February 12, 2011 
Definition:
function wp_rss( $url, $num_items = -1 ) {}
Display all RSS items in a HTML ordered list.
Parameters
- string $url: URL of feed to display. Will not auto sense feed URL.
- int $num_items: Optional. Number of items to display, default is all.
Source code
function wp_rss( $url, $num_items = -1 ) {
if ( $rss = fetch_rss( $url ) ) {
echo '<ul>';
if ( $num_items !== -1 ) {
$rss->items = array_slice( $rss->items, 0, $num_items );
}
foreach ( (array) $rss->items as $item ) {
printf(
'<li><a href="%1$s" title="%2$s">%3$s</a></li>',
esc_url( $item['link'] ),
esc_attr( strip_tags( $item['description'] ) ),
esc_html( $item['title'] )
);
}
echo '</ul>';
} else {
_e( 'An error has occurred, which probably means the feed is down. Try again later.' );
}
}
4069
A HitchHackers guide through WordPress 
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