In WordPress, bloginfo and get_bloginfo are use for get information about your site, which can then be used anywhere within a template file for either Print Site information to the Browser or use in your PHP code respectively.
Difference between bloginfo() and get_bloginfo() in WP
– bloginfo() always prints a result to the browser.
– get_bloginfo() use for need the values for use in PHP code instead of Print in Browser,
In short, bloginfo print value where as get_blogine do not print value but to print their value we need to use either echo, print or else