add custom fields to the Leaky Paywall registration form

custom-fields-leaky-paywall.php

<?php 

// add fields to registration form
add_action( 'leaky_paywall_after_password_registration_field', 'zeen101_custom_registration_fields' );
function zeen101_custom_registration_fields() {
  ?>
  	<div class="form-row">
		<label>Company</label>
  		<input type="text" value="" name="company">
	</div>

 	<div class="form-row">
		<input type="checkbox" checked id="subscribeNews" name="newsletter_subscribe" value="newsletter"> <label for="subscribeNews">Yes, sign me up for the newsletter</label>
	</div>
  <?php 
  
}

// save fields if user is created
add_action( 'leaky_paywall_form_processing', 'zeen101_custom_registration_fields_save', 10, 6 );
function zeen101_custom_registration_fields_save( $post_data, $user_id, $price, $mode, $site, $level_id ) {

  if ( $post_data['company'] ) {
    update_user_meta( $user_id, '_company', sanitize_text_field( $post_data['company'] ) );
  }
	
  if ( isset( $_POST['newsletter_subscribe'] ) ) {
  	update_user_meta( $user_id, '_newsletter_subscribe', 'yes' );
  } else {
	update_user_meta( $user_id, '_newsletter_subscribe', 'no' );
  }
			
}

// display the field in the user's WP admin profile
add_action( 'show_user_profile', 'zeen101_admin_custom_fields', 99 );
add_action( 'edit_user_profile', 'zeen101_admin_custom_fields', 99 );

function zeen101_admin_custom_fields( $user ) {

	$company = get_user_meta( $user->ID, '_company', true );
	$newsletter = get_user_meta( $user->ID, '_newsletter_subscribe', true );
	?>
  <table class="form-table">
	
	 <tr>
		<th><label>Company</label></th>

		<td>
			<?php echo $company; ?>

		</td>
	</tr>
	  
	<tr>
		<th><label>Signed Up For Newsletter</label></th>

		<td>
			<?php echo $newsletter; ?>

		</td>
	</tr>

  </table>

<?php 
}

// add custom field data to Leaky Paywall Reporting Tool export
add_filter( 'leaky_paywall_reporting_tool_meta', 'zeen101_reporting_tool_custom_fields_headers' );

function zeen101_reporting_tool_custom_fields_headers( $meta ) {
	$meta[] = 'company';
	$meta[] = 'newsletter_signup';
	return $meta;
}

add_filter( 'leaky_paywall_reporting_tool_user_meta', 'zeen101_reporting_tool_custom_fields_values', 10, 2 );

function zeen101_reporting_tool_custom_fields_values( $user_meta, $user_id ) {
	$company = get_user_meta( $user_id, '_company', true );
	$newsletter = get_user_meta( $user_id, '_newsletter_subscribe', true );
	$user_meta[$user_id]['company'] = $company;
	$user_meta[$user_id]['newsletter_signup'] = $newsletter;
	return $user_meta;
}