How to filter post titles

If you know that you will want to apply a filter to all of your post titles in WordPress, such as forcing uppercase, lowercase, or title capitalization, you can use a filter to do so. The filter below will force a title to lowercase as the post is saved:

if ( !function_exists( 'ucc_post_title_filter' ) ) :
  function ucc_post_title_filter( $data ) {
    $title = $data['post_title'];

    $title = strtolower( $title );
    $data['post_title'] = $title;

    return( $data );
  add_filter( 'wp_insert_post_data' , 'ucc_post_title_filter' );

On line 5, strtolower() can be exchanged for any text-transforming function.

Links For 16 June 2008

[Doughnut muffins](
: A best-of-both-worlds recipe. Taste of doughnuts, ease of muffins.

[Luscious lemon slices](
: Recipe from “Mix & Bake” by Belinda Jeffery.

[The cheapest fruits and vegetables month-by-month](
: Month-by-month lists of seasonal fruits and vegetables.

[The best time to buy everything](
: Lists of when common foods and household items are generally on sale. (In-season foods, closeout household items.)

[Ten dollar meals](
: A variety of meal plans for under ten dollars.

: A cross-referenced code library of Open Source PHP projects.