Show block for specific content type programmatically

Question

How can I show a block on a specific content type programmatically? I want in my image the 'basic page' selected.

I used the xxx_block_info() function, should it set in here?

Answer 1

If you look at the node_module file it controls the node type visibility using the hook_block_list_alter.

So basically it might looks something like this. NOTE: This is a non tested version.

function hook_block_list_alter(&$blocks) {
  $node = menu_get_object();
  // list of all block deltas u want to apply this 
  $block_delta = array('deltas');
  foreach ($blocks as $key => $block) {
     if (!empty($node) && $node->type == 'page' && in_array($key, $block_delta)) {
       unset($blocks[$key]);
       continue;
     }
  } 
}

Answer 2

You can do like this:

function xxx_block_info() {
    $blocks['xxx'] = array(
    'info' => t('Xxx'),
    'visibility' => BLOCK_VISIBILITY_PHP,
    'pages' => '<?php global $node; if ($node->type == 'yyy') return TRUE; else return FALSE; ?>'
  );
}

Verify that the PHP filter module is enabled if you want to use BLOCK_VISIBILITY_PHP!