如何使用php解析mailchimp动作网址？

Question

I'm working on a custom mailchimp form. So I only need action url from this mailchimp code.

<!-- Begin MailChimp Signup Form -->       
<form action="//xxxxx.us8.list-manage.com/subscribe/post?u=a79fe811eb786b41111be6f4c&id=41b3b956f1" method="post">  
<!--End mc_embed_signup-->

Can anyone tell me how to parse it using php without depending on third party parsing library?

Answer 1

More robust approach

$doc = new DOMDocument();
@$doc->loadHTML('<!-- Begin MailChimp Signup Form -->

    <form action="//xxxxx.us8.list-manage.com/subscribe/post?u=a79fe811eb786b41111be6f4c&id=41b3b956f1" method="post">

    <!--End mc_embed_signup-->');
$form = $doc->getElementsByTagName("form")->item(0);
$url = $form->getAttribute('action');
echo $url;