has_filter ( $tag, $function_to_check = false )

  • (string) tag The name of the filter hook.
  • (callable|bool) function_to_check Optional. The callback to check for. Default false.
  • (bool|int) If $function_to_check is omitted, returns boolean for whether the hook has anything registered. When checking a specific function, the priority of that hook is returned, or false if the function is not attached. When using the $function_to_check argument, this function may return a non-boolean value that evaluates to false (e.g.) 0, so use the === operator for testing the return value.
Defined at:


Check if any filter has been registered for a hook.

Related Functions

add_filter, has_term, apply_filters, wp_list_filter, has_category

Top Google Results

User discussions

wpseek mobile