No.Insert Html Snippet allows you to create shortcodes corresponding to html snippets. You can create a shortcode corresponding to any random HTML code such as ad codes (adsense or any adserver), javascript codes (addthis), video embedding codes, css codes etc.
If you want to execute php code only on custom post type,you can use
is_singular( $post_types ) function.For example if you want to display something only on custom post type book, then you can use like following
if(is_singular( ‘book’ )) {
echo “Hii”;
}
You can use the PHP newline characters \n or \r\n to create a new line inside the source code. However, if you want the line breaks to be visible in the browser too, you can use the PHP nl2br() function which inserts HTML line breaks before all newlines in a string.
