WordPress at a glance
function is not described

start_wp() WP 1.0.1

Deprecated in 1.5.0. It is no longer supported and can be removed in future releases. It is recommended to replace this function with the same one.

Sets up the WordPress Loop.

Use The Loop instead.

No Hooks.

Return

Nothing (null).

Usage

start_wp();

Code of start wp: wp-includes/deprecated.php VER 5.1.1

<?php
function start_wp() {
	global $wp_query;

	_deprecated_function( __FUNCTION__, '1.5.0', __('new WordPress Loop') );

	// Since the old style loop is being used, advance the query iterator here.
	$wp_query->next_post();

	setup_postdata( get_post() );
}