/**
* get page tags as unordred list or array
* @since 3.4
* @param bool $echo Optional, default is true. False will 'return' value
* @param bool $asarray if echo is false and asarray is true, returns an array of tags
* @return array html string or array of tags for page
*/
function get_page_meta_keywords_list($echo = true, $asarray = false)
{
$tags = getPageGlobal('metak');
$tags = exec_filter('metak-list', $tags);
// @filter metak-list (str) filter the meta keywords in list output
$tags = tagsToAry($tags);
if (!$echo && $asarray) {
return $tags;
}
$str = "<ul>";
foreach ($tags as $tag) {
if (!empty($tag)) {
$str .= "<li>{$tag}</li>";
}
}
$str .= "</ul>";
return echoReturn($str);
}
/**
* filter pages by tags
*
* return pages with tags matching any or all of specified tags
* optionally exclude matches via exclude flag which inverts the resulting pages
*
* accepts an array or a csv string of keywords
* eg. getPages('filterTags',array('test','test2','позтюлант'),$case=false, $exclusive=false, $exclude=false);
*
* @since 3.4
* @param array $pages pagesarray
* @param mixed $tags array or keyword string of tags to filter by
* @param boolean $case preserve case if true, default case-insensitive
* @param boolean $exclusive require match ALL if true, else match ANY
* @param boolean $exclude invert filter, return pages not matching tags
* @return array filtered PAGES collection
*/
function filterTags($pages, $tags, $case = false, $exclusive = false, $exclude = false)
{
$filterFunc = $exclusive ? 'filterTagsMatchAll' : 'filterTagsMatchAny';
// if input tags not array, convert
if (!is_array($tags)) {
$tags = tagsToAry($tags, $case);
}
// if lowercase, normalize input tags to lowercase
if (!$case) {
$tags = array_map('lowercase', $tags);
$filterFunc .= 'i';
// change filterfunc to lowercase compare
}
$pagesFiltered = filterKeyValueFunc($pages, 'meta', $tags, $filterFunc . 'Cmp');
if ($exclude) {
$pagesFiltered = array_diff_key($pages, $pagesFiltered);
}
// invert PAGES
return $pagesFiltered;
}