Action to run custom code before the membership level changes.

/**
 * Action to run before a user's membership level changes.
 *
 * @since 1.4.0
 *
 * @param int.  $level_id   ID of the level changed to, or 0 when a
 * level is being removed.
 *
 * @param int.  $user_id.   ID of the user whose membership level 
 * is changing.
 *
 * @param object[] $old_levels  Array of active membership level 
 * objects held by the user immediately before this change.
 *                              
 * @param int|null $cancel_level ID of the specific level being
 * cancelled,or null when no specific level is being cancelled.
 */
do_action( 'pmpro_before_change_membership_level', $level_id, $user_id, $old_levels, $cancel_level );

Parameters

$level_id

int

$user_id

int

$old_levels

array

$cancel_level

int|null

Source

File: https://github.com/strangerstudios/paid-memberships-pro/blob/master/includes/functions.php

View in Source Code

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About Actions and Filters in PMPro

Hooks allow you to extend Paid Memberships Pro without editing any core plugin files. You can use a hook to program custom code that interacts with or modifies code in our plugin, Add Ons, your theme, and even WordPress itself.

There are two kinds of hooks: actions and filters.

• Action hooks allow you to run new custom code at pre-defined locations.
• Filter hooks allow you to change or extend existing code by modifying the data and returning it back to the software.

Click here to browse the full database of action and filter hooks available in Paid Memberships Pro. For help extending our Add Ons, refer to the individual Add On's documentation page for a list of available hooks.

For more developer-focused information about Paid Memberships Pro, check out the advanced developer topics documentation.