To insert HTML code in PHP codes, there are two ways. First way:
<?php
function foobar(){
echo '<p>This is some HTML which will be printed out (i.e. "echoed") to the screen</p>';
}
?>
Second way:
<?php
function foobar(){
// Some PHP codes
?>
<p>This is some HTML which will be printed out to the screen.</p>
<?php
// Some more PHP codes
}
?>
To prevent the slider from being displayed in excerpts, you can use the is_singular() conditional:
function graphene_custom_content_related_posts_slider(){
if( function_exists('get_related_posts_slider') && is_singular() ){
get_related_posts_slider();
}
}
add_action( 'graphene_after_post_content', 'graphene_custom_content_related_posts_slider' );
That way, the slider will only be displayed on singular pages, i.e. single post page, single page page, single attachment page.
