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I am currently hooking on the_content() but that goes through the Wordpress loop too. How can I only hook on the Single.php page?

Also, is there a way to only look on the first X posts in the Wordpress loop?

By the way, I am creating a plugin

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You want to add extra stuff to the end of the_content, but you only want it to happen when on single.php? –  Pippin Jun 28 '12 at 22:45
    
Yes. Also, I wanted to add something at the bottom of the content for the X most recent posts. –  Doug Jun 28 '12 at 22:50
    
You should probably expand your question a little more, because right now it doesn't make much sense. If you want to modify single.php, open up single.php and modify it. By its nature, single.php will only have a single post in the loop. To get other posts, you'll need a secondary loop after your main loop. –  SickHippie Jun 28 '12 at 22:52
    
I am creating a plugin. –  Doug Jun 28 '12 at 22:55

1 Answer 1

up vote 1 down vote accepted

This will handle appending the content to single posts:

function yourprefix_add_to_content( $content ) {

    if( is_single() ) {

        $content .= 'Your new content here';

    }

    return $content;
}
add_filter('the_content', 'yourprefix_add_to_content')
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