Removing All Actions From Hook

removing-all-actions-from-hook

/**
 * Unhook all action with some exception on wp_head and wp_footer
 */
function fr_unhook_wp_head_footer(){
    global $wp_filter; // Where all the hooks and their actions are stored
    
    // Actions that should not be removed from the wp_head hook
    $wp_head_whitelist = array( 'wp_enqueue_scripts', 'wp_print_styles', 'wp_print_head_scripts' );

	// Unhook actions from wp_head
	foreach ( $wp_filter['wp_head'] as $priority => $wp_head_hooks ) { // Loop the hook. Hook's actions are categorized as multidimensional array by priority
		if( is_array( $wp_head_hooks ) ){ // Check if this is an array
			foreach ( $wp_head_hooks as $wp_head_hook ) { // Loop the hook

				if( !is_array( $wp_head_hook['function'] ) && !in_array( $wp_head_hook['function'], $wp_head_whitelist ) ){ // Check the action against the whitelist
					remove_action( 'wp_head', $wp_head_hook['function'], $priority ); // Remove the action from the hook
				}
			}
		}
	}
    
    // This is basically a repeatation of what have been done above, only for wp_footer
	
	// Action that should not be removed from wp_footer hook
	$wp_footer_whitelist = array( 'wp_print_footer_scripts', 'wc_print_js', 'wp_print_media_templates' );

	// Unhook actions from wp_footer
	foreach ($wp_filter['wp_footer'] as $priority => $wp_footer_hooks ) {
		if( is_array( $wp_footer_hooks ) ){
			foreach ( $wp_footer_hooks as $wp_footer_hook ) {

				if( !is_array( $wp_footer_hook['function'] ) && !in_array( $wp_footer_hook['function'], $wp_footer_whitelist ) ){
					remove_action( 'wp_footer', $wp_footer_hook['function'], $priority );
				}

			}
		}
	}    

}
add_action( 'wp', 'fr_unhook_wp_head_footer' );

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