result));
}
/*
Function: _adminInit
Admin init actions
Returns:
Void
*/
function _adminInit() {
if ((defined('DOING_AJAX') && DOING_AJAX) && isset($_POST['warp-ajax-save'])) {
// update option values
foreach ($_POST as $option => $value) {
if (preg_match('/^(warp_|'.preg_quote($this->prefix, '/').')/', $option)) {
update_option($option, $value);
}
}
die();
}
wp_enqueue_script('warp-admin', rtrim(get_bloginfo('template_url'),'/').'/warp/systems/wordpress.3.0/js/wp-admin.js', false, '1.0');
add_action('wp_ajax_save_nav_settings', array($this,'_save_nav_settings'));
add_action('wp_ajax_get_nav_settings', array($this,'_get_nav_settings'));
}
/*
Function: _adminHead
Admin head actions
Returns:
Void
*/
function _adminHead() {
// init vars
$path =& $this->getHelper('path');
$head[] = '<link rel="stylesheet" href="'.$path->url('warp:systems/wordpress.3.0/css/admin.css').'" type="text/css" />';
$head[] = '<script type="text/javascript" src="'.$path->url('warp:systems/wordpress.3.0/js/admin.js').'"></script>';
echo implode("\n", $head);
}
/*
Function: _adminMenu
Admin menu actions
Returns:
Void
*/
function _adminMenu() {
// init vars
$path =& $this->getHelper('path');
$name = $this->xml->document->getElement('name');
$icon = $path->url('warp:systems/wordpress.3.0/images/yoo_icon_16.png');
if (function_exists('add_object_page')) {
add_object_page('', $name->data(), 8, 'warp', false, $icon);
} else {
add_menu_page('', $name->data(), 8, 'warp', false, $icon);
}
add_submenu_page('warp', 'Theme Options', 'Theme Options', 8, 'warp', array($this, '_adminThemeOptions'));
add_submenu_page('warp', 'Widget Options', 'Widget Options', 8, 'warp_widget', array($this, '_adminWidgetOptions'));
}
/*
Function: _adminThemeOptions
Render admin theme options layout
Returns:
Void
*/
function _adminThemeOptions() {
// init vars
$path =& $this->getHelper('path');
$xml =& $this->getHelper('xml');
$http =& $this->getHelper('http');
$check =& $this->getHelper('checksum');
// get warp xml
$warp_xml = $xml->load($path->path('warp:warp.xml'), 'xml', true);
// update check
$update = null;
if ($url = $warp_xml->document->getElement('updateUrl')) {
// get template info
$template = get_template();
$version = $this->xml->document->getElement('version');
$url = sprintf('%s?application=%s&version=%s&format=raw', $url->data(), $template, $version->data());
// only check once a day
if (get_option($this->prefix.'update_check') != date('Y-m-d').' '.$version->data()) {
if ($request = $http->get($url)) {
update_option($this->prefix.'update_check', date('Y-m-d').' '.$version->data());
update_option($this->prefix.'update_data', $request['body']);
}
}
// decode update response
$update = json_decode(get_option($this->prefix.'update_data'));
}
// verify theme files
if (($checksums = $path->path('template:checksums')) && filesize($checksums)) {
$check->verify($path->path('template:'), $log);
} else {
$log = false;
}
echo $this->warp->template->render('admin/theme_options', array('xml' => $this->xml, 'warp_xml' => $warp_xml, 'update' => $update, 'checklog' => $log));
}
/*
Function: _adminWidgetOptions
Render admin widget options layout
Returns:
Void
*/
function _adminWidgetOptions() {
// get position settings
$position_settings = $this->warp->config->get('warp.positions');
// get module settings
$module_settings = array();
$settings = $this->xml->document->getElement('modulesettings');
foreach ($settings->children() as $setting) {
$module_settings[$setting->attributes('name')] = $setting;
}
echo $this->warp->template->render('admin/widget_options', compact('position_settings', 'module_settings'));
}
/*
Function: getMenuItemOptions
Retrieve menu by id
Parameters:
$id - Menu Item ID
Returns:
Array
*/
function getMenuItemOptions($id) {
$menu_settings = array(
'columns' => 1,
'columnwidth' => -1,
'image' => ''
);
if (isset($this->menu_item_options[$id])) {
$menu_settings = array_merge($menu_settings, $this->menu_item_options[$id]);
}
return $menu_settings;
}
/*
Function: _save_nav_settings
Saves menu item settings
Returns:
Void
*/
function _save_nav_settings() {
if (isset($_POST['menu-item'])) {
$menu_item_settings = $this->menu_item_options;
foreach ($_POST['menu-item'] as $itemId=>$settings){
$menu_item_settings[$itemId] = $settings;
}
update_option($this->prefix.'menu-items', $menu_item_settings);
$this->menu_item_options = $menu_item_settings;
}
die();
}
/*
Function: _get_nav_settings
Returns menu item settings as json
Returns:
Boolean
*/
function _get_nav_settings() {
die(json_encode($this->menu_item_options));
}
}
/*
Function: mb_strpos
mb_strpos function for servers not using the multibyte string extension
*/
if (!function_exists('mb_strpos')) {
function mb_strpos($haystack, $needle, $offset = 0) {
return strpos($haystack, $needle, $offset);
}
}