settings.php

<?php

// Function to add credits to cart (in main class)
public function listen_for_credit_purchases() {
  // if ( ! wp_verify_nonce( '' ) ) {
  // 	die( '-1' );
  // }

  $product_quantities = $_POST['product_quantity'];

  //check if this array has value
  if ( ! empty( $product_quantities ) ) {
    foreach ( $product_quantities as $name => $value ) {
      if ( $value > 0 ) {
        $product_id = $_POST['product_id'];

        WC()->cart->add_to_cart( $product_id, $value );
      }
    }
  }
}

// Purchase credits table
?>

<div class="tribe-community-events-content community-charging-purchase-credits">
	<form
		id="community-events-purchase-credits"
		action="<?php echo esc_url( wc_get_cart_url() ) ?>"
		class="<?php //echo esc_attr( implode( ' ', $cart_classes ) ); ?>"
		method="post"
		enctype='multipart/form-data'
		novalidate
	>
		<?php //if there are no credits on the account, don't show this table. Instead, show a message to go to the purchase page ?>
		<h2 class="tribe-community-events-list-title"><?php echo esc_html__( 'My Credits', 'tribe-ext-charge-for-submitting-featuring-events' ); ?></h2>

			<div class="tribe-responsive-table-container">
				<table id="tribe-community-credits-list" class="tribe-community-events-list my-events display responsive stripe">

					<thead>
						<tr>
								<th>
									<?php echo esc_html__( 'Quantity', 'tribe-ext-charge-for-submitting-featuring-events' ); ?>
								</th>

								<th>
									<?php echo esc_html__( 'Credit', 'tribe-ext-charge-for-submitting-featuring-events' ); ?>
								</th>

								<th>
									<?php echo esc_html__( 'Description', 'tribe-ext-charge-for-submitting-featuring-events' ); ?>
								</th>

								<th>
									<?php echo esc_html__( 'Cost', 'tribe-ext-charge-for-submitting-featuring-events' ); ?>
								</th>
						</tr>
					</thead>

					<tbody>
						<!-- add nonce -->
						<?php foreach ( $available_credits as $credit => $id ) { ?>
							<?php $product = wc_get_product( $id ); ?>

							<tr>
								<td>
									<input type="number" class="input-text qty text" name="product_quantity[<?php echo esc_attr( $id ); ?>]">
									<input type="hidden" name="product_id[]" value="<?php echo esc_attr( $id ); ?>">
								</td>
								<td>
									<?php echo get_the_title( $id );?>
								</td>

								<td>
									<?php //$myvar = $product->post->post_excerpt;?>
									<?php echo get_the_excerpt( $id ); ?>
								</td>

								<td>
									<?php echo $product->get_price();?>
								</td>
							</tr>
						<?php } ?>
						<tr>
							<td>
								<button
									type="submit"
									name="credits_add_to_cart"
									value="1"
									class="tribe-button tribe-button-primary add-new"
								>
									<?php esc_html__( 'Buy now', 'tribe-ext-charge-for-submitting-featuring-events' ); ?>
								</button>
							</td>
						</tr>
					</tbody>

				</table>
			</div>
			<div class="tribe-community tribe-community-no-credits">
				<i><p>No credits currently available message</p></i>
			</div>
	</form>
</div>