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action is not described

deprecated_function_run action-hook . WP 2.5.0

Fires when a deprecated function is called.


add_action( 'deprecated_function_run', 'action_function_name_392', 10, 3 );
function action_function_name_392( $function, $replacement, $version ){
	// action...
The function that was called.
The function that should have been called.
The version of WordPress that deprecated the function.

Where the hook is called

wp-includes/functions.php 5191
do_action( 'deprecated_function_run', $function, $replacement, $version );

Where in WP core the hook is used WordPress

wp-includes/rest-api.php 198
add_action( 'deprecated_function_run', 'rest_handle_deprecated_function', 10, 3 );