wp_get_attachment_metadata

函数



      wp_get_attachment_metadata ( $attachment_id = 0, $unfiltered = false )

参数

(int)
$attachment_id
Attachment post ID. Defaults to global $post.
Required: 否
(bool)
$unfiltered
Optional. If true, filters are not run. Default false.
Required: 否

Default: false

返回值

(array|false) { Attachment metadata. False on failure. @type int $width The width of the attachment. @type int $height The height of the attachment. @type string $file The file path relative to `wp-content/uploads`. @type array $sizes Keys are size slugs, each value is an array containing ‘file’, ‘width’, ‘height’, and ‘mime-type’. @type array $image_meta Image metadata. @type int $filesize File size of the attachment. }

定义位置

wp-includes/post.php
, line 6554

引入: 2.1.0

弃用: –

Retrieves attachment metadata for attachment ID.

function wp_get_attachment_metadata( $attachment_id = 0, $unfiltered = false ) {
	$attachment_id = (int) $attachment_id;

	if ( ! $attachment_id ) {
		$post = get_post();

		if ( ! $post ) {
			return false;
		}

		$attachment_id = $post->ID;
	}

	$data = get_post_meta( $attachment_id, '_wp_attachment_metadata', true );

	if ( ! $data ) {
		return false;
	}

	if ( $unfiltered ) {
		return $data;
	}

	/**
	 * Filters the attachment meta data.
	 *
	 * @since 2.1.0
	 *
	 * @param array $data          Array of meta data for the given attachment.
	 * @param int   $attachment_id Attachment post ID.
	 */
	return apply_filters( 'wp_get_attachment_metadata', $data, $attachment_id );
}

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