Create N unique Eventbrite discount codes for an event

discount_upload.php

<?php
// load the API Client library
//  https://github.com/ryanjarvinen/eventbrite.php
include "Eventbrite.php"; 

// -------------- APPLICATION CONFIG ----------------- //
// Eventbrite API key (REQUIRED)
//   http://www.eventbrite.com/api/key/
$app_key = 'YOUR_APP_KEY_HERE';  
// Eventbrite user_key, required for reading/writing data
//   http://www.eventbrite.com/userkeyapi
$user_key = 'YOUR_USER_KEY_HERE';

// PLEASE RUN A TEST BEFORE CREATING YOUR DISCOUNT CODES
// "$test_mode = true" will do a test-run, new discount codes will be
//   printed to the screen without being created. 
// Running the script with "$test_mode = false" will create your discounts 
$test_mode = true;

// DEFAULT DISCOUNT SETTINGS
// See http://developer.eventbrite.com/doc/discount/discount_new/
//   for more information about these parameters
$discount_options = array(
    // The event_id that the discount applies toward
    'event_id' => 1905947770,
    // amount OR percent off
    'amount_off' => 25,
    // ticket_ids that the discount will apply toward
    'tickets' => '10206191,10206201,10206209,10207185',
    // quantity of discounts available
    'quantity_available' => '2'
);

// Generate random codes, or read codes in from a csv file?
//   for random codes, set "$csv_filename = false;" and adjust the variables in the next section,
//   to read in discount codes from a file, supply the filename here:
$csv_filename = false;

// VARIABLES FOR GENERATING N UNIQUE RANDOM DISCOUNT CODES
// (skip this section and supply a filename above if you want codes from a csv file)
$total_discount_codes = 1000;
$discount_prefix = 'DISC-';
$initial_offset = 5555;
$discount_increment = 667;

// ------------------ End of Config ------------------ //

// create, or simulate the creation of discount codes:
function create_discount( $eb_client, $discount_options, $test_mode ){
    print('adding code: ' . $discount_options['code'] . "\n");

    //create your discount codes -
    //   BE CAREFUL!
    if($test_mode != true){
        $resp = $eb_client->discount_new($discount_options);
        var_dump($resp);
    }
}

// Initialize the API client
$eb_client = new Eventbrite( $app_key, $user_key );

// Generate random codes based on a pattern, or read codes in from a CSV file:
if( $csv_filename ){
    if (($handle = fopen($csv_filename, "r")) !== FALSE) {
        while (($data = fgetcsv($handle, 1000, ",")) !== FALSE) {
            // Read each discount code number in from a csv file:
            $discount_options['code'] = $data[0];
            create_discount($eb_client, $discount_options, $test_mode);
        }
        fclose($handle);
    }
}else{
    for ( $i = $initial_offset; $i < $total_discount_codes + $initial_offset; $i++ ) {
        // generate a semi-unique discount code -
        //  you may want to tweak the $initial_offset or $base_discount_increment
        //  to make sure that your pattern is less guessable
        $random_num = $i * $discount_increment;
    
        //generate discount_new API params
        $discount_options['code'] = $discount_prefix . $random_num;
        create_discount($eb_client, $discount_options, $test_mode);
    }
}
?>