Drupal 7 Block render

<?php
/* Print custom block content */
$block = module_invoke('block','block_view','1');
print render($block['content']);

/* Print the whole custom block (with divs, title etc.) */
$block = block_load('block','1');
print drupal_render(_block_get_renderable_array(_block_render_blocks(array($block))));

/* Print a views block */
$block = module_invoke('views','block_view','view_machinename-block_machinename');
print render($block);

/* Print a views block #2*/
$block = block_load('views', 'view_machinename-block_machinename');
$output = drupal_render(_block_get_renderable_array(_block_render_blocks(array($block))));
print $output;
?>