Try this:
<?php
global $headerinclude, $header, $theme, $footer, $lang;
my_page_lang();
$link = my_page_url($pages['url']);
$title = $pages['name'];
if($mybb->input['action'] == 'do_submit' && $mybb->request_method == 'post')
{
verify_post_check($mybb->input['my_post_key']);
if($mybb->input['uid'] == '')
{
$errors[] = $lang->page_input_error_empty;
}
else
{
$query = $db->simple_select('users', '*' , 'uid = ' . $mybb->input['uid']);
if($db->num_rows($query) != 1)
{
$errors[] = $lang->page_input_error_select;
}
}
if(count($errors) > 0)
{
$errors = inline_error($errors);
}
else
{
$result = $db->fetch_array($query);
$userinfo_title = $lang->sprintf($lang->page_userinfo, $result['username']);
eval("\$userinfo = \"" . my_page_template('userinfo') . "\";");
}
}
elseif($mybb->input['uid'] && $mybb->request_method == 'get')
{
error($lang->sprintf($lang->page_input_error_get, $link));
}
add_breadcrumb($title);
eval("\$page = \"" . my_page_template('page') . "\";");
output_page($page);
function my_page_url($url, $parameters = false)
{
if(is_array($parameters))
{
foreach($parameters as $key => $val)
{
$query .= '&' . $key . '=' . $val;
}
}
$basename = basename(getenv('REQUEST_URI'));
if(my_strpos($basename, 'page=' . $url))
{
$url_string = 'misc.php?page=' . $url . $query;
}
else
{
$url_string = my_substr($basename, 0, my_strpos($basename, '?'));
if(isset($query))
{
$url_string .= '?' . my_substr($query, 1);
}
}
$url_string = htmlspecialchars_uni($url_string);
return $url_string;
}
function my_page_lang()
{
global $lang;
$l['page_input_uid'] = 'ID des Benutzers eingeben:';
$l['page_input_submit'] = 'Benutzerinformationen anzeigen';
$l['page_input_error_empty'] = 'Keine ID eingegeben.';
$l['page_input_error_select'] = 'Die eingegebene ID gehört zu keinem Benutzer.';
$l['page_input_error_get'] = 'Die ID des Benutzers darf nicht per Adresszeile übergeben werden. Bitte das <a href="{1}">Formular</a> dafür verwenden!';
$l['page_userinfo'] = 'Benutzerinformationen von {1}';
$l['page_userinfo_value'] = 'Benutzerinformation:';
foreach($l as $key => $val)
{
if(!$lang->$key)
{
$lang->$key = $val;
}
}
}
function my_page_template($template)
{
$templates = array
(
'page' => '<html>
<head>
<title>{$title}</title>
<meta name="description" content="{$description}" />
<link rel="canonical" href="{$mybb->settings[bburl]}/{$link}" />
{$headerinclude}
</head>
<body>
{$header}
{$errors}
{$userinfo}
<form action="{$link}" method="post">
<input type="hidden" name="my_post_key" value="{$mybb->post_code}" />
<input type="hidden" name="action" value="do_submit" />
<table border="0" cellspacing="{$theme[borderwidth]}" cellpadding="{$theme[tablespace]}" class="tborder">
<thead>
<tr>
<td class="thead" colspan="2"><strong>{$title}</strong></td>
</tr>
</thead>
<tbody>
<tr>
<td class="trow1" width="20%" valign="top"><strong>{$lang->page_input_uid}</strong></td>
<td class="trow1"><input type="text" class="textbox" name="uid" size="40" maxlength="10" tabindex="1" /></td>
</tr>
</tbody>
</table>
<br />
<div style="text-align: center;"><input type="submit" class="button" name="submit" value="{$lang->page_input_submit}" tabindex="2" /></div>
</form>
{$footer}
</body>
</html>',
'userinfo' => '<table border="0" cellspacing="{$theme[borderwidth]}" cellpadding="{$theme[tablespace]}" class="tborder">
<thead>
<tr>
<td class="thead" colspan="2"><strong>{$userinfo_title}</strong></td>
</tr>
</thead>
<tbody>
<tr>
<td class="trow1" width="20%" valign="top"><strong>{$lang->page_userinfo_value}</strong></td>
<td class="trow1">{$result[\'email\']}</td>
</tr>
</tbody>
</table>
<br />'
);
$templates[$template] = str_replace("\'", "'", addslashes($templates[$template]));
return $templates[$template];
}
?>
I outsourced the template and language strings into functions. Feel free to store them in a language file and/or a MyBB template.
The important part is the template
userinfo: At the moment it shows the email address of the user. Try changing
{$result[\'email\']} (line 146) to something different (for example: {$result[\'regip\']}).
If you want to work with the info before output it, add your code between line 35 and 36 (directly before eval).
Schöne Grüße aus Leipzig!