There have been numerous times when I needed the filter capabilities of the_content, but I didn’t want other plugin and/or theme authors to be able to hook into it and add in their own stuff.
Here’s a code snippet I use quite regularly (please add in your own custom prefix).
<?php
/* Filter for the content - Custom */
add_action( 'init', 'city_the_content', 1 );
function city_the_content() {
//Create our own version of the_content so that others can't accidentally loop into our output - Taken from default-filters.php, shortcodes.php, and media.php
if ( !has_filter( 'city_the_content', 'wptexturize' ) ) {
add_filter( 'city_the_content', 'wptexturize' );
add_filter( 'city_the_content', 'convert_smilies' );
add_filter( 'city_the_content', 'convert_chars' );
add_filter( 'city_the_content', 'wpautop' );
add_filter( 'city_the_content', 'shortcode_unautop' );
add_filter( 'city_the_content', 'prepend_attachment' );
$vidembed = new WP_Embed();
add_filter( 'city_the_content', array( &$vidembed, 'run_shortcode'), 8 );
add_filter( 'city_the_content', array( &$vidembed, 'autoembed'), 8 );
add_filter( 'city_the_content', 'do_shortcode', 11);
} //end has_filter
} //end city_the_content
?>
Some sample use-cases:
- Run on excerpts
- Run on Widget text output
- Run on just about any text, really
It applies the same formatting rules, and even includes the fancy oEmbed capabilities.
Enjoy.
