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: 否

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: 否

Default: OBJECT
(string)
$filter
Optional. Type of filter to apply. Accepts ‘raw’, ‘edit’, ‘db’, or ‘display’. Default ‘raw’.
Required: 否

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

wp-includes/post.php
, line 991

引入: 1.5.1

弃用: –

Retrieves post data given a post ID or post object.

See sanitize_post() for optional $filter values. Also, the parameter
`$post`, must be given as a variable, since it is passed by reference.

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;
}

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