
WordPress主题模板层次结构指南
get_enclosed ( $post_id )
get_enclosed: 这个函数用来检索一个给定的文章的附件URL的列表。附件是用来包括RSS提要中的多媒体内容。
检索已经为一个文章附上的附件。
function get_enclosed( $post_id ) { $custom_fields = get_post_custom( $post_id ); $pung = array(); if ( ! is_array( $custom_fields ) ) { return $pung; } foreach ( $custom_fields as $key => $val ) { if ( 'enclosure' !== $key || ! is_array( $val ) ) { continue; } foreach ( $val as $enc ) { $enclosure = explode( "n", $enc ); $pung[] = trim( $enclosure[0] ); } } /** * Filters the list of enclosures already enclosed for the given post. * * @since 2.0.0 * * @param string[] $pung Array of enclosures for the given post. * @param int $post_id Post ID. */ return apply_filters( 'get_enclosed', $pung, $post_id ); }