--- a/msite.inc.php	Tue May 14 14:12:42 2019 +0300
+++ b/msite.inc.php	Tue May 14 14:45:36 2019 +0300
@@ -387,7 +387,7 @@
   if (isset($displayVars[$name]))
   {
     $displayVars[$name] = $value;
-    $displayVarsChanged[$name] = true;
+    $displayVarsChanged[$name] = TRUE;
   }
   else
     die("No display var for '".$name."'.\n");
@@ -658,14 +658,14 @@
   else
   if (strlen($email) > 0)
   {
-    if ($id !== false)
+    if ($id !== FALSE)
       // By another ID, if we are updating an entry
       $sql = stPrepareSQL("SELECT * FROM attendees WHERE id<>%d AND email=%s", $id, $email);
     else
       // Or just exists, if adding
       $sql = stPrepareSQL("SELECT * FROM attendees WHERE email=%s", $email);
 
-    if (($data = stFetchSQL($sql)) !== false)
+    if (($data = stFetchSQL($sql)) !== FALSE)
     {
       stError("Someone with the same e-mail address is already registered.");
       $res = FALSE;
@@ -675,14 +675,14 @@
   // Check if another user already exists
   if ($chk >= 2)
   {
-    if ($id !== false)
+    if ($id !== FALSE)
       // By another ID, if we are updating an entry
       $sql = stPrepareSQL("SELECT * FROM attendees WHERE id<>%d AND name=%s AND groups=%s", $id, $name, $groups);
     else
       // Or just exists, if adding
       $sql = stPrepareSQL("SELECT * FROM attendees WHERE name=%s AND groups=%s", $name, $groups);
 
-    if (($data = stFetchSQL($sql)) !== false)
+    if (($data = stFetchSQL($sql)) !== FALSE)
     {
       stError("Someone with the same name and groups is already registered.");
       $res = FALSE;
@@ -770,7 +770,7 @@
   $userKeyMode = stGetSetting("userKeyMode");
   $out = array();
   $sql = "SELECT * FROM compos ".(($flags & RFLAG_HIDDEN_COMPOS) ? "" : "WHERE visible<>0 ")."ORDER BY name DESC";
-  if (($res = stExecSQL($sql)) === false)
+  if (($res = stExecSQL($sql)) === FALSE)
     return $out;
 
   // For each compo that has been set visible
@@ -971,7 +971,7 @@
 {
   global $fileTypeData;
 
-  if ($compo === false || $entry === false)
+  if ($compo === FALSE || $entry === FALSE)
     return FALSE;
 
   $previewPath = stGetSetting("previewPath");
@@ -984,7 +984,7 @@
   );
 
   if ($entry["preview_id"] != 0 &&
-    ($efile = stFetchSQL("SELECT * FROM files WHERE deleted=0 AND id=".$entry["preview_id"])) !== false)
+    ($efile = stFetchSQL("SELECT * FROM files WHERE deleted=0 AND id=".$entry["preview_id"])) !== FALSE)
   {
     $pdata["file"] = $efile;
     if (isset($fileTypeData[$efile["filetype"]]["type"]))
@@ -992,7 +992,7 @@
   }
   else
   if ($entry["file_id"] == 0)
-    $pdata["valid"] = $efile = false;
+    $pdata["valid"] = $efile = FALSE;
 
   switch ($pdata["type"])
   {
@@ -1090,7 +1090,7 @@
   global $fileTypeData;
 
   // Get file magic info
-  if (($finfo = finfo_open()) === false)
+  if (($finfo = finfo_open()) === FALSE)
   {
     stLogError("Internal error. Failed to initialize finfo().");
     return stError("Internal error, failed to probe file.");
@@ -1144,7 +1144,7 @@
     "VALUES (%s,%s,%d,%d,%d,%s,%d)",
     $origName, $fileType, $fileSize, $entry["id"], $uploaderID, $type, time());
 
-  if (($fileID = stExecSQLInsert($sql)) === false)
+  if (($fileID = stExecSQLInsert($sql)) === FALSE)
     return stFileError($uploaderID,
       "Failed to add new ".$type." file for entry #".$entry["id"]." '".$origName."'.",
       "Internal error. Failed to add new file.");
@@ -1160,20 +1160,20 @@
 
   // Update entry with generated filename
   $sql = stPrepareSQL("UPDATE files SET filename=%s WHERE id=%d", $fileName, $fileID);
-  if (stExecSQL($sql) === false)
+  if (stExecSQL($sql) === FALSE)
     return stFileError($uploaderID,
       "Failed to update newly created files entry #".$fileID." with generated filename '".$fileName."'!",
       "Internal error. Failed to add new file.");
 
   // Update entry's reference
   $sql = stPrepareSQL("UPDATE entries SET ".$field."=%d WHERE id=%d", $fileID, $entry["id"]);
-  if (stExecSQL($sql) === false)
+  if (stExecSQL($sql) === FALSE)
     return stFileError($uploaderID,
       "Failed to update entry #".$entry["id"]." ".$type." ID!",
       "Internal error. Failed to add new file.");
 
   // Return file entry
-  if (($res = stFetchSQL("SELECT * FROM files WHERE id=".$fileID)) === false)
+  if (($res = stFetchSQL("SELECT * FROM files WHERE id=".$fileID)) === FALSE)
     return stFileError($uploaderID,
       "Failed to fetch newly generated files entry #".$fileID,
       "Internal error. Failed to add new file.");
@@ -1199,12 +1199,12 @@
     return FALSE;
 
   // Check entry existence
-  if (($entry = stFetchSQL("SELECT * FROM entries WHERE id=".$entryID)) === false)
+  if (($entry = stFetchSQL("SELECT * FROM entries WHERE id=".$entryID)) === FALSE)
     return stFileError($userID,
       "Entry ID #".$entryID." does not exist in the entries table?",
       "Entry does not exist??");
 
-  if (($compo = stFetchSQL("SELECT * FROM compos WHERE id=".$entry["compo_id"])) === false)
+  if (($compo = stFetchSQL("SELECT * FROM compos WHERE id=".$entry["compo_id"])) === FALSE)
     return stFileError($userID,
       "Compo ID #".$entry["compo_id"]." in entry ID #".$entryID." does not exist!",
       "Compo does not exist??");
@@ -1232,7 +1232,7 @@
   if ($userID != 0)
   {
     // Check if the user even exists, just in case
-    if (($user = stFetchSQL("SELECT * FROM attendees WHERE id=".$userID)) === false)
+    if (($user = stFetchSQL("SELECT * FROM attendees WHERE id=".$userID)) === FALSE)
       return stFileError($userID,
         "User ID #".$userID." does not exist??",
         "You do not exist. Go away.");
@@ -1292,33 +1292,33 @@
 
 
   // Check file properties ..
-  if (($fileInfo = stProbeFileInfo($tmpFilename)) === false)
+  if (($fileInfo = stProbeFileInfo($tmpFilename)) === FALSE)
     return FALSE;
 
   if ($uploadType == "preview" && !isset($fileInfo["type"]))
     return stError("Preview file upload is not one of the supported preview file types.");
   
   // Get original extension
-  if (($fileExt = $fileInfo["fext"]) === false)
+  if (($fileExt = $fileInfo["fext"]) === FALSE)
   {
     $fileExt = "bin";
-    if (($epos = strrpos($orgFilename, ".")) !== false)
+    if (($epos = strrpos($orgFilename, ".")) !== FALSE)
       $fileExt = substr($orgFilename, $epos + 1);
   }
 
   // Update current or add new file entry
-  if (($fentry = stAddFileEntry($entry, $uploadType, $orgFilename, $fileSize, $fileExt, $fileInfo["id"], $userID)) === false)
+  if (($fentry = stAddFileEntry($entry, $uploadType, $orgFilename, $fileSize, $fileExt, $fileInfo["id"], $userID)) === FALSE)
     return FALSE;
 
   // Set permissions before moving the file
-  if (chmod($tmpFilename, stGetSetting($uploadType."PathPerms")) === false)
+  if (chmod($tmpFilename, stGetSetting($uploadType."PathPerms")) === FALSE)
     return stFileError($userID,
       "Could not set permissions for uploaded file '".$tmpFilename."'.",
       "Internal error. Could not set permissions for uploaded file. Contact site admins.");
 
   // Move file to its destination
   $dstFilename = stMakePath(FALSE, TRUE, array(stGetSetting("entryPath"), $compo["cpath"], $fentry["filename"]));
-  if (@move_uploaded_file($tmpFilename, $dstFilename) === false)
+  if (@move_uploaded_file($tmpFilename, $dstFilename) === FALSE)
     return stFileError($userID,
       "Could not move uploaded file '".$tmpFilename."' to '".$dstFilename."'.",
       "Internal error. Deploying uploaded file failed! Contact site admins.");