Collect a website URL from users at signup in MemberPress. Allows you to store a different website URL with each user's subscription.

website-field.php

<?php
/*
Plugin Name: MemberPress Website Fields
Version: 1.0.0
Author: Caseproof, LLC
Author URI: http://caseproof.com
Description: Allow users to enter their website URL for each subscription they purchase
*/

//Signup form functions
function mepr_show_signup_fields() {
  ?>
    <div class="mp-form-row mepr_website_field">
      <div class="mp-form-label">
        <label>Website:*</label>
      </div>
      <input type="text" name="mepr_website_field" id="mepr_website_field" class="mepr-form-input" value="<?php echo (isset($_POST['mepr_website_field']))?stripslashes($_POST['mepr_website_field']):''; ?>" />
    </div>
  <?php
}

function mepr_validate_fields($errors, $user = null) {
  if(!isset($_POST['mepr_website_field']) || empty($_POST['mepr_website_field'])) {
    $errors[] = "You must enter a website URL";
  }

  return $errors;
}

function mepr_save_signup_fields($amount, $user, $prod_id, $txn_id) {
  if(!isset($_POST['mepr_website_field']) || empty($_POST['mepr_website_field'])) {
    return; //Nothing to do bro!
  }

  $txn            = new MeprTransaction($txn_id);
  $sub            = $txn->subscription();
  $website_fields = get_user_meta($user->ID, 'mepr_custom_website_fields', true);

  if(!$website_fields) {
    $website_fields = array();
  }

  if($sub !== false && $sub instanceof MeprSubscription) {
    $website_fields[] = array('txn_id'    => $txn_id,
                              'recurring' => true,
                              'sub_id'    => $sub->ID,
                              'website'   => stripslashes($_POST['mepr_website_field'])
    );
  }
  else {
    $website_fields[] = array('txn_id'    => $txn_id,
                              'recurring' => false,
                              'sub_id'    => 0,
                              'website'   => stripslashes($_POST['mepr_website_field'])
    );
  }

  update_user_meta($user->ID, 'mepr_custom_website_fields', $website_fields);
}

//Signup form hooks
add_action('mepr-before-coupon-field', 'mepr_show_signup_fields');
add_filter('mepr-validate-signup', 'mepr_validate_fields');
add_action('mepr-process-signup', 'mepr_save_signup_fields', 10, 4);

//Account Subscriptions table Functions
function mepr_add_subscriptions_th($user, $subs) {
  ?>
    <th>Site</th>
  <?php
}

function mepr_add_subscriptions_td($user, $sub, $txn, $is_recurring) {
  $website = 'None';
  $website_fields = get_user_meta($user->ID, 'mepr_custom_website_fields', true);

  if($website_fields) {
    foreach($website_fields as $f) {
      if($is_recurring && $sub->ID == $f['sub_id']) {
        $website = $f['website'];
        break;
      }
      elseif(!$is_recurring && $txn->id == $f['txn_id']) {
        $website = $f['website'];
        break;
      }
    }
  }

  ?>
    <td data-label="Website">
      <div class="mepr-account-website"><?php echo $website; ?></div>
    </td>
  <?php
}

//Account Subscriptions table hooks
add_action('mepr-account-subscriptions-th', 'mepr_add_subscriptions_th', 10, 2);
add_action('mepr-account-subscriptions-td', 'mepr_add_subscriptions_td', 10, 4);

//Admin Subscriptions table functions
function mepr_add_admin_subscriptions_cols($cols, $prefix, $lifetime) {
  $cols[$prefix.'site'] = 'Site';
  return $cols;
}

//NOT NEEDED
// function mepr_add_admin_subscriptions_sortable_cols($cols, $prefix, $lifetime) {
  // $cols[$prefix.'site'] = false;
  // return $cols;
// }

function mepr_add_admin_subscriptions_cell($column_name, $rec, $table, $attributes) {
  $user = new MeprUser($rec->user_id);

  if(strpos($column_name, '_site') !== false && (int)$user->ID > 0) {
    $website = 'None';
    $website_fields = get_user_meta($user->ID, 'mepr_custom_website_fields', true);

    if($website_fields) {
      foreach($website_fields as $f) {
        if(!$table->lifetime && $rec->ID == $f['sub_id']) {
          $website = $f['website'];
          break;
        }
        elseif($table->lifetime && $rec->ID == $f['txn_id']) {
          $website = $f['website'];
          break;
        }
      }
    }

    ?>
      <td <?php echo $attributes; ?>><?php echo $website; ?></td>
    <?php
  }
}

//Admin Subscriptions table hooks
add_filter('mepr-admin-subscriptions-cols', 'mepr_add_admin_subscriptions_cols', 10, 3);
// add_filter('mepr-admin-subscriptions-sortable-cols', 'mepr_add_admin_subscriptions_sortable_cols', 10, 3); //NOT NEEDED
add_action('mepr-admin-subscriptions-cell', 'mepr_add_admin_subscriptions_cell', 10, 4);

Oh great the completely undocumented mepr-process-signup 👀. Glad I found this gist and thanks so much for putting all this documentation together! 👍

Do you still work with MemberPress. I'm trying to create a custom payment cycle where I need to upgrade memberships and set next payment due date depending on if they pay first or second half of the year. Any idea what the best hook is to use?