Your IP : 216.73.216.219
<?php
/**
* @package SP Page Builder
* @author JoomShaper http://www.joomshaper.com
* @copyright Copyright (c) 2010 - 2025 JoomShaper
* @license http://www.gnu.org/licenses/gpl-2.0.html GNU/GPLv2 or later
*/
//no direct access
defined ('_JEXEC') or die ('Restricted access');
use Joomla\CMS\Version;
use Joomla\CMS\Factory;
use Joomla\CMS\Uri\Uri;
use Joomla\CMS\Router\Route;
use Joomla\CMS\Access\Access;
use Joomla\CMS\Component\ComponentHelper;
use Joomla\CMS\Filesystem\File;
use Joomla\CMS\Helper\TagsHelper;
use Joomla\Utilities\ArrayHelper;
$version = new Version();
$JoomlaVersion = $version->getShortVersion();
if(version_compare($JoomlaVersion, '4.0.0', '<') && !class_exists('ContentHelperRoute')) {
require_once (JPATH_SITE . '/components/com_content/helpers/route.php');
}
abstract class SppagebuilderHelperArticles
{
/**
* Map Joomla com_fields types to SP Page Builder dynamic field types.
*
* @param string $joomlaType Raw type from #__fields.type
* @return string|null Dynamic type or null when unsupported
*
* @since 6.6.0
*/
public static function mapComContentCustomFieldTypeToDynamic($joomlaType)
{
static $map = [
'text' => 'text',
'textarea' => 'text',
'url' => 'link',
'editor' => 'rich-text',
'media' => 'image',
'calendar' => 'date-time',
'radio' => 'text',
'number' => 'number',
'integer' => 'number',
];
$joomlaType = is_string($joomlaType) ? $joomlaType : '';
return $map[$joomlaType] ?? null;
}
/**
* Published custom fields for articles (#__fields, context com_content.article).
*
* @return array
*
* @since 6.6.0
*/
public static function getPublishedArticleCustomFieldRows()
{
$db = Factory::getDbo();
$query = $db->getQuery(true)
->select($db->quoteName(['id', 'title', 'name', 'type']))
->from($db->quoteName('#__fields'))
->where($db->quoteName('context') . ' = ' . $db->quote('com_content.article'))
->where($db->quoteName('state') . ' = 1')
->order($db->quoteName('ordering') . ' ASC');
$db->setQuery($query);
return $db->loadObjectList() ?: [];
}
/**
* Attach com_fields values to an article object using each field's machine name (name) as the property key.
*
* @param object $item Article row / object passed to FieldsHelper::getFields
* @param array|null $customFields Optional preloaded array from FieldsHelper::getFields
* @return void
*
* @since 6.6.0
*/
public static function applyComContentCustomFieldValuesToItem($item, $customFields = null)
{
if (!is_object($item)) {
return;
}
if (!is_array($customFields)) {
$customFields = self::loadComContentCustomFieldsForItem($item);
}
foreach ($customFields as $field) {
if (empty($field->name)) {
continue;
}
$joomlaType = isset($field->type) ? (string) $field->type : '';
if (self::mapComContentCustomFieldTypeToDynamic($joomlaType) === null) {
continue;
}
$raw = isset($field->value) ? $field->value : null;
$item->{$field->name} = self::normalizeComContentCustomFieldStoredValue($raw, $joomlaType);
}
}
/**
* @param object $item
* @return array
*/
private static function loadComContentCustomFieldsForItem($item)
{
$version = new Version();
$JoomlaVersion = $version->getShortVersion();
if ((float) $JoomlaVersion >= 4) {
JLoader::registerAlias('FieldsHelper', 'Joomla\Component\Fields\Administrator\Helper\FieldsHelper');
} else {
JLoader::register('FieldsHelper', JPATH_ADMINISTRATOR . '/components/com_fields/helpers/fields.php');
}
return FieldsHelper::getFields('com_content.article', $item);
}
/**
* @param mixed $raw
* @param string $joomlaType
* @return string
*/
private static function normalizeComContentCustomFieldStoredValue($raw, $joomlaType)
{
if ($raw === null) {
return '';
}
if ($joomlaType === 'media') {
$path = $raw;
if (is_string($raw) && $raw !== '') {
$decoded = json_decode($raw, true);
if (is_array($decoded)) {
if (!empty($decoded['imagefile'])) {
$path = $decoded['imagefile'];
} elseif (!empty($decoded['image'])) {
$path = $decoded['image'];
}
}
}
if ($path === null || $path === '') {
return '';
}
$path = (string) $path;
if (strpos($path, 'http://') === 0 || strpos($path, 'https://') === 0) {
return $path;
}
return Uri::root(true) . '/' . ltrim($path, '/');
}
return is_scalar($raw) ? (string) $raw : '';
}
public static function checkAuthorised($id) {
if (empty($id)) {
return false;
}
$authorised = Access::getAuthorisedViewLevels(Factory::getUser()->get('id'));
$db = Factory::getDbo();
$query = $db->getQuery(true);
$query->select('*')
->from($db->quoteName('#__content'))
->where($db->quoteName('id') . ' = ' . $id)
->where($db->quoteName('state') . ' = ' . $db->quote(1))
->where($db->quoteName('access') . ' IN (' . implode(',', $authorised) . ')');
$db->setQuery($query);
$article = $db->loadObject();
if (empty($article)) {
return false;
}
return true;
}
public static function getArticles( $count = 5, $ordering = 'latest', $catid = '', $include_subcategories = true, $post_format = '', $tagids = array(), $state = 1, $currentPage = 1) {
$authorised = Access::getAuthorisedViewLevels(Factory::getUser()->get('id'));
$app = Factory::getApplication();
$db = Factory::getDbo();
$nullDate = $db->quote($db->getNullDate());
$nowDate = $db->quote(Factory::getDate()->toSql());
$baseUrl = rtrim(\Joomla\CMS\Uri\Uri::root(), '/');
$query = $db->getQuery(true);
$query
->select(['a.*', 'u.email as created_by_email', 'CASE WHEN p.profile_value IS NOT NULL THEN CONCAT(' . $db->quote($baseUrl) . ', JSON_UNQUOTE(p.profile_value)) ELSE NULL END as profile_image'])
->from($db->quoteName('#__content', 'a'))
->select($db->quoteName('b.alias', 'category_alias'))
->select($db->quoteName('b.title', 'category'))
->join('LEFT', $db->quoteName('#__categories', 'b') . ' ON (' . $db->quoteName('a.catid') . ' = ' . $db->quoteName('b.id') . ')')
->join('LEFT', $db->quoteName('#__users', 'u') . ' ON ' . $db->quoteName('u.id') . ' = ' . $db->quoteName('a.created_by') . ' AND ' . $db->quoteName('a.created_by') . ' IS NOT NULL')
->join('LEFT', $db->quoteName('#__user_profiles', 'p') . ' ON ' . $db->quoteName('p.user_id') . ' = ' . $db->quoteName('a.created_by') . ' AND ' . $db->quoteName('p.profile_key') . ' = ' . $db->quote('profileimage.profile_image'))
->where($db->quoteName('b.extension') . ' = ' . $db->quote('com_content'))
->group($db->quoteName('a.id'));
if($post_format) {
$query->where('('.$db->quoteName('a.attribs') . ' LIKE ' . $db->quote('%"post_format":"'. $post_format .'"%') . ' OR ' . $db->quoteName('a.attribs') . ' LIKE ' . $db->quote('%"helix_ultimate_article_format":"'. $post_format .'"%').')');
}
$query->where($db->quoteName('a.state') . ' = ' . $db->quote($state));
// Category filter
if (!is_array($catid))
{
$catid = [$catid];
}
if (!empty($catid))
{
$categories = self::getCategories($catid, $include_subcategories );
$categories = array_filter(ArrayHelper::toInteger(array_merge($categories, $catid)));
if (!empty($categories)) {
$query->where($db->quoteName('a.catid')." IN (" . implode( ',', $categories ) . ")");
}
}
// tags filter
if (is_array($tagids) && count($tagids)) {
$tagId = implode(',', ArrayHelper::toInteger($tagids));
if ($tagId) {
$subQuery = $db->getQuery(true)
->select('DISTINCT content_item_id')
->from($db->quoteName('#__contentitem_tag_map'))
->where('tag_id IN (' . $tagId . ')')
->where('type_alias = ' . $db->quote('com_content.article'));
$query->innerJoin('(' . (string) $subQuery . ') AS tagmap ON tagmap.content_item_id = a.id');
}
}
$version = new Version();
$JoomlaVersion = $version->getShortVersion();
// publishing
if ((float) $JoomlaVersion < 4)
{
$query->where('(a.publish_up = ' . $nullDate . ' OR a.publish_up <= ' . $nowDate . ')');
$query->where('(a.publish_down = ' . $nullDate . ' OR a.publish_down >= ' . $nowDate . ')');
}
else
{
$nowDate = Factory::getDate()->toSql();
$query->extendWhere(
'AND',
[
$db->quoteName('a.publish_up') . ' IS NULL OR ' . $db->quoteName('a.publish_up') . '=' . $nullDate,
$db->quoteName('a.publish_up') . ' <= :publishUp',
],
'OR'
)->extendWhere(
'AND',
[
$db->quoteName('a.publish_down') . ' IS NULL OR ' . $db->quoteName('a.publish_down') . '=' . $nullDate,
$db->quoteName('a.publish_down') . ' >= :publishDown',
],
'OR'
)->bind([':publishUp', ':publishDown'], $nowDate);
}
// has order by
if ($ordering == 'hits') {
$query->order($db->quoteName('a.hits') . ' DESC');
} elseif($ordering == 'featured') {
$query->where($db->quoteName('a.featured') . ' = ' . $db->quote(1));
$query->order($db->quoteName('a.publish_up') . ' DESC');
} elseif($ordering == 'oldest') {
$query->order($db->quoteName('a.publish_up') . ' ASC');
} elseif($ordering == 'alphabet_asc') {
$query->order($db->quoteName('a.title') . ' ASC');
} elseif($ordering == 'alphabet_desc') {
$query->order($db->quoteName('a.title') . ' DESC');
} elseif($ordering == 'ordering_asc') {
$query->order($db->quoteName('a.ordering') . ' ASC');
} elseif($ordering == 'ordering_desc') {
$query->order($db->quoteName('a.ordering') . ' DESC');
} elseif($ordering == 'random') {
$query->order($query->Rand());
} else {
$query->order($db->quoteName('a.publish_up') . ' DESC');
}
// Language filter
if ($app->isClient('site') && $app->getLanguageFilter()) {
$query->where('a.language IN (' . $db->Quote(Factory::getLanguage()->getTag()) . ',' . $db->Quote('*') . ')');
}
$start = ($currentPage - 1) * $count;
// continue query
$query->where($db->quoteName('a.access')." IN (" . implode( ',', $authorised ) . ")");
$query->order($db->quoteName('a.created') . ' DESC');
if ($currentPage === -1){
$query->setLimit($count);
} else {
$query->setLimit($count, $start);
}
$db->setQuery($query);
$items = $db->loadObjectList();
$itemIds = [];
foreach ($items as $itemEntry) {
$itemIds[] = (int) $itemEntry->id;
}
$tagsMap = [];
if (!empty($itemIds)) {
$tagsHelper = new TagsHelper;
$tagsMap = $tagsHelper->getMultipleItemTags('com_content.article', $itemIds, true);
}
foreach ($items as &$item) {
$item->slug = $item->id . ':' . $item->alias;
$item->catslug = $item->catid . ':' . $item->category_alias;
$item->username = Factory::getUser($item->created_by)->name;
$item->profile_image = $item->profile_image ?? '';
$item->link = Route::_(version_compare($JoomlaVersion, '4.0.0', '>=') ? Joomla\Component\Content\Site\Helper\RouteHelper::getArticleRoute($item->slug, $item->catid, $item->language) : ContentHelperRoute::getArticleRoute($item->slug, $item->catid, $item->language));
self::applyComContentCustomFieldValuesToItem($item);
$attribs = json_decode($item->attribs);
$tagsHelper = new TagsHelper;
$tagsHelper->itemTags = isset($tagsMap[$item->id]) ? $tagsMap[$item->id] : [];
$item->tags = $tagsHelper;
$feature_img = '';
if (isset($attribs->helix_ultimate_image) && $attribs->helix_ultimate_image) {
$feature_img = $attribs->helix_ultimate_image;
} elseif (isset($attribs->spfeatured_image) && $attribs->spfeatured_image) {
$feature_img = $attribs->spfeatured_image;
}
// Featured Image
if(isset($feature_img) && $feature_img != NULL) {
$item->featured_image = $featured_image = $feature_img;
$img_baseurl = basename($featured_image);
//Small
$small = JPATH_ROOT . '/' . dirname($featured_image) . '/' . File::stripExt($img_baseurl) . '_small.' . File::getExt($img_baseurl);
if(file_exists($small)) {
$item->image_small = Uri::root(true) . '/' . dirname($featured_image) . '/' . File::stripExt($img_baseurl) . '_small.' . File::getExt($img_baseurl);
}
//Thumb
$thumbnail = JPATH_ROOT . '/' . dirname($featured_image) . '/' . File::stripExt($img_baseurl) . '_thumbnail.' . File::getExt($img_baseurl);
if(file_exists($thumbnail)) {
$item->image_thumbnail = Uri::root(true) . '/' . dirname($featured_image) . '/' . File::stripExt($img_baseurl) . '_thumbnail.' . File::getExt($img_baseurl);
} else {
$item->image_thumbnail = Uri::root(true) . '/' . $item->featured_image;
}
//Medium
$medium = JPATH_ROOT . '/' . dirname($featured_image) . '/' . File::stripExt($img_baseurl) . '_medium.' . File::getExt($img_baseurl);
if(file_exists($medium)) {
$item->image_medium = Uri::root(true) . '/' . dirname($featured_image) . '/' . File::stripExt($img_baseurl) . '_medium.' . File::getExt($img_baseurl);
}
//Large
$large = JPATH_ROOT . '/' . dirname($featured_image) . '/' . File::stripExt($img_baseurl) . '_large.' . File::getExt($img_baseurl);
if(file_exists($large)) {
$item->image_large = Uri::root(true) . '/' . dirname($featured_image) . '/' . File::stripExt($img_baseurl) . '_large.' . File::getExt($img_baseurl);
}
} else {
$images = json_decode($item->images);
if(isset($images->image_intro) && $images->image_intro) {
if(strpos($images->image_intro, "http://") !== false || strpos($images->image_intro, "https://") !== false){
$item->image_thumbnail = $images->image_intro;
} else {
$item->image_thumbnail = Uri::root(true) . '/' . $images->image_intro;
}
} elseif (isset($images->image_fulltext) && $images->image_fulltext) {
if(strpos($images->image_fulltext, "http://") !== false || strpos($images->image_fulltext, "https://") !== false){
$item->image_thumbnail = $images->image_fulltext;
} else {
$item->image_thumbnail = Uri::root(true) . '/' . $images->image_fulltext;
}
} else {
$item->image_thumbnail = false;
}
}
// Post Format
$item->post_format = 'standard';
if(isset($attribs->helix_ultimate_article_format) && $attribs->helix_ultimate_article_format != '') {
$item->post_format = $attribs->helix_ultimate_article_format;
} elseif(isset($attribs->post_format) && $attribs->post_format != '') {
$item->post_format = $attribs->post_format;
}
// Post Format Video
if(isset($item->post_format) && $item->post_format == 'video') {
$video_url = '';
if (isset($attribs->helix_ultimate_video) && $attribs->helix_ultimate_video) {
$video_url = $attribs->helix_ultimate_video;
} elseif (isset($attribs->video) && $attribs->video) {
$video_url = $attribs->video;
}
if(isset($video_url) && $video_url != NULL) {
$video = parse_url($video_url);
$video_src = '';
switch($video['host']) {
case 'youtu.be':
$video_id = trim($video['path'],'/');
$video_src = '//www.youtube.com/embed/' . $video_id;
break;
case 'www.youtube.com':
case 'youtube.com':
parse_str($video['query'], $query);
$video_id = $query['v'];
$video_src = '//www.youtube.com/embed/' . $video_id;
break;
case 'vimeo.com':
case 'www.vimeo.com':
$video_id = trim($video['path'],'/');
$video_src = "//player.vimeo.com/video/" . $video_id;
}
$item->video_src = $video_src;
} else {
$item->video_src = '';
}
}
// Post Format Audio
if(isset($item->post_format) && $item->post_format == 'audio') {
$audio_url = '';
if (isset($attribs->helix_ultimate_audio) && $attribs->helix_ultimate_audio) {
$audio_url = $attribs->helix_ultimate_audio;
} elseif (isset($attribs->audio) && $attribs->audio) {
$audio_url = $attribs->audio;
}
if(isset($audio_url) && $audio_url != NULL) {
$item->audio_embed = $audio_url;
} else {
$item->audio_embed = '';
}
}
// Post Format Quote
if(isset($item->post_format) && $item->post_format == 'quote') {
if(isset($attribs->quote_text) && $attribs->quote_text != NULL) {
$item->quote_text = $attribs->quote_text;
} else {
$item->quote_text = '';
}
if(isset($attribs->quote_author) && $attribs->quote_author != NULL) {
$item->quote_author = $attribs->quote_author;
} else {
$item->quote_author = '';
}
}
// Post Format Status
if(isset($item->post_format) && $item->post_format == 'status') {
if(isset($attribs->post_status) && $attribs->post_status != NULL) {
$item->post_status = $attribs->post_status;
} else {
$item->post_status = '';
}
}
// Post Format Link
if(isset($item->post_format) && $item->post_format == 'link') {
if(isset($attribs->link_title) && $attribs->link_title != NULL) {
$item->link_title = $attribs->link_title;
} else {
$item->link_title = '';
}
if(isset($attribs->link_url) && $attribs->link_url != NULL) {
$item->link_url = $attribs->link_url;
} else {
$item->link_url = '';
}
}
// Post Format Gallery
if(isset($item->post_format) && $item->post_format == 'gallery') {
$gallery_imgs = '';
if (isset($attribs->helix_ultimate_gallery) && $attribs->helix_ultimate_gallery) {
$gallery_imgs = $attribs->helix_ultimate_gallery;
} elseif (isset($attribs->gallery) && $attribs->gallery) {
$gallery_imgs = $attribs->gallery;
}
$item->imagegallery = new stdClass();
$gallery_imgs;
if(isset($gallery_imgs) && $gallery_imgs != NULL) {
$gallery_img_decode = json_decode($gallery_imgs);
$gallery_all_images = '';
if (isset($gallery_img_decode->helix_ultimate_gallery_images) && $gallery_img_decode->helix_ultimate_gallery_images) {
$gallery_all_images = $gallery_img_decode->helix_ultimate_gallery_images;
} elseif (isset($gallery_img_decode->gallery_images) && $gallery_img_decode->gallery_images) {
$gallery_all_images = $gallery_img_decode->gallery_images;
}
$gallery_images = array();
if(isset($gallery_all_images) && is_array($gallery_all_images)){
foreach ($gallery_all_images as $key=>$value) {
$gallery_images[$key]['full'] = $value;
$gallery_img_baseurl = basename($value);
//Small
$small = JPATH_ROOT . '/' . dirname($value) . '/' . File::stripExt($gallery_img_baseurl) . '_small.' . File::getExt($gallery_img_baseurl);
if(file_exists($small)) {
$gallery_images[$key]['small'] = Uri::root(true) . '/' . dirname($value) . '/' . File::stripExt($gallery_img_baseurl) . '_small.' . File::getExt($gallery_img_baseurl);
}
//Thumbnail
$thumbnail = JPATH_ROOT . '/' . dirname($value) . '/' . File::stripExt($gallery_img_baseurl) . '_thumbnail.' . File::getExt($gallery_img_baseurl);
if(file_exists($thumbnail)) {
$gallery_images[$key]['thumbnail'] = Uri::root(true) . '/' . dirname($value) . '/' . File::stripExt($gallery_img_baseurl) . '_thumbnail.' . File::getExt($gallery_img_baseurl);
}
//Medium
$medium = JPATH_ROOT . '/' . dirname($value) . '/' . File::stripExt($gallery_img_baseurl) . '_medium.' . File::getExt($gallery_img_baseurl);
if(file_exists($medium)) {
$gallery_images[$key]['medium'] = Uri::root(true) . '/' . dirname($value) . '/' . File::stripExt($gallery_img_baseurl) . '_medium.' . File::getExt($gallery_img_baseurl);
}
//Large
$large = JPATH_ROOT . '/' . dirname($value) . '/' . File::stripExt($gallery_img_baseurl) . '_large.' . File::getExt($gallery_img_baseurl);
if(file_exists($large)) {
$gallery_images[$key]['large'] = Uri::root(true) . '/' . dirname($value) . '/' . File::stripExt($gallery_img_baseurl) . '_large.' . File::getExt($gallery_img_baseurl);
}
}
}
$item->imagegallery->images = $gallery_images;
} else {
$item->imagegallery->images = array();
}
}
$keysToAdd = [
'image_small',
'image_medium',
'image_large',
'image_intro',
'image_intro_alt',
'float_intro',
'image_intro_caption',
'image_fulltext',
'image_fulltext_alt',
'float_fulltext',
'image_fulltext_caption'
];
foreach ($keysToAdd as $key) {
if (!isset($item->$key)) {
$item->$key = '';
}
}
if (isset($item->images)) {
$images = json_decode($item->images);
if (isset($images)) {
foreach($images as $key => $value) {
$item->$key = $value;
}
}
}
if (empty($item->profile_image)) {
$enableGravatar = ComponentHelper::getParams('com_sppagebuilder')->get('enable_gravatar', 1);
if ($enableGravatar && !empty($item->created_by_email)) {
$gravatarUrl = self::getGravatarUrl($item->created_by_email, 45, '404');
if ($gravatarUrl) {
$item->profile_image = $gravatarUrl;
}
}
}
// Fetch layout data from SP Page Builder for this article
$query = $db->getQuery(true);
$query->select($db->quoteName(['content', 'text', 'css']));
$query->from($db->quoteName('#__sppagebuilder'));
$query->where($db->quoteName('extension') . ' = ' . $db->quote('com_content'));
$query->where($db->quoteName('extension_view') . ' = ' . $db->quote('article'));
$query->where($db->quoteName('view_id') . ' = ' . (int) $item->id);
$query->where($db->quoteName('active') . ' = 1');
$db->setQuery($query);
$layoutData = $db->loadObject();
if (empty($layoutData)) {
$item->layout = null;
continue;
}
$item->layout = $layoutData;
}
return $items;
}
public static function getArticlesCount() {
$app = Factory::getApplication();
$db = Factory::getDbo();
$query = $db->getQuery(true);
$query->select('COUNT(*)');
$query->from($db->quoteName('#__content'));
$db->setQuery($query);
$count = $db->loadResult();
return $count;
}
public static function getCategories($parent_id = [1], $include_subcategories = true, $child = false, $cats = array()) {
$app = Factory::getApplication();
$db = Factory::getDbo();
$query = $db->getQuery(true);
$query
->select('*')
->from($db->quoteName('#__categories'))
->where($db->quoteName('extension') . ' = ' . $db->quote('com_content'))
->where($db->quoteName('published') . ' = ' . $db->quote(1))
->where($db->quoteName('access')." IN (" . implode( ',', Factory::getUser()->getAuthorisedViewLevels() ) . ")")
->where($db->quoteName('language')." IN (" . $db->Quote(Factory::getLanguage()->getTag()).", ".$db->Quote('*') . ")");
if (!empty(array_filter($parent_id)))
{
$query->where($db->quoteName('parent_id')." IN (" . implode( ',', $parent_id ) . ")");
}
$query->order($db->quoteName('lft') . ' ASC');
$db->setQuery($query);
$rows = $db->loadObjectList();
foreach ($rows as $row) {
if($include_subcategories) {
array_push($cats, $row->id);
if (self::hasChildren($row->id)) {
$cats = self::getCategories(array($row->id), $include_subcategories, true, $cats);
}
}
}
return $cats;
}
private static function hasChildren($parent_id = 1) {
$app = Factory::getApplication();
$db = Factory::getDbo();
$query = $db->getQuery(true);
$query
->select('*')
->from($db->quoteName('#__categories'))
->where($db->quoteName('extension') . ' = ' . $db->quote('com_content'))
->where($db->quoteName('published') . ' = ' . $db->quote(1))
->where($db->quoteName('access')." IN (" . implode( ',', Factory::getUser()->getAuthorisedViewLevels() ) . ")")
->where($db->quoteName('language')." IN (" . $db->Quote(Factory::getLanguage()->getTag()).", ".$db->Quote('*') . ")")
->where($db->quoteName('parent_id') . ' = ' . $db->quote($parent_id))
->order($db->quoteName('created_time') . ' DESC');
$db->setQuery($query);
$childrens = $db->loadObjectList();
if(is_array($childrens) && count($childrens)) {
return true;
}
return false;
}
private static function getGravatarUrl($email, $size = 45, $default = '404') {
if (empty($email)) {
return false;
}
$hash = md5(strtolower(trim($email)));
$url = "https://www.gravatar.com/avatar/{$hash}?s={$size}&d={$default}";
return $url;
}
}