WordPress at a glance
action is not described

deactivate_(plugin) action-hook . WP 2.0.0

Fires as a specific plugin is being deactivated.

This hook is the "deactivation" hook used internally by register_deactivation_hook(). The dynamic portion of the hook name, $plugin, refers to the plugin basename.

If a plugin is silently deactivated (such as during an update), this hook does not fire.

Usage

add_action( 'deactivate_(plugin)', 'action_function_name_5365' );
function action_function_name_5365( $network_deactivating ){
	// action...
}
$network_deactivating(true/false)
Whether the plugin is deactivated for all sites in the network or just the current site. Multisite only.
Default: false

Changelog

Since 2.0.0 Introduced.

Where the hook is called

deactivate_plugins()
deactivate_(plugin)
wp-admin/includes/plugin.php 792
do_action( "deactivate_{$plugin}", $network_deactivating );

Where the hook is used (in WP core)

Usage not found!