Yaya

Thanks @joyously. In deed this fixed my problem. I moved it up earlier together with separate PHP tags but didn’t work. Only if in the same PHP tag as you suggested works.

sorry I pasted the wrong function name:
function validateimeiWidget()
should be
function checkifagree()

Have a look at plugins/paypal-express-checkout/views/frontendcode.php
You can add a checkbox there plus a small javascript that check if ticked when submit is enabled.
Code is currently as follows:

<form method="post" action="<?php echo $config->getItem('plugin_form_handler_url'); ?>">
  <input type="hidden" name="AMT" value="<?php echo $atts['amount']; ?>" />
  <input type="hidden" name="CURRENCYCODE" value="<?php echo $atts['currency']; ?>" />
  <?php if ( isset($atts['description']) ) { ?>
    <input type="hidden" name="PAYMENTREQUEST_0_DESC" value="<?php echo $atts['description']; ?>" />
  <?php } ?>

  <?php if ( isset($atts['tax']) ) { ?>
    <input type="hidden" name="TAXAMT" value="<?php echo $atts['tax']; ?>" />
  <?php } ?>

  <?php if ( isset($atts['shipping']) ) { ?>
    <input type="hidden" name="SHIPPINGAMT" value="<?php echo $atts['shipping']; ?>" />
  <?php } ?>

  <?php if ( isset($atts['handling']) ) { ?>
    <input type="hidden" name="HANDLINGAMT" value="<?php echo $atts['handling']; ?>" />
  <?php } ?>

  <?php if ( isset($atts['qty']) ) { ?>
    <input type="hidden" name="PAYMENTREQUEST_0_QTY" value="<?php echo $atts['qty']; ?>" />
  <?php } ?>

  <?php if ( isset($atts['return_url']) ) { ?>
    <input type="hidden" name="RETURN_URL" value="<?php echo $atts['return_url']; ?>" />
  <?php } ?>

  <?php if ( isset($atts['cancel_url']) ) { ?>
    <input type="hidden" name="CANCEL_URL" value="<?php echo $atts['cancel_url']; ?>" />
  <?php } ?>

  <input type="hidden" name="func" value="start" />

  <?php if ( isset($atts['button_style']) ) { ?>
    <?php if ( $atts['button_style'] == 'buy_now' ) { ?>
      <input type="image" value="" src="<?php echo $config->getItem('buy_now_button_src'); ?>" />
    <?php } elseif ( $atts['button_style'] == 'checkout' ) { ?>
      <input type="image" value="" src="<?php echo $config->getItem('checkout_button_src'); ?>" />
    <?php } ?>
  <?php } else { ?>
    <input type="submit" value="Pay with PayPal" />
  <?php } ?>
</form>

Add somewhere :

<input type="checkbox" name="terms" value="agree">Agree terms and conditions<br>

And add onsubmit=”return checkifagree()” also give it a name so the form header looks like this:

<form name="paypal_form" method="post" action="<?php echo $config->getItem('plugin_form_handler_url'); ?> " onsubmit="return checkifagree()">

finally define checkifagree() function and do the checks.

function validateimeiWidget()
{
var checkbox=document.forms["paypal_form"]["terms"].value;
   if( checkbox == ''agree")
       {
           return true;
      }
return false;

}

I am not a programmer; please test and bespoke the code as you wish; this is just to give you an idea. If you managed to get it to work please share your code ??

Sorry I posted the wrong section; it should be the following:

$fields = array(
              'USER' => urlencode(get_option('paypal_api_username')),
              'PWD' => urlencode(get_option('paypal_api_password')),
              'SIGNATURE' => urlencode(get_option('paypal_api_signature')),
              'VERSION' => urlencode('72.0'),
              'PAYMENTREQUEST_0_PAYMENTACTION' => urlencode('Sale'),
              'PAYERID' => urlencode($result['PAYERID']),
              'TOKEN' => urlencode($result['TOKEN']),
              'PAYMENTREQUEST_0_AMT' => urlencode($result['AMT']),
              'PAYMENTREQUEST_0_CURRENCYCODE' => urlencode($result['CURRENCYCODE']),
              'METHOD' => urlencode('DoExpressCheckoutPayment')
          );

Try with a fresh WordPress installation just to isolate the issue; this plugin works fine out of the box; i’m using it with 3.5.1 with no issues at all.
the api handler is located at wp-content/plugins/paypal-express-checkout/classes/paypalapi.php so that link should be accessible.

post a link to your website I might be able to help.

Hey mate. I had similar problems when I 1st installed this plugin.

The Pending issue is because of a missing line in the programming.

$fields = array(
              'USER' => urlencode(get_option('paypal_api_username')),
              'PWD' => urlencode(get_option('paypal_api_password')),
              'SIGNATURE' => urlencode(get_option('paypal_api_signature')),
              'VERSION' => urlencode('72.0'),
              'PAYMENTREQUEST_0_PAYMENTACTION' => urlencode('Sale'),
              'PAYMENTREQUEST_0_AMT0' => urlencode($_POST['AMT']),
              'PAYMENTREQUEST_0_AMT' => urlencode($_POST['AMT']),
              'PAYMENTREQUEST_0_ITEMAMT' => urlencode($_POST['AMT']),
              'ITEMAMT' => urlencode($_POST['AMT']),
              'PAYMENTREQUEST_0_CURRENCYCODE' => urlencode($_POST['CURRENCYCODE']),
              'RETURNURL' => urlencode($config->getItem('plugin_form_handler_url').'?func=confirm'),
              'CANCELURL' => urlencode(get_permalink(get_option('paypal_cancel_page'))),
              'METHOD' => urlencode('SetExpressCheckout')
          );

Compare it to yours in paypalapi.php and that should sort out the pending payments issue.

Do you really need the IPN?
this plugin will tell you if payment is a success but wont update any info like when the transaction is cleared.
I already have IPN implementation that update the transaction details into a table in the same database.

I installed short code plugin, created a new short code with the code above as contents. Now I have a custom shortcode to access PaypalExpressCheckout.

Now I started adding new fields to append user input to the payment history in the admin area.
So I can start using the short code as follows:
[paypal amount=10 currency=USD button_style=”buy_now” custom_field=”value”]

if someone think that this is not a good approach; please do advise. My end goal is pass user input to the order history.

No much of a support, so I decided to support my self.

I used the description field to pass a variable user input. This can not be done in short code.

<form name="form"  action="LINK TO WORDPRESS DIR/wp-content/plugins/paypal-express-checkout/form-handler.php" method="post" onsubmit="return validateForm()">
<input type="hidden" value="2.2" name="AMT">
<input type="hidden" value="USD" name="CURRENCYCODE">
<input type="text" name="PAYMENTREQUEST_0_DESC">
<input type="hidden" value="start" name="func">
<input type="submit" value="Pay with PayPal">
</form>

validateForm() will simply validate user input before submission.