What is the difference between `wp_die()` and `die()` / `exit()` in WordPress?

Question

WordPress Fundamental — Hard

What is the difference between `wp_die()` and `die()` / `exit()` in WordPress?

Accepted Answer

wp_die() in WordPress provides more functionality than die()/exit() by formatting error messages, sending correct HTTP headers, handling AJAX requests, and allowing extensibility through the wp_die action. On the other hand, die()/exit() simply terminates without any WordPress context.