/**
* Convert a Twitter card into <meta name="" content=""> pairs
*
* @since 1.0.0
*
* @return string HTML <meta> elements
*/
public static function buildMetaElements()
{
$card = \Twitter\WordPress\Cards\Generator::get();
if (!$card) {
return '';
}
/**
* Filter associative array of Twitter Card values
*
* Resulting array will be output to the page as <meta> elements
* All keys receive the "twitter:" prefix inside a name attribute before output
* Structured values are passed as an array. example: 'image' => array( 'src' => 'http://example.com/i.jpg', 'width' => 640 )
*
* @since 1.0.0
*
* @param array $card_properties associative array of Twitter Card values {
* @type string card property name
* @type string|int|array property value
* }
*/
$card_properties = apply_filters('twitter_card', $card->toArray());
if (!is_array($card_properties) || empty($card_properties)) {
return '';
}
$html = '';
foreach ($card_properties as $name => $content) {
if (is_array($content) && $name) {
foreach ($content as $structured_name => $structured_value) {
$html .= \Twitter\WordPress\Head\MetaElement::fromNameContentPair($structured_name === 'src' ? $name : $name . ':' . $structured_name, $structured_value);
}
} else {
$html .= \Twitter\WordPress\Head\MetaElement::fromNameContentPair($name, $content);
}
}
return $html;
}
/**
* Build HTML meta elements to be included as children of <head>
*
* @since 1.0.0
*
* @return string HTML meta elements
*/
public static function buildMetaElements()
{
$meta = array();
$widget_options = static::getWidgetOptions();
if (!empty($widget_options)) {
$meta = static::widgetOptionsToMetaElementPairs($widget_options);
}
unset($widget_options);
// opt out of tailored audiences
if (static::optOutOfTwitterTailoredAudiences()) {
$meta['dnt'] = 'on';
}
// powered by Twitter plugin for WordPress
// please leave for stats
$meta['partner'] = 'tfwp';
if (empty($meta)) {
return '';
}
$html = '';
foreach ($meta as $name => $content) {
$html .= \Twitter\WordPress\Head\MetaElement::fromNameContentPair($name, $content);
}
return $html;
}
