Solve the problem that when paying through the PHP Alipay interface, it will jump to a confirmation button page

After the PHP Alipay interface is successfully connected, I find that when paying, it will jump to a page with a confirm button. This greatly affects the user experience. How to solve it?

Check the code and find that alipayapi.php has this code:

$alipaySubmit =newAlipaySubmit($alipay_config);

$html_text = $alipaySubmit->buildRequestForm($parameter,"post","confirm");

echo $html_text;

The 'OK' button is returned by buildRequestForm. Find the place where this method is defined:
lib/alipay_submit.class.php

In the method

$sHtml = $sHtml."";

Change it to

$sHtml = $sHtml."";

or change it to

$sHtml = $sHtml."";

I integrated Alipay in my blog very early ：www.webyang.net/Index/alipay, I never paid attention to this problem ~ I solved it today.