<?php get_template_directory_uri() ?> code example
Example: get_template_directory_uri
/* get logo or image */
<img src="<?php echo get_template_directory_uri(); ?>/images/logo.png" width="" height="" alt="" />
/* get logo or image */
<img src="<?php echo get_template_directory_uri(); ?>/images/logo.png" width="" height="" alt="" />