edit_posts_per_page filter-hook . WP 2.8.0

Filters the number of posts displayed per page when specifically listing "posts".

Usage

add_filter( 'edit_posts_per_page', 'filter_function_name_6723', 10, 2 );
function filter_function_name_6723( $posts_per_page, $post_type ){
	// filter...

	return $posts_per_page;
}

$posts_per_page(int)

Number of posts to be displayed.
Default: 20

$post_type(string)

The post type.

Where the hook is called

$posts_per_page = apply_filters( 'edit_posts_per_page', $posts_per_page, $post_type );

$per_page = apply_filters( 'edit_posts_per_page', $per_page, $this->post_type );

$per_page = apply_filters( 'edit_posts_per_page', $per_page, $post_type );

Where the hook is used (in WP core)