Create dropdown list post

by

Hey @Ruriko … its a 3 step action.

  1. get the current category ID
  2. get the posts for this specific category
  3. get the posts into a select menu

Please note that this code would use the first
category id altough you might assign several
categories to the same post.
. 

<?php 
    // FIRST CATEGORY NAME
    $category = get_the_category(); 
    $catID = $category[0]->term_id;
    $args = array(
        'numberposts' => 5, 
        'category' => $catID            
    );
    $catPosts = get_posts( $args );

    echo '<form method="POST">';
    echo '<select name="goToPost" onchange="document.location=this.value">';
    echo '<option value="">'.__('Relevent Posts', 'your_text_domain').'</option>';  
    foreach( $catPosts as $singlePost ) {
    echo '<option value="'.get_bloginfo('url').'/index.php?p='.$singlePost->ID.'">'.$singlePost->post_title.'</option>';
    };
    echo '</select>';
    echo '</form>';
?>

Hope this helps.
Cheers, Sagive.