WordPressでloopの外でもexcerptを出力するプラグイン。

This plugin will allow you to output the post’s excerpt outside the loop. Still in beta, use at your own risk!

Download:return-excerpt

Basic usage:

if(function_exists('return_excerpt'))
    echo return_excerpt($post_id);

additionally,

echo return_excerpt($post->ID, array('length'=>'10', 'more'=>'motto'));

will allow you to change the excerpt length and “more” content.