The excerpt_length filter allows you to set the length of the excerpt.
Examples
If you want remove excerpt on category pages:
add_filter( 'excerpt_length','lh_custom_category_excerpt_length', 1000 );
function lh_custom_category_excerpt_length( $length )
{
if ( is_category() ) {
return 0;
}
return $length;
}
Usage
Please refer to the Using Filters article to learn how to use this filter.
excerpt_length
excerpt_length