Question

get_attached_media( string $type,  int|WP_Post $post )

Retrieves media attached to the passed post.

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description

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参数

$type

(string) (Required) Mime type.

$post

(int|WP_Post) (Optional) Post ID or WP_Post object. Default is global $post.

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返回值

(array) Found attachments.

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源代码

File: wp-includes/media.php

function get_attached_media( $type, $post = 0 ) {
	if ( ! $post = get_post( $post ) )
		return array();

	$args = array(
		'post_parent' => $post->ID,
		'post_type' => 'attachment',
		'post_mime_type' => $type,
		'posts_per_page' => -1,
		'orderby' => 'menu_order',
		'order' => 'ASC',
	);

	/**
	 * Filters arguments used to retrieve media attached to the given post.
	 *
	 * @since 3.6.0
	 *
	 * @param array  $args Post query arguments.
	 * @param string $type Mime type of the desired media.
	 * @param mixed  $post Post ID or object.
	 */
	$args = apply_filters( 'get_attached_media_args', $args, $type, $post );

	$children = get_children( $args );

	/**
	 * Filters the list of media attached to the given post.
	 *
	 * @since 3.6.0
	 *
	 * @param array  $children Associative array of media attached to the given post.
	 * @param string $type     Mime type of the media desired.
	 * @param mixed  $post     Post ID or object.
	 */
	return (array) apply_filters( 'get_attached_media', $children, $type, $post );
}

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更新日志

Version	description
3.6.0	Introduced.

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相关函数

Uses

• wp-includes/post.php: get_children()
• wp-includes/plugin.php: apply_filters()
• wp-includes/media.php: get_attached_media
• wp-includes/media.php: get_attached_media_args
• wp-includes/post.php: get_post()

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Used By

• wp-includes/media.php: wp_video_shortcode()
• wp-includes/media.php: wp_audio_shortcode()

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User Contributed Notes

1. Skip to note content You must log in to vote on the helpfulness of this noteVote results for this note: 1You must log in to vote on the helpfulness of this note Contributed by Jules Colle

   You can get all attached media, regardless of type, by passing an empty string:

   $media = get_attached_media( '' );

   or

   $media = get_attached_media( '', 102 );

Examples
Get image attachment(s) to the current Post:

$media = get_attached_media( 'image' );

Get attachment(s) of mime-type ‘audio’ to the Post with an ID of 102:

$media = get_attached_media( 'audio', 102 );

It should be noted, that this function returns array of WP_Post objects, indexed by their ID, ordered by their “menu order” by default – that is where usually plugins handling attachment store their order positions…