get_posts() WP 1.0

Retrieve list of latest posts or posts matching criteria.

The defaults are as follows:

No Hooks.

Return

WP_Post[]/Int[]. Array of post objects or post IDs.

Usage

get_posts( $args );

$args(array)

Arguments to retrieve posts. See WP_Query::parse_query() for all available arguments.

• $numberposts (int)
  Total number of posts to retrieve. Is an alias of $posts_per_page in WP_Query. Accepts -1 for all.
  Default: 5

• $category (int/string)
  Category ID or comma-separated list of IDs (this or any children). Is an alias of $cat in WP_Query.

• $include (array)
  An array of post IDs to retrieve, sticky posts will be included. Is an alias of $post__in in WP_Query.
  Default: empty array

• $exclude (array)
  An array of post IDs not to retrieve.
  Default: empty array

• $suppress_filters (true/false)
  Whether to suppress filters.
  Default: true

Default: null

Code of get posts: wp-includes/post.php ^{WP 5.2.2}

<?php
function get_posts( $args = null ) {
	$defaults = array(
		'numberposts'      => 5,
		'category'         => 0,
		'orderby'          => 'date',
		'order'            => 'DESC',
		'include'          => array(),
		'exclude'          => array(),
		'meta_key'         => '',
		'meta_value'       => '',
		'post_type'        => 'post',
		'suppress_filters' => true,
	);

	$r = wp_parse_args( $args, $defaults );
	if ( empty( $r['post_status'] ) ) {
		$r['post_status'] = ( 'attachment' == $r['post_type'] ) ? 'inherit' : 'publish';
	}
	if ( ! empty( $r['numberposts'] ) && empty( $r['posts_per_page'] ) ) {
		$r['posts_per_page'] = $r['numberposts'];
	}
	if ( ! empty( $r['category'] ) ) {
		$r['cat'] = $r['category'];
	}
	if ( ! empty( $r['include'] ) ) {
		$incposts            = wp_parse_id_list( $r['include'] );
		$r['posts_per_page'] = count( $incposts );  // only the number of posts included
		$r['post__in']       = $incposts;
	} elseif ( ! empty( $r['exclude'] ) ) {
		$r['post__not_in'] = wp_parse_id_list( $r['exclude'] );
	}

	$r['ignore_sticky_posts'] = true;
	$r['no_found_rows']       = true;

	$get_posts = new WP_Query;
	return $get_posts->query( $r );

}

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