How to fill out a person's name, email address and SUNetID on a form behind WebAuth with PHP

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You want to pre-fill a form behind WebAuth with the currently logged in user's name, SUNetID, and e-mail address.


Use environment variables set by Apache's WebAuth LDAP module

A person's name, SUNetID and email address are automatically set in environment variables for you by Apache when behind WebAuth.

$sunetid = $_ENV['WEBAUTH_USER'];
$email   = $_ENV['WEBAUTH_LDAP_MAIL'];

Sample usage

It is often useful to pre-fill form fields to make your application more intelligent and reduce the burden of your users.

<form action="save.php" method="post">
  <p><label for="name">Name:</label><br/>
  <input type="text" name="name" id="name" value="<?=htmlspecialchars($name)?>" /></p>
  <p><label for="sunetid">SUNetID:</label><br/>
  <input type="text" name="sunetid" id="sunetid" value="<?=htmlspecialchars($sunetid)?>" /></p>
  <p><label for="email">E-mail address:</label><br/>
  <input type="text" name="email" id="email" value="<?=htmlspecialchars($email)?>" /></p>
  <input type="submit" name="submit" value="Save" />


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