Widont

gistfile1.txt

<?php
/**
 * Add 'fix' for typographic widows
 * This is the same code used on wordpress.com
 *
 * @param type $str
 * @return string
 */
function theme_widont( $str = '' ) {

	$str = rtrim( $str );
	$space = strrpos( $str, ' ' );
	$count = substr_count( $str, ' ' );

	if ( $count <= 1 ) {
		return $str;
	}

	if ( false !== $space ) {
		$str = substr( $str, 0, $space ) . '&nbsp;' . substr( $str, $space + 1 );
	}

	return $str;

}

add_filter( 'the_title', 'theme_widont' );