Generate a discount code for Paid Memberships Pro (with Subscription Delay)

generate-discount-code-pmpro.php

<?php

  /**
  * Generate a discount code for Paid Memberships Pro. Call this function whenever you'd like to generate a new discount code.
  * Adjust the code accordingly for discount uses and level settings for the discount code.
  * Add this code to your PMPro Customizations Plugin  - https://www.paidmembershipspro.com/create-a-plugin-for-pmpro-customizations/
  * 
  * www.paidmembershipspro.com
  */
  
  function my_generate_pmpro_discount_code() {
     global $wpdb;

     $discount_code = array(
         "code" => pmpro_getDiscountCode(),
         "starts" => '2019-01-01',
         "expires" => '2020-12-31',
         "uses" => 5
     );

     // create the discount code first.
     $wpdb->insert(
         $wpdb->pmpro_discount_codes,
         array(
             'code' => $discount_code['code'],
             'starts' => $discount_code['starts'],
             'expires' => $discount_code['expires'],
             'uses' => $discount_code['uses']
         ),
         array(
             '%s',
             '%s',
             '%s',
             '%d'
         )
     );

     // Setup level data for the discount code.
     $level = array(
         "level_id" => 2,
         "initial_payment" => 0,
         "billing_amount" => 0,
         "cycle_number" => 0,
         "cycle_period" => '',
         "billing_limit" => '',
         "trial_amount" => '',
         "trial_limit" => '',
         'expiration_number' => '',
         'expiration_period' => '',
         'subscription_delay' => '2020-01-01'
     );
     
     // Get the code ID
     $SQL = "SELECT id from $wpdb->pmpro_discount_codes WHERE `code` = '" . esc_sql( $discount_code['code'] ) . "'";
     $code_id = $wpdb->get_var( $SQL );

     // Assign the discount code to a level etc.
     $wpdb->insert(
         $wpdb->pmpro_discount_codes_levels,
         array(
             'code_id' => $code_id,
             'level_id' => $level['level_id'],
             'initial_payment' => $level['initial_payment'],
             'billing_amount' => $level['billing_amount'],
             'cycle_number' => $level['cycle_number'],
             'cycle_period' => $level['cycle_period'],
             'billing_limit' => $level['billing_limit'],
             'trial_amount' => $level['trial_amount'],
             'trial_limit' => $level['trial_limit'],
             'expiration_number' => $level['expiration_number'],
             'expiration_period' => $level['expiration_period']
         ),
         array(
             '%d',
             '%d',
             '%f',
             '%f',
             '%d',
             '%s',
             '%d',
             '%f',
             '%d',
             '%d',
             '%s'
         )
     );
     
     // Only continue if Subscription Delays Add On is activated.
     if ( ! function_exists( 'pmpro_saveDCSDs' ) ) {
         return;
     }
     
     // Add discount code subscription delay.
     $delays = array( $level['level_id'] => $level['subscription_delay'] );
     pmpro_saveDCSDs( $code_id, $delays );
 }