field_get_items

gistfile1.txt

<?php

$node = node_load($nid);
      if ($image = field_get_items('node', $node, 'field_biography_image')) {
        // Check the author actually has an image.
        $image = current($image);
        $image_author = $image['uri'];
        $image_alt = check_plain($image['alt']);
        $image_title = check_plain($image['title']);
        // Run the image through image styles.
        $image_author = image_style_path('profile-small', $image_author);
      }