WooCommerce: How to Bulk Generate Coupons Without a Plugin

/**
 * @snippet       Bulk Generate Coupons @ WordPress Admin
 * @how-to        Get tutoraspire.com FREE
 * @author        Tutor Aspire
 * @compatible    WooCommerce 6
 * @donate $9     https://tutoraspire.com
 */

add_action( 'admin_init', 'tutoraspire_generate_coupons_admin' );

function tutoraspire_generate_coupons_admin() {
if ( isset( $_REQUEST['bb-gen-coupons'] ) ) {
if ( ! current_user_can( 'manage_woocommerce' ) ) {
wp_die( 'You do not have permission to bulk generate coupons' );
}
$number_of_coupons = 100; // DEFINE BULK QUANTITY
for ( $i = 1; $i set_code( $random_code );
$coupon->set_description( 'Coupon generated programmatically (' . $i . '/' . $number_of_coupons . ')' );
$coupon->set_discount_type( 'percent' );
$coupon->set_amount( 20 );
$coupon->set_minimum_amount( 1 );
$coupon->set_individual_use( true );
$coupon->set_product_categories( array( 54, 55 ) );
$coupon->set_usage_limit_per_user( 1 );
$coupon->save();
}
}
}