undefined index fix

sections/user/edit.php

         <td>
           <ul class="options_list nobullet">
             <li>
-              <input type="radio" name="searchtype" id="search_type_simple" value="0"<?=$SiteOptions['SearchType'] == 0 ? ' checked="checked"' : ''?> />
+              <input type="radio" name="searchtype" id="search_type_simple" value="0"<?=$SiteOptions  ?? 'SearchType' == 0 ? ' checked="checked"' : ''?> />
               <label for="search_type_simple">Simple</label>
             </li>
             <li>
-              <input type="radio" name="searchtype" id="search_type_advanced" value="1"<?=$SiteOptions['SearchType'] == 1 ? ' checked="checked"' : ''?> />
+              <input type="radio" name="searchtype" id="search_type_advanced" value="1"<?=$SiteOptions ?? 'SearchType' == 1 ? ' checked="checked"' : ''?> />
               <label for="search_type_advanced">Advanced</label>
             </li>
           </ul>
         <td class="label tooltip" title="Enabling torrent grouping will place multiple formats of the same torrent group together beneath a common header."><strong>Torrent grouping</strong></td>
         <td>
           <div class="option_group">
-            <input type="checkbox" name="disablegrouping" id="disablegrouping"<?=$SiteOptions['DisableGrouping2'] == 0 ? ' checked="checked"' : ''?> />
+            <input type="checkbox" name="disablegrouping" id="disablegrouping"<?=$SiteOptions ?? 'DisableGrouping2' == 0 ? ' checked="checked"' : ''?> />
             <label for="disablegrouping">Enable torrent grouping</label>
           </div>
         </td>
           <div class="option_group">
             <ul class="options_list nobullet">
               <li>
-                <input type="radio" name="torrentgrouping" id="torrent_grouping_open" value="0"<?=$SiteOptions['TorrentGrouping'] == 0 ? ' checked="checked"' : ''?> />
+                <input type="radio" name="torrentgrouping" id="torrent_grouping_open" value="0"<?=$SiteOptions ?? 'TorrentGrouping' == 0 ? ' checked="checked"' : ''?> />
                 <label for="torrent_grouping_open">Open</label>
               </li>
               <li>
-                <input type="radio" name="torrentgrouping" id="torrent_grouping_closed" value="1"<?=$SiteOptions['TorrentGrouping'] == 1 ? ' checked="checked"' : ''?> />
+                <input type="radio" name="torrentgrouping" id="torrent_grouping_closed" value="1"<?=$SiteOptions ?? 'TorrentGrouping' == 1 ? ' checked="checked"' : ''?> />
                 <label for="torrent_grouping_closed">Closed</label>
               </li>
             </ul>
       <tr id="tor_snatched_tr">
         <td class="label tooltip" title="Enabling the snatched torrents indicator will display &quot;Snatched!&quot; next to torrents you've snatched."><strong>Snatched torrents indicator</strong></td>
         <td>
-          <input type="checkbox" name="showsnatched" id="showsnatched"<?=!empty($SiteOptions['ShowSnatched']) ? ' checked="checked"' : ''?> />
+          <input type="checkbox" name="showsnatched" id="showsnatched"<?=!empty($SiteOptions ?? 'ShowSnatched') ? ' checked="checked"' : ''?> />
           <label for="showsnatched">Enable snatched torrents indicator</label>
         </td>
       </tr>
       <tr id="tor_magnet_tr">
         <td class="label tooltip" title="Magnet links should only be used on clients with DHT disabled globally"><strong>Magnet links</strong></td>
         <td>
-          <input type="checkbox" name="showmagnets" id="showmagnets"<?=!empty($SiteOptions['ShowMagnets']) ? ' checked="checked"' : '' ?> />
+          <input type="checkbox" name="showmagnets" id="showmagnets"<?=!empty($SiteOptions ?? 'ShowMagnets') ? ' checked="checked"' : '' ?> />
           <label for="showmagnets">Show magnet links</label>
         </td>
       </tr>
           <ul class="options_list nobullet">
             <li>
               <input type="hidden" name="coverart" value="" />
-              <input type="checkbox" name="coverart" id="coverart"<?=!isset($SiteOptions['CoverArt']) || $SiteOptions['CoverArt'] ? ' checked="checked"' : ''?> />
+              <input type="checkbox" name="coverart" id="coverart"<?=!isset($SiteOptions['CoverArt']) || $SiteOptions ?? 'CoverArt' ? ' checked="checked"' : ''?> />
               <label for="coverart">Enable cover artwork</label>
             </li>
             <li>
-              <input type="checkbox" name="show_extra_covers" id="show_extra_covers"<?=$SiteOptions['ShowExtraCovers'] ? ' checked="checked"' : ''?> />
+              <input type="checkbox" name="show_extra_covers" id="show_extra_covers"<?=$SiteOptions ?? 'ShowExtraCovers' ? ' checked="checked"' : ''?> />
               <label for="show_extra_covers">Enable additional cover artwork</label>
             </li>
           </ul>
         <td class="label tooltip" title="This option allows you to change the number of album covers to display within a single collection page."><strong>Cover art (collections)</strong></td>
         <td>
           <select name="collagecovers" id="collagecovers">
-            <option value="10"<?=$SiteOptions['CollageCovers'] == 10 ? ' selected="selected"' : ''?>>10</option>
-            <option value="25"<?=($SiteOptions['CollageCovers'] == 25 || !isset($SiteOptions['CollageCovers'])) ? ' selected="selected"' : ''?>>25 (default)</option>
-            <option value="50"<?=$SiteOptions['CollageCovers'] == 50 ? ' selected="selected"' : ''?>>50</option>
-            <option value="100"<?=$SiteOptions['CollageCovers'] == 100 ? ' selected="selected"' : ''?>>100</option>
-            <option value="1000000"<?=$SiteOptions['CollageCovers'] == 1000000 ? ' selected="selected"' : ''?>>All</option>
-            <option value="0"<?=($SiteOptions['CollageCovers'] === 0 || (!isset($SiteOptions['CollageCovers']) && $SiteOptions['HideCollage'])) ? ' selected="selected"' : ''?>>None</option>
+            <option value="10"<?=$SiteOptions ?? 'CollageCovers' == 10 ? ' selected="selected"' : ''?>>10</option>
+            <option value="25"<?=($SiteOptions ?? 'CollageCovers' == 25 || !isset($SiteOptions['CollageCovers'])) ? ' selected="selected"' : ''?>>25 (default)</option>
+            <option value="50"<?=$SiteOptions ?? 'CollageCovers' == 50 ? ' selected="selected"' : ''?>>50</option>
+            <option value="100"<?=$SiteOptions ?? 'CollageCovers' == 100 ? ' selected="selected"' : ''?>>100</option>
+            <option value="1000000"<?=$SiteOptions ?? 'CollageCovers' == 1000000 ? ' selected="selected"' : ''?>>All</option>
+            <option value="0"<?=($SiteOptions ?? 'CollageCovers' === 0 || (!isset($SiteOptions['CollageCovers']) && $SiteOptions['HideCollage'])) ? ' selected="selected"' : ''?>>None</option>
           </select>
           covers per page
         </td>
         <td class="label tooltip" title="Autocomplete will try to predict the word or phrase that you're typing. Selecting &quot;Everywhere&quot; will enable autocomplete on artist and tag fields across the site. Selecting &quot;Searches only&quot; will enable autocomplete in searches."><strong>Autocompletion</strong></td>
         <td>
           <select name="autocomplete">
-            <option value="0"<?=empty($SiteOptions['AutoComplete']) ? ' selected="selected"' : ''?>>Everywhere</option>
-            <option value="2"<?=$SiteOptions['AutoComplete'] === 2 ? ' selected="selected"' : ''?>>Searches only</option>
-            <option value="1"<?=$SiteOptions['AutoComplete'] === 1 ? ' selected="selected"' : ''?>>Disable</option>
+            <option value="0"<?=empty($SiteOptions ?? 'AutoComplete') ? ' selected="selected"' : ''?>>Everywhere</option>
+            <option value="2"<?=$SiteOptions ?? 'AutoComplete' === 2 ? ' selected="selected"' : ''?>>Searches only</option>
+            <option value="1"<?=$SiteOptions ?? 'AutoComplete' === 1 ? ' selected="selected"' : ''?>>Disable</option>
           </select>
         </td>
       </tr>
         <td>
           <ul class="nobullet">
             <li>
-              <input type="checkbox" name="hide_lolicon" id="hide_lolicon"<?=($SiteOptions['HideLolicon']) ? ' checked="checked"' : ''?> />
+              <input type="checkbox" name="hide_lolicon" id="hide_lolicon"<?=($SiteOptions ?? 'HideLolicon') ? ' checked="checked"' : ''?> />
               <label for="hide_lolicon">Hide results with Lolicon, Shotacon, or Toddlercon</label>
             </li>
             <li>
-              <input type="checkbox" name="hide_scat" id="hide_scat"<?=($SiteOptions['HideScat']) ? ' checked="checked"' : ''?> />
+              <input type="checkbox" name="hide_scat" id="hide_scat"<?=($SiteOptions ?? 'HideScat') ? ' checked="checked"' : ''?> />
               <label for="hide_scat">Hide results with Scat</label>
             </li>
             <li>
-              <input type="checkbox" name="hide_snuff" id="hide_snuff"<?=($SiteOptions['HideSnuff']) ? ' checked="checked"' : ''?> />
+              <input type="checkbox" name="hide_snuff" id="hide_snuff"<?=($SiteOptions ?? 'HideSnuff') ? ' checked="checked"' : ''?> />
               <label for="hide_snuff">Hide results with Snuff</label>
             </li>
           </ul>
         <td class="label tooltip" title="This option allows you to set the desired number of displayed posts per page within forum threads."><strong>Posts per page (forums)</strong></td>
         <td>
           <select name="postsperpage" id="postsperpage">
-            <option value="25"<?=$SiteOptions['PostsPerPage'] == 25 ? ' selected="selected"' : ''?>>25 (default)</option>
-            <option value="50"<?=$SiteOptions['PostsPerPage'] == 50 ? ' selected="selected"' : ''?>>50</option>
-            <option value="100"<?=$SiteOptions['PostsPerPage'] == 100 ? ' selected="selected"' : ''?>>100</option>
+            <option value="25"<?=$SiteOptions ?? 'PostsPerPage' == 25 ? ' selected="selected"' : ''?>>25 (default)</option>
+            <option value="50"<?=$SiteOptions ?? 'PostsPerPage' == 50 ? ' selected="selected"' : ''?>>50</option>
+            <option value="100"<?=$SiteOptions ?? 'PostsPerPage' == 100 ? ' selected="selected"' : ''?>>100</option>
           </select>
           posts per page
         </td>
       <tr id="comm_emot_tr">
         <td class="label tooltip" title="Emoticons are small images which replace traditional text-based &quot;smileys&quot; like :) or :("><strong>Emoticons</strong></td>
         <td>
-          <input type="checkbox" name="disablesmileys" id="disablesmileys"<?=!empty($SiteOptions['DisableSmileys']) ? ' checked="checked"' : ''?> />
+          <input type="checkbox" name="disablesmileys" id="disablesmileys"<?=!empty($SiteOptions ?? 'DisableSmileys') ? ' checked="checked"' : ''?> />
           <label for="disablesmileys">Disable emoticons</label>
         </td>
       </tr>
         <td class="label tooltip" title="This option allows you to disable all avatars or show all avatars with a placeholder for users without avatars." data-title-plain="This option allows you to disable all avatars or show all avatars with a placeholder for users without avatars."><strong>Avatar display (posts)</strong></td>
         <td>
           <select name="disableavatars" id="disableavatars">
-            <option value="1"<?=$SiteOptions['DisableAvatars'] == 1 ? ' selected="selected"' : ''?>>Disable avatars</option>
-            <option value="0"<?=$SiteOptions['DisableAvatars'] == 0 ? ' selected="selected"' : ''?>>Show avatars</option>
+            <option value="1"<?=$SiteOptions ?? 'DisableAvatars' == 1 ? ' selected="selected"' : ''?>>Disable avatars</option>
+            <option value="0"<?=$SiteOptions ?? 'DisableAvatars' == 0 ? ' selected="selected"' : ''?>>Show avatars</option>
           </select>
         </td>
       </tr>