debug (tag)

_doing_it_wrong()

Mark something as "done incorrectly". For example, the function is called incorrectly, the parameter is specified incorrectly, etc.

get_num_queries()

Gets the number of queries that have been made to the WordPress database before this function is called.

wp_debug_backtrace_summary()

Gets a trace with function names — a list of all functions/methods that were called to reach the current place in the code (from where this function was called).

wp_debug_mode()

Sets error handling settings in PHP based on the constants specified in the wp-config.php file of WordPress.

wp_get_development_mode()

Gets the current development mode: core, plugin, theme, all.

wp_get_environment_type()

Gets the current environment type: local, development, staging, production (default).

wp_is_development_mode()

Checks if the site is in the specified development mode: core, plugin, theme, all.