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limititerator a 5U p_5U @ @5U ` 0 @5U u2l CachingIterator ! 5U 05U 5U ФU PU U 5U 5U @5U 5U pU !U `5U `U 'U 05U (y.G 5U x5U U 'U 5U +)b(y.G 5U 1S `.G 5U U1 (r.G 5U ֲ.G 5U ֿ {.G 5U | {.G 5U K+ST.G @5U "ro0*U 5U K+ST O5U 5U Rм5U 5U 5U 5U lۦUrw &U 5U xUrw&U 5U [^y*U 5U ) ذ%U 5U 95U 0 5U R getflags н5U 05U 5U U U 'U 0 5U setFlags 1 p5U setflags 5U 5U 5U X U 倣U 'U 0 5U s getCache sts 5U н5U 5U *U U 瀣U 'U 5U +) $maximum ) ) {
return false;
}
}
return true;
}
/**
* Gets the post's first usable content image. Null if none is available.
*
* @param int|null $post_id The post id.
*
* @return string|null The image URL.
*/
public static function get_first_usable_content_image_for_post( $post_id = null ) {
$post = get_post( $post_id );
// We know get_post() returns the post or null.
if ( ! $post ) {
return null;
}
$image_finder = new WPSEO_Content_Images();
$images = $image_finder->get_images( $post->ID, $post );
return self::get_first_image( $images );
}
/**
* Gets the term's first usable content image. Null if none is available.
*
* @param int $term_id The term id.
*
* @return string|null The image URL.
*/
public static function get_first_content_image_for_term( $term_id ) {
$term_description = term_description( $term_id );
// We know term_description() returns a string which may be empty.
if ( $term_description === '' ) {
return null;
}
$image_finder = new WPSEO_Content_Images();
$images = $image_finder->get_images_from_content( $term_description );
return self::get_first_image( $images );
}
/**
* Retrieves an attachment ID for an image uploaded in the settings.
*
* Due to self::get_attachment_by_url returning 0 instead of false.
* 0 is also a possibility when no ID is available.
*
* @param string $setting The setting the image is stored in.
*
* @return int|bool The attachment id, or false or 0 if no ID is available.
*/
public static function get_attachment_id_from_settings( $setting ) {
$image_id = WPSEO_Options::get( $setting . '_id', false );
if ( ! $image_id ) {
$image = WPSEO_Options::get( $setting, false );
if ( $image ) {
// There is not an option to put a URL in an image field in the settings anymore, only to upload it through the media manager.
// This means an attachment always exists, so doing this is only needed once.
$image_id = self::get_attachment_by_url( $image );
WPSEO_Options::set( $setting . '_id', $image_id );
}
}
return $image_id;
}
/**
* Retrieves the first possible image url from an array of images.
*
* @param array $images The array to extract image url from.
*
* @return string|null The extracted image url when found, null when not found.
*/
protected static function get_first_image( $images ) {
if ( ! is_array( $images ) ) {
return null;
}
$images = array_filter( $images );
if ( empty( $images ) ) {
return null;
}
return reset( $images );
}
}