WordPress开发手册:get_post()

函数原型

get_post( int|WP_Post|null $post = null, string $output = OBJECT, string $filter = ‘raw’ ): WP_Post|array|null

函数描述

是否弃用

未弃用

函数参数

$post
int|WP_Post|null
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.

Default: null

$output
string
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

$filter
string
Optional

Type of filter to apply. Accepts 'raw', 'edit', 'db', or 'display'. Default 'raw'.

Default: 'raw'

函数返回值

函数位置

函数源码

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;
}

源码链接

WordPress
Github

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