/**
* @abstract Tracks Meta tag information for inclusion later.
*
* @param string $type The type of meta tag. Acceptable types are `name` and `http-equiv`.
* @param string $type_value The $types value (if $type_value='author' then name='author').
* @param string $content The content of the `content` attribute of the meta tag ( name='author' content='Justin Johnson').
* @param string $append Optional. If false, any $content already at $type-$type_value will be overwritten; otherwise,
* $content will be appended to the existing $type-$type_value pair and separated by $append (default: false).
*
* @return string Returns an empty string for use with GOAT.
*/
public static function metaInclude($type, $type_value, $content, $append = false)
{
$type = strtolower(trim($type));
$type_value = strtolower(trim($type_value));
$metaData = ListBuilder::build('meta-inc');
if (!$metaData) {
$metaData = array();
} else {
$metaData = $metaData[0];
}
if (!isset($metaData[$type])) {
$metaData[$type] = array();
}
if ($append !== false && isset($metaData[$type][$type_value])) {
$metaData[$type][$type_value] = $metaData[$type][$type_value] . $append . $content;
} else {
$metaData[$type][$type_value] = $content;
}
ListBuilder::remove('meta-inc');
ListBuilder::add('meta-inc', $metaData);
return '';
}
