Eliminate some php notices caused by use of uninitialized variables

admin/addCategory.php

@@ -6,8 +6,9 @@ require_once(BASE."include/category.php");
 if(!$_SESSION['current']->hasPriv("admin"))
     util_show_error_page_and_exit();
 
+$aClean['iCatId'] = (isset($aClean['iCatId']) ? $aClean['iCatId'] : '');
 $oCat = new Category( $aClean['iCatId'] );
-if($aClean['sSubmit'])
+if(isset($aClean['sSubmit']))
 {
     $oCat->update($aClean['sName'],$aClean['sDescription'],$aClean['iParentId']);
     util_redirect_and_exit(apidb_fullurl("appbrowse.php?iCatId=".$oCat->iCatId));

admin/adminBugs.php

@@ -14,7 +14,7 @@ require_once(BASE."include/bugs.php");
 if(!$_SESSION['current']->hasPriv("admin"))
     util_show_error_page_and_exit("Insufficient privileges.");
 
-if ($aClean['sSub'])
+if (isset($aClean['sSub']))
 {
     if(($aClean['sSub'] == 'delete' ) && ($aClean['iBuglinkId']))
     {
@@ -34,15 +34,12 @@ if ($aClean['sSub'])
     apidb_header("Administer Bugs");
 
     $pageRange = 10;
-    $ItemsPerPage = 10;
+    
-    $currentPage = 1;
     $QueuedOnly = empty($aClean['sQueuedOnly'])? NULL: $aClean['sQueuedOnly'];
     $BugLinks = ($QueuedOnly == 'on')?getNumberOfQueuedBugLinks():getNumberOfBugLinks();
-    if($aClean['iItemsPerPage'])
-        $ItemsPerPage = $aClean['iItemsPerPage'];
 
-    if($aClean['iPage'])
+    $ItemsPerPage = isset($aClean['iItemsPerPage']) ? $aClean['iItemsPerPage'] : 10;
-        $currentPage = $aClean['iPage'];
+    $currentPage = isset($aClean['iPage']) ? $aClean['iPage'] : 1;
 
     $ItemsPerPage = min($ItemsPerPage,100);
     $totalPages = max(ceil($BugLinks/$ItemsPerPage),1);

admin/adminCommentView.php

@@ -12,13 +12,8 @@ apidb_header("Comments");
 /* display a range of 10 pages */
 $pageRange = 10;
 
-$ItemsPerPage = 10;
+$ItemsPerPage = isset($aClean['iItemsPerPage']) ? $aClean['iItemsPerPage'] : 10;
-$currentPage = 1;
+$currentPage = isset($aClean['iPage']) ? $aClean['iPage'] : 1;
-
-if($aClean['iItemsPerPage'])
-    $ItemsPerPage = $aClean['iItemsPerPage'];
-if($aClean['iPage'])
-    $currentPage = $aClean['iPage'];
 
 $totalPages = ceil(getNumberOfComments()/$ItemsPerPage);
 

admin/adminMaintainers.php

@@ -16,7 +16,7 @@ if(!$_SESSION['current']->hasPriv("admin"))
 apidb_header("Admin Maintainers");
 echo '<form name="sQform" action="adminMaintainers.php" method="post" enctype="multipart/form-data">',"\n";
 
-if ($aClean['sSub'])
+if (isset($aClean['sSub']))
 {
     if($aClean['sSub'] == 'delete')
     {

admin/adminScreenshots.php

@@ -16,7 +16,7 @@ if(!$_SESSION['current']->hasPriv("admin"))
 /*
  * We issued a delete command.
  */ 
-if($aClean['sCmd'])
+if(isset($aClean['sCmd']))
 {
     // process screenshot deletion
     if($aClean['sCmd'] == "delete" && is_numeric($aClean['iImageId']))
@@ -33,7 +33,7 @@ if($aClean['sCmd'])
 
 apidb_header("Screenshots");
 // regenerate all screenshots
-if($aClean['sRegenerate'])
+if(isset($aClean['sRegenerate']))
 {
     $sQuery = "SELECT id FROM appData WHERE type = 'screenshot'";
     $hResult = query_parameters($sQuery);
@@ -55,13 +55,8 @@ echo "</center>";
 /* display a range of 10 pages */
 $pageRange = 10;
 
-$ItemsPerPage = 6;
+$ItemsPerPage = isset($aClean['iItemsPerPage']) ? $aClean['iItemsPerPage'] : 6;
-$currentPage = 1;
+$currentPage = isset($aClean['iPage']) ? $aClean['iPage'] : 1;
-
-if($aClean['iItemsPerPage'])
-    $ItemsPerPage = $aClean['iItemsPerPage'];
-if($aClean['iPage'])
-    $currentPage = $aClean['iPage'];
 
 $ItemsPerPage = min($ItemsPerPage,100);
 $totalPages = ceil(appData::objectGetEntriesCount("all", false,

admin/adminUsers.php

@@ -13,28 +13,70 @@ if(!$_SESSION['current']->hasPriv("admin"))
 
 
 // we want to delete a user
-if($aClean['sAction'] == "delete" && is_numeric($aClean['iUserId']))
+if(isset($aClean['sAction']) && $aClean['sAction'] == "delete" &&
+    is_numeric($aClean['iUserId']))
 {
     $oUser = new User($aClean['iUserId']);
     $oUser->delete();
 }
 
+
 // search form
-echo html_frame_start("Users Management","400","",0)
+echo html_frame_start("Users Management","400","",0);
+
+$aClean['sSearch'] = isset($aClean['sSearch']) ? $aClean['sSearch'] : '';
+
+$sLimit100 = $sLimit200 = $sLimit500 = '';
+if ( isset($aClean['iLimit']) )
+{
+    switch ($aClean['iLimit'])
+    {
+        case '100':
+            $sLimit100 = 'selected';
+            break;
+        case '200':
+            $sLimit200 = 'selected';
+            break;
+        case '500':
+            $sLimit500 = 'selected';
+            break;
+    }
+}
+
+$sOrder1 = $sOrder2 = $sOrder3 = '';
+if ( isset($aClean['sOrderBy']) )
+{
+    switch ($aClean['sOrderBy'])
+    {
+        case 'email':
+            $sOrder1 = 'selected';
+            break;
+        case 'realname':
+            $sOrder2 = 'selected';
+            break;
+        case 'created':
+            $sOrder3 = 'selected';
+            break;
+    }
+}
+
 ?>
     <form action="<?php echo $_SERVER['PHP_SELF'];?>" method="post">
     <table width="100%" border=0 cellpadding=0 cellspacing=0>
         <tr>
             <td class="color1">Pattern</td>
-            <td><input type="text" name="sSearch" value="<?php echo $aClean['sSearch'];?>"/><br /><small>(leave blank to match all)</small></td>
+            <td>
+            <input type="text" name="sSearch" value="<?php echo $aClean['sSearch'];?>"/>
+            <br /><small>(leave blank to match all)</small>
+            </td>
         </tr>
         <tr>
             <td class="color1">Show first</td>
             <td>
                 <select name="iLimit">
-                    <option value="100"<?php if($aClean['iLimit']=="100")echo" SELECTED";?>>100 results</option>
+                    <option value="100" <?php echo $sLimit100; ?>>100 results</option>
-                    <option value="200"<?php if($aClean['iLimit']=="200")echo" SELECTED";?>>200 results</option>
+                    <option value="200" <?php echo $sLimit200; ?>>200 results</option>
-                    <option value="500"<?php if($aClean['iLimit']=="500")echo" SELECTED";?>>500 result</option>
+                    <option value="500" <?php echo $sLimit500; ?>>500 results</option>
                 </select>
             </td>
         </tr>
@@ -42,9 +84,9 @@ echo html_frame_start("Users Management","400","",0)
             <td class="color1">Order by</td>
             <td>
                 <select name="sOrderBy">
-                    <option value="email"<?php if($aClean['sOrderBy']=="email")echo" SELECTED";?>>e-mail</option>
+                    <option value="email" <?php echo $sOrder1;?>>e-mail</option>
-                    <option value="realname"<?php if($aClean['sOrderBy']=="realname")echo" SELECTED";?>>real name</option>
+                    <option value="realname" <?php echo $sOrder2;?>>real name</option>
-                    <option value="created"<?php if($aClean['sOrderBy']=="created")echo" SELECTED";?>>creation date</option>
+                    <option value="created" <?php echo $sOrder3;?>>creation date</option>
                 </select>
             </td>
         </tr>
@@ -57,7 +99,7 @@ echo html_frame_start("Users Management","400","",0)
 echo html_frame_end();
 
 // if the search form was submitted
-if($aClean['sSubmit'])
+if(isset($aClean['sSubmit']))
 {
     echo html_frame_start("Query Results","90%","",0);
     echo "<table width='100%' border=0 cellpadding=3 cellspacing=0>\n\n";

appbrowse.php

@@ -24,13 +24,14 @@ function admin_menu()
     $m->done();
 }
 
+$iCatId = isset($aClean['iCatId']) ? $aClean['iCatId'] : 0;
 // list sub categories
-$oCat = new Category($aClean['iCatId']?$aClean['iCatId']:"0");
+$oCat = new Category( $iCatId );
 $sCatFullPath = Category::make_cat_path($oCat->getCategoryPath());
 $subs = $oCat->aSubcatsIds;
 
 //display admin box
-if($_SESSION['current']->hasPriv("admin") && $aClean['iCatId'] != 0)
+if($_SESSION['current']->hasPriv("admin") && isset($aClean['iCatId']) && $aClean['iCatId'] != 0 )
     apidb_sidebar_add("admin_menu");
 
 //output header
@@ -96,7 +97,7 @@ if($subs)
     // output the table
     echo $oTable->GetString();
 
-    echo html_frame_end("$c categories");
+    echo html_frame_end( count($subs) . ' categories');
 }
 
 
@@ -156,7 +157,7 @@ if($apps)
     // output table
     echo $oTable->GetString();
 
-    echo html_frame_end("$c applications in this category");
+    echo html_frame_end( count($apps) . " applications in this category");
 }
 
 // Disabled for now

appview.php

@@ -27,8 +27,6 @@ require_once(BASE."include/category.php");
 require_once(BASE."include/maintainer.php");
 require_once(BASE."include/monitor.php");
 
-$oApp = new Application($aClean['iAppId']);
-$oVersion = new Version($aClean['iVersionId']);
 
 /**
  * Displays the SUB apps that belong to this application.
@@ -76,7 +74,7 @@ function display_bundle($iAppId)
 if(empty($aClean['iAppId']) && empty($aClean['iVersionId']))
     util_show_error_page_and_exit("Something went wrong with the application or version id");
 
-if ($aClean['sSub'])
+if (isset($aClean['sSub']))
 {
     if(($aClean['sSub'] == 'delete' ) && ($aClean['iBuglinkId']))
     {
@@ -135,14 +133,15 @@ if ($aClean['sSub'])
 /**
  * We want to see an application family (=no version).
  */
-if($aClean['iAppId'])
+if( isset($aClean['iAppId']) )
 {
     $oApp = new Application($aClean['iAppId']);
     $oApp->display();
-} else if($aClean['iVersionId']) // We want to see a particular version.
+} else if( isset($aClean['iVersionId']) ) // We want to see a particular version.
 {
     $oVersion = new Version($aClean['iVersionId']);
-    $oVersion->display($aClean['iTestingId']);
+    $iTestingId = isset($aClean['iTestingId']) ? $aClean['iTestingId'] : null;
+    $oVersion->display($iTestingId);
 } else
 {
     // Oops! Called with no params, bad llamah!

browse_downloadable.php

@@ -12,13 +12,14 @@ apidb_header("Browse Downloadable Applications");
 echo "<div class='default_container'>\n";
 
 /* Match specific license? */
-$sLicense = version::checkLicense($aClean['sLicense']);
+$sLicenseString = isset($aClean['sLicense']) ? $aClean['sLicense'] : '';
+$sLicense = version::checkLicense( $sLicenseString );
 
 /* Set default values */
-if(!$aClean['iNumVersions'] || $aClean['iNumVersions'] > 200 || $aClean['iNumVersions'] < 0)
+if(!isset($aClean['iNumVersions']) || $aClean['iNumVersions'] > 200 || $aClean['iNumVersions'] < 0)
     $aClean['iNumVersions'] = 25;
 
-if(!$aClean['iPage'])
+if( !isset($aClean['iPage']) )
     $aClean['iPage'] = 1;
 
 /* Count the possible matches */
@@ -39,7 +40,7 @@ else
 if($hResult && mysql_num_rows($hResult))
     $num = mysql_num_rows($hResult);
 
-$iNumPages = ceil($num / $aClean['iNumVersions']);
+$iNumPages = isset($num) ? ceil($num/$aClean['iNumVersions']) : 0;
 
 /* Check page logic */
 $aClean['iPage'] = min($aClean['iPage'], $iNumPages);
@@ -50,9 +51,11 @@ $iLimitLower = ($aClean['iPage'] - 1) * $aClean['iNumVersions'];
 /* Page selection */
 echo "<div align=\"center\">\n";
 echo "<b>Page ".$aClean['iPage']." of $iNumPages</b><br />\n";
+// $iPageRange is non-existent here? creating it
+$iPageRange = 10;
 display_page_range($aClean['iPage'], $iPageRange, $iNumPages,
     $_SERVER['PHP_SELF']."?iNumVersions=".$aClean['iNumVersions']."&sLicense=".
-    $aClean['sLicense']);
+    $sLicenseString);
 
 /* Selector for how many versions to display */
 echo "<form method=\"get\" action=\"".$_SERVER['PHP_SELF']."\">\n";
@@ -78,7 +81,7 @@ echo $oVersion->makeLicenseList($sLicense);
 echo " <input type=\"submit\" value=\"Refresh\" />\n";
 echo "</form></div>\n<br />\n";
 
-if(!$num)
+if(!isset($num))
 {
     echo "<div align=\"center\"><font color=\"red\">No matches found</font></div>\n";
     echo html_frame_end("&nbsp;");

help/index.php

@@ -8,7 +8,7 @@ require(BASE."include/"."incl.php");
 
 $help_path = BASE."/help";
 
-if($aClean['sTopic'])
+if(isset($aClean['sTopic']))
 {
     display_help($aClean['sTopic']);
 } else {

include/appData.php

@@ -258,6 +258,8 @@ class appData
         {
             if($sQueued == "true" || $sQueued == "false")
                 $sAppDataQueued = " AND appData.queued = '$sQueued'";
+            else
+                $sAppDataQueued = '';
 
             if($sType)
                 $sSelectType = " AND type = '?'";

include/application.php

@@ -879,7 +879,7 @@ class Application {
         if($_SESSION['current']->hasPriv("admin"))
             return TRUE;
         
-        if(is_object($this) && $this->iAppId)
+        if(isset($this) && is_object($this) && $this->iAppId)
         {
             if(maintainer::isUserSuperMaintainer($_SESSION['current'],
                 $this->iAppId))

include/comment.php

@@ -435,7 +435,7 @@ class Comment {
         else
             $mode = "threaded"; /* default non-logged in users to threaded comment display mode */
 
-        if ($aClean['sMode']=="nested")
+        if ( isset($aClean['sMode']) && $aClean['sMode']=="nested")
             $mode = "nested";
 
         switch ($mode)

include/downloadurl.php

@@ -50,6 +50,8 @@ class downloadurl
         if(!($hResult = appData::getData($iVersionId, "downloadurl")))
             return FALSE;
 
+        // we're appending, so initialize it
+        $sReturn = '';
         for($i = 0; $oRow = mysql_fetch_object($hResult); $i++)
         {
             $sReturn .= html_tr(array(

include/error_log.php

@@ -22,9 +22,10 @@ class error_log
 
         $sQuery = 'INSERT INTO error_log (submitTime, userid, type, log_text, request_text, deleted) '.
             "VALUES(?, '?', '?', '?', '?', '?')";
+        $iUser = (isset($_SESSION['current']) ? $_SESSION['current']->iUserId : 0);
         $hResult = query_parameters($sQuery,
                                     "NOW()",
-                                    $_SESSION['current']->iUserId,
+                                    $iUser,
                                     $sErrorType,
                                     $sLogText,
                                     $sRequestText,

include/form_login.php

@@ -9,7 +9,7 @@ echo '<form method="post" name="sFlogin" action="account.php">',"\n";
 echo html_frame_start("Login to Application DB","400","",0);
 /* Pass on the URL we should return to after log-in */
 global $aClean;
-echo '<input type="hidden" name="sReturnTo" value="'.$aClean['sReturnTo'].'" />';
+echo '<input type="hidden" name="sReturnTo" value="' . (isset($aClean['sReturnTo']) ? $aClean['sReturnTo'] : '') . '" />';
 ?>
 
 <!-- start of login form -->

include/form_new.php

@@ -31,7 +31,7 @@ echo html_frame_start("Create New Application DB Account","400","",0)
 <?php
 
         echo "<tr><td class=color1>&nbsp; Wine version </td><td class=color0>";
-        make_bugzilla_version_list("sWineRelease", $aClean['sWineRelease']);
+        echo make_bugzilla_version_list("sWineRelease", isset($aClean['sWineRelease']) ? $aClean['sWineRelease'] : '');
         echo "</td></tr>";
 
 ?>

include/monitor.php

@@ -47,13 +47,15 @@ class Monitor {
                           WHERE userId = '".$iUserId."'
                           AND versionId = '".$iVersionId."'";
             $hResult = query_appdb($sQuery);
-            $oRow = mysql_fetch_object($hResult);
+            if( $oRow = mysql_fetch_object($hResult) )
+            {
                 $this->iMonitorId = $oRow->monitorId;
                 $this->iAppId = $oRow->appId;
                 $this->iVersionId = $oRow->versionId;
                 $this->iUserId = $oRow->userId;
             }
         }
+    }
 
     /*
      * Creates a new Monitor.

include/objectManager.php

@@ -492,7 +492,7 @@ class ObjectManager
         // is the value we modify and we'll be passing that into methods in the future
         global $aClean;
 
-        if(!$aClean['sSubmit'])
+        if(!isset($aClean['sSubmit']))
             return;
 
         $this->checkMethods(array("getOutputEditorValues", "update", "create",
@@ -513,12 +513,11 @@ class ObjectManager
         // handle the common response radio button value
         // if sReplyText is empty, if sOMCommonReply was set because
         // the user selected a radio button then use that text instead
-        if(($aClean['sReplyText'] == "") && isset($aClean['sOMCommonReply']))
+        if( isset($aClean['sReplyText']) && $aClean['sReplyText'] == "" && isset($aClean['sOMCommonReply']))
         {
           $aClean['sReplyText'] = $aClean['sOMCommonReply'];
         }
 
-
         $oObject->getOutputEditorValues($aClean);
 
         /* Check input, if necessary */
@@ -635,10 +634,7 @@ class ObjectManager
     function getIdFromInput($aClean)
     {
         $sId = "i".ucfirst($this->sClass)."Id";
-        $iId = $aClean['sId'];
+        $iId = isset($aClean['sId']) ? $aClean['sId'] : $aClean['iId'];
-
-        if(!$iId)
-            $iId = $aClean['iId'];
 
         return $iId;
     }
@@ -678,12 +674,11 @@ class ObjectManager
         $aItemsPerPage = $aReturn[0];
         $iDefaultPerPage = $aReturn[1];
 
+
         $iItemsPerPage = $iDefaultPerPage;
-        foreach($aItemsPerPage as $iNum)
+
-        {
+        if ( isset($aClean['iItemsPerPage']) && in_array($aClean['iItemsPerPage'], $aItemsPerPage) )
-            if($iNum == $aClean['iItemsPerPage'])
             $iItemsPerPage = $aClean['iItemsPerPage'];
-        }
         
         $sControls = "<form action=\"".$this->makeUrl()."\" method=\"get\">";
 
@@ -705,9 +700,7 @@ class ObjectManager
         $iNumPages = ceil($iTotalEntries / $iItemsPerPage);
 
         /* Check current page value */
-        $iPage = $aClean['iPage'];
+        $iPage = isset($aClean['iPage']) ? $aClean['iPage'] : 1;
-        if(!$iPage)
-            $iPage = 1;
         $iCurrentPage = min($iPage, $iNumPages);
 
         /* Display selectors and info */
@@ -778,7 +771,7 @@ class MultiPage
 
     function getDataFromInput($aClean)
     {
-        if($aClean['iItemsPerPage'] && $aClean['iPage'])
+        if(isset($aClean['iItemsPerPage']) && isset($aClean['iPage']))
             $this->bEnabled = TRUE;
         else
             return;

include/screenshot.php

@@ -401,6 +401,9 @@ class screenshot
     function get_random_screenshot_img($iAppId = null, $iVersionId = null,
                                        $bFormatting = true) 
     {
+        // initialize variables to avoid notices when appending to them
+        $sImgFile = '';
+        $sImg = '';
         // we want a random screenshots for this app
         if($iAppId && !$iVersionId)
         {

include/testData.php

@@ -444,7 +444,7 @@ class testData{
         $link = mysql_real_escape_string($link);
         $iDisplayLimit = mysql_real_escape_string($iDisplayLimit);
 
-        $sShowAll = $aClean['sShowAll'];
+        $sShowAll = isset($aClean['sShowAll']) ? $aClean['sShowAll'] : false;
 
         $sQuery = "SELECT * 
                    FROM testResults

include/util.php

@@ -402,6 +402,8 @@ function cleanupSearchWords($search_words)
 
     /* search each word in $search_words */
     $split_words = split(" ", $search_words);
+
+    $removed_words = '';
     foreach($split_words as $key=>$value)
     {
         /* see if this word is in the ignore list */

index.php

@@ -67,6 +67,8 @@ if(!$_SESSION['current']->isLoggedIn())
     echo "There are <b>$iNumApps</b> applications currently in the database";
 
     // don't mention the top application if there are no votes yet
+    if( !empty($oRow) )
+    {
         if($oRow->versionId)
         {
             $shVoteAppLink = version::fullNameLink($oRow->versionId);
@@ -77,6 +79,7 @@ if(!$_SESSION['current']->isLoggedIn())
             echo " please <a href=\"".BASE."help/?sTopic=voting\" title=\"help on voting\"".
                 "style=\"cursor: help\">vote</a> for your favourite application.\n";
         }
+    }
 ?>
 
 <br /><br />

objectManager.php

@@ -25,7 +25,7 @@ require_once(BASE.'include/testData_queue.php');
 require_once(BASE.'include/browse_newest_apps.php');
 
 /* if we have no valid class name we should abort */
-if(!$aClean['sClass'])
+if(!isset($aClean['sClass']))
 {
     echo "No class defined.\n";
     exit;
@@ -38,13 +38,16 @@ if(!class_exists($aClean['sClass']))
     exit;
 }
 
+$aClean['iId'] = isset($aClean['iId']) ? $aClean['iId'] : 0;
+
 $oObject = new objectManager($aClean['sClass'], $aClean['sTitle'], $aClean['iId']);
 
-if($aClean['bIsQueue'] == 'true')
+if(isset($aClean['bIsQueue']) && $aClean['bIsQueue'] == 'true')
     $oObject->bIsQueue = true;
 else
     $oObject->bIsQueue = false;
 
+$aClean['bIsRejected'] = isset($aClean['bIsRejected']) ? $aClean['bIsRejected'] : false;
 /* If it is rejected it is defined as queued */
 if($aClean['bIsRejected'] == 'true')
 {
@@ -65,7 +68,7 @@ $sErrors = $oObject->processForm($aClean);
 if($oObject->iId && $aClean['sAction'] == "delete")
     $oObject->delete_entry();
 
-if($aClean['sAction'] == "add")
+if(isset($aClean['sAction']) && $aClean['sAction'] == "add")
     $oObject->handle_anonymous_submission();
 
 /* Provided the necessary values are present, an object's children may be moved
@@ -96,7 +99,7 @@ if($oObject->iId)
         $oObject->view($_SERVER['REQUEST_URI']);
         break;
     }
-} else if ($aClean['sAction'] == "add")
+} else if (isset($aClean['sAction']) && $aClean['sAction'] == "add")
 {
     $oObject->add_entry($_SERVER['REQUEST_URI'], $sErrors);
 } else

preferences.php

@@ -108,8 +108,9 @@ if(!$_SESSION['current']->isLoggedIn())
 
 // we come from the administration to edit an user
 if($_SESSION['current']->hasPriv("admin") &&
-   is_numeric($aClean['iUserId']) &&
+    isset($aClean['iUserId']) &&
-   is_numeric($aClean['iLimit']) &&
+    isset($aClean['iLimit']) &&
+    isset($aClean['sOrderBy']) &&
     in_array($aClean['sOrderBy'],array("email","realname","created"))
 )
 {
@@ -119,7 +120,7 @@ if($_SESSION['current']->hasPriv("admin") &&
     $oUser = &$_SESSION['current'];
 }
 
-if($aClean['sSubmit'] == "Update")
+if(isset($aClean['sSubmit']) && $aClean['sSubmit'] == "Update")
 {
     while(list($sKey, $sValue) = each($aClean))
     {
@@ -182,7 +183,7 @@ echo "<div class='default_container'>\n";
 echo "<form method=\"post\" action=\"preferences.php\">\n";
 
 // if we manage another user we give the parameters to go back to the admin
-if($oUser->iUserId == $aClean['iUserId'])
+if( isset($aClean['iUserId']) && $oUser->iUserId == $aClean['iUserId'])
 {
     echo "<input type=\"hidden\" name=\"iLimit\" value=\"".$aClean['iLimit']."\">\n";
     echo "<input type=\"hidden\" name=\"sOrderBy\" value=\"".$aClean['sOrderBy']."\">\n";
@@ -210,7 +211,7 @@ foreach($aTableRows as $oTableRow)
   $oTable->AddRow($oTableRow);
 
 // if we don't manage another user
-if($oUser->iUserId != $aClean['iUserId'])
+if( !isset($aClean['iUserId']) || $oUser->iUserId != $aClean['iUserId'])
 {
   $aTableRows = build_prefs_list($oUser);
   foreach($aTableRows as $oTableRow)

viewScreenshots.php

@@ -16,13 +16,8 @@ echo "<div class='default_container'>\n";
 /* display a range of 10 pages */
 $pageRange = 10;
 
-$ItemsPerPage = 6;
+$ItemsPerPage = isset($aClean['iItemsPerPage']) ? $aClean['iItemsPerPage'] : 6;
-$currentPage = 1;
+$currentPage = isset($aClean['iPage']) ? $aClean['iPage'] : 1;
-
-if($aClean['iItemsPerPage'])
-    $ItemsPerPage = $aClean['iItemsPerPage'];
-if($aClean['iPage'])
-    $currentPage = $aClean['iPage'];
 
 $ItemsPerPage = min($ItemsPerPage,100);
 $totalPages = ceil(appData::objectGetEntriesCount("false", false,