Getting the post ID outside outside of the Wordpress loop - wordpress

Question

So I have a snippet of code that grabs the categories and their coinciding posts and lists them outside of the loop (Below). I've been trying to get the post to link to #post-[ID] instead of the permalink - but I keep failing. Can anyone help?
<ul id="sidebar">
<?php
foreach( get_categories('orderby=ID&order=desc') as $cat ) :
if( !$cat->parent ) {
echo '<li class="title"><h2>' . $cat->name . '</h2>';
echo '<ul>';
process_cat_tree( $cat->term_id );
}
endforeach;
wp_reset_query(); //to reset all trouble done to the original query
//
function process_cat_tree( $cat) {
$args = array('category__in' => array( $cat ), 'numberposts' => -1);
$cat_posts = get_posts( $args );
$id = $post->ID;
global $post;
if( $cat_posts ) :
foreach( $cat_posts as $menuPost ) :
echo '<li';
if ( $menuPost->ID == $post->ID ) { echo ' class="active"'; }
echo '>';
echo '' . $menuPost->post_title . '';
echo '</li>';
endforeach;
endif;
echo '</ul></li>';
}
?>
The above code is outputting UL/LI tags like this:
CATEGORY
Post
Post
Post
CATEGORY
Post
Post
Post
CATEGORY
Post
Post
Post

Answer 1

Admittedly, I don't exactly understand what you mean by "linking to #post-[ID]", but going with the question title:
If you use get_permalink() when echoing the link, you will get the permalink - that's just what that function does.
Use get_the_ID() instead, if you want the post-ID returned, or the_ID() if you want it displayed (the_ID() is the same as echo get_the_ID()).
Edited from here:
If you're otherwise happy with the above code, changing
echo '' . $menuPost->post_title . '';
to
echo '' . $menuPost->post_title . '';
ought to do it.
However, I'd go about it like so:
echo '<ul>';
$cat_args = array(
'orderby' => 'name',
'order' => 'ASC'
);
$categories = get_categories($cat_args);
foreach($categories as $category) {
echo '<li class="title"><h2>' . $category->name . '</h2><ul>';
// query posts of that category:
$query_args = array(
'cat' => $category->cat_ID,
'posts_per_page' => -1
);
$your_query = new WP_Query( $query_args );
// loop through them:
while ( $your_query->have_posts() ) : $your_query->the_post();
echo '<li><a href="#post-';
the_ID();
echo '">';
the_title();
echo '</a></li>';
endwhile;
echo '</ul></li>';
// Reset Post Data
wp_reset_postdata();
}
echo '</ul>';