2024年05月30日 建站教程
wordpress建站中如何自带函数获取文章缩略图ID,下面web建站小编给大家简单介绍一下get_post_thumbnail_id
函数的基本用法!
函数原型:
get_post_thumbnail_id( int|WP_Post $post = null ): int|false
参数说明:
$post,文章 ID 或 文章对象。
开启文章缩略图功能:
add_theme_support( 'post-thumbnails' );
函数源码:
function get_post_thumbnail_id( $post = null ) { $post = get_post( $post ); if ( ! $post ) { return false; } $thumbnail_id = (int) get_post_meta( $post->ID, '_thumbnail_id', true ); return (int) apply_filters( 'post_thumbnail_id', $thumbnail_id, $post ); }
调用方法:
$args = array( 'post_type' => 'attachment', 'numberposts' => -1, 'post_status' => 'any', 'post_parent' => $post->ID, 'exclude' => get_post_thumbnail_id(), ); $attachments = get_posts( $args ); if ( $attachments ) { foreach ( $attachments as $attachment ) { echo apply_filters( 'the_title', $attachment->post_title ); the_attachment_link( $attachment->ID, false ); } }
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