get_post

函数
get_post ( $post = null, $output = OBJECT, $filter = 'raw' )
参数
  • (int|WP_Post|null) $post Optional. Post ID or post object. `null`, `false`, `0` and other PHP falsey values return the current global post inside the loop. A numerically valid post ID that points to a non-existent post returns `null`. Defaults to global $post.
    Required:
    Default: null
  • (string) $output Optional. The required return type. One of OBJECT, ARRAY_A, or ARRAY_N, which correspond to a WP_Post object, an associative array, or a numeric array, respectively. Default OBJECT.
    Required:
    Default: OBJECT
  • (string) $filter Optional. Type of filter to apply. Accepts 'raw', 'edit', 'db', or 'display'. Default 'raw'.
    Required:
    Default: 'raw'
返回值
  • (WP_Post|array|null) Type corresponding to $output on success or null on failure. When $output is OBJECT, a `WP_Post` instance is returned.
定义位置
相关方法
get_postsedit_postnext_postget_postdatanext_posts
引入
1.5.1
弃用
-

get_post函数用于通过其ID检索特定的post对象。它接受一个参数,即post的ID。它返回一个包含所有文章数据的文章对象,如文章标题、内容、日期和作者。

给定一个文章ID或文章对象,检索文章数据。

参见sanitize_post()中的可选$filter值。另外,参数`$post`必须以变量形式给出,因为它是以引用形式传递的。

function get_post( $post = null, $output = OBJECT, $filter = 'raw' ) {
	if ( empty( $post ) && isset( $GLOBALS['post'] ) ) {
		$post = $GLOBALS['post'];
	}

	if ( $post instanceof WP_Post ) {
		$_post = $post;
	} elseif ( is_object( $post ) ) {
		if ( empty( $post->filter ) ) {
			$_post = sanitize_post( $post, 'raw' );
			$_post = new WP_Post( $_post );
		} elseif ( 'raw' === $post->filter ) {
			$_post = new WP_Post( $post );
		} else {
			$_post = WP_Post::get_instance( $post->ID );
		}
	} else {
		$_post = WP_Post::get_instance( $post );
	}

	if ( ! $_post ) {
		return null;
	}

	$_post = $_post->filter( $filter );

	if ( ARRAY_A === $output ) {
		return $_post->to_array();
	} elseif ( ARRAY_N === $output ) {
		return array_values( $_post->to_array() );
	}

	return $_post;
}

常见问题

FAQs
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