Custom module for showing blocks in Drupal 6

timmyt_custom.info

name = Custom Module
description = Custom module
core = 6.x
dependencies[] = blog

timmyt_custom.module

<?php

/**
* Implementation of hook_block().
*
* Supplies some custom blocks:
*  Recent blog posts
*  Recent booklet posts
*  Static block of text
*/
function timmyt_custom_block($op = 'list', $delta = 0) {
  global $user;

  // Change how many blog titles you want to show here
  $number_blogs = 5;
  $number_booklets = 5;

  // This section tells drupal the name of your block that shows up on Site Building > Blocks
  if ($op == 'list') {
    $block[0]['info'] = t('Custom Module: Recent blog posts');
    $block[1]['info'] = t('Custom Module: Recent booklet posts'); // Copy this line for every new block you have.
    $block[2]['info'] = t('Name of another custom block');  //Notice how the number in $block[2] needs to be incremented for each one you have
    return $block;
  }
  // This section tells drupal the block title AND block content for your block
  else if ($op == 'view') {
    switch ($delta) {
      case 0: // Notice how the number here matches the number in $block[0] in the first section
        if (user_access('access content')) {
          $result = db_query_range(db_rewrite_sql("SELECT n.nid, n.title, n.created FROM {node} n WHERE n.type = 'blog' AND n.status = 1 ORDER BY n.created DESC"), 0, $number_blogs);
          if ($node_title_list = node_title_list($result)) {
            $block['content'] = $node_title_list;
            $block['content'] .= theme('more_link', url('blog'), t('Read the latest blog entries.'));
            $block['subject'] = t('Recent blog posts');
            return $block;
          }
        }

      case 1: // Notice how the number here matches the number in $block[1] in the first section
        if (user_access('access content')) {
          $result = db_query_range(db_rewrite_sql("SELECT n.nid, n.title, n.created FROM {node} n WHERE n.type = 'booklet' AND n.status = 1 ORDER BY n.created DESC"), 0, $number_booklets);
          if ($node_title_list = node_title_list($result)) {
            $block['content'] = $node_title_list;
            $block['content'] .= theme('more_link', url('blog'), t('Read the latest blog entries.'));
            $block['subject'] = t('Recent booklet posts');
            return $block;
          }
        }

      case 2: // Notice how the number here matches the number in $block[2] in the first section
        // You only need to lines if you want to show a static block of text
        $block['content'] = 'This is my blocks static content!';
        $block['subject'] = t('Title of another block');
        return $block;
    }
  }
}