diff --git a/system/modules/multicolumnwizard/MultiColumnWizard.php b/system/modules/multicolumnwizard/MultiColumnWizard.php
index f0d4df2..886a5e8 100644
--- a/system/modules/multicolumnwizard/MultiColumnWizard.php
+++ b/system/modules/multicolumnwizard/MultiColumnWizard.php
@@ -82,11 +82,13 @@ class MultiColumnWizard extends Widget implements uploadable
      * Buttons
      * @var array
      */
-    protected $arrButtons = array('new'    => 'new.gif',
-                                  'copy'   => 'copy.gif',
-                                  'up'     => 'up.gif',
-                                  'down'   => 'down.gif',
-                                  'delete' => 'delete.gif');
+    protected $arrButtons = array(
+        'new'    => 'new.gif',
+        'copy'   => 'copy.gif',
+        'up'     => 'up.gif',
+        'down'   => 'down.gif',
+        'delete' => 'delete.gif'
+    );
 
     /**
      * Initialize the object
@@ -97,8 +99,7 @@ public function __construct($arrAttributes = false)
         parent::__construct($arrAttributes);
         $this->import('Database');
 
-        if (TL_MODE == 'FE')
-        {
+        if (TL_MODE == 'FE') {
             $this->strTemplate = 'form_widget';
             $this->loadDataContainer($arrAttributes['strTable']);
         }
@@ -111,8 +112,7 @@ public function __construct($arrAttributes = false)
      */
     public function __set($strKey, $varValue)
     {
-        switch ($strKey)
-        {
+        switch ($strKey) {
             case 'value':
                 $this->varValue = deserialize($varValue, true);
 
@@ -121,12 +121,10 @@ public function __set($strKey, $varValue)
                  * from array[] = value
                  * to array[]['fieldname'] = value
                  */
-                if ($this->flatArray)
-                {
+                if ($this->flatArray) {
                     $arrNew = array();
 
-                    foreach ($this->varValue as $val)
-                    {
+                    foreach ($this->varValue as $val) {
                         $arrNew[] = array(key($this->columnFields) => $val);
                     }
 
@@ -139,8 +137,7 @@ public function __set($strKey, $varValue)
                 break;
 
             case 'columnsCallback':
-                if (!is_array($varValue))
-                {
+                if (!is_array($varValue)) {
                     throw new Exception('Parameter "columns" has to be an array: array(\'Class\', \'Method\')!');
                 }
 
@@ -148,21 +145,18 @@ public function __set($strKey, $varValue)
                 break;
 
             case 'buttons':
-                if (is_array($varValue))
-                {
+                if (is_array($varValue)) {
                     $this->arrButtons = array_merge($this->arrButtons, $varValue);
                 }
                 break;
 
             case 'hideButtons':
-                if ($varValue === true)
-                {
+                if ($varValue === true) {
                     $this->arrButtons = array();
                 }
 
             case 'disableSorting':
-                if ($varValue == true)
-                {
+                if ($varValue == true) {
                     unset($this->arrButtons['up']);
                     unset($this->arrButtons['down']);
                     unset($this->arrButtons['move']);
@@ -197,8 +191,7 @@ public function __set($strKey, $varValue)
 
     public function __get($strKey)
     {
-        switch ($strKey)
-        {
+        switch ($strKey) {
             case 'value':
                 /**
                  * reformat array if we have only one field
@@ -206,19 +199,15 @@ public function __get($strKey)
                  * to array[] = value
                  * so we have the same behavoir like multiple-checkbox fields
                  */
-                if ($this->flatArray)
-                {
+                if ($this->flatArray) {
                     $arrNew = array();
 
-                    foreach ($this->varValue as $val)
-                    {
+                    foreach ($this->varValue as $val) {
                         $arrNew[] = $val[key($this->columnFields)];
                     }
 
                     return $arrNew;
-                }
-                else
-                {
+                } else {
                     return parent::__get($strKey);
                 }
                 break;
@@ -233,29 +222,24 @@ protected function validator($varInput)
     {
         $blnHasError = false;
 
-        for ($i = 0; $i < count($varInput); $i++)
-        {
+        for ($i = 0; $i < count($varInput); $i++) {
             $this->activeRow = $i;
 
-            if (!$this->columnFields)
-            {
+            if (!$this->columnFields) {
                 continue;
             }
 
             // Walk every column
-            foreach ($this->columnFields as $strKey => $arrField)
-            {
+            foreach ($this->columnFields as $strKey => $arrField) {
                 $objWidget = $this->initializeWidget($arrField, $i, $strKey, $varInput[$i][$strKey]);
 
                 // can be null on error, or a string on input_field_callback
-                if (!is_object($objWidget))
-                {
+                if (!is_object($objWidget)) {
                     continue;
                 }
 
                 // hack for checkboxes
-                if ($arrField['inputType'] == 'checkbox' && isset($varInput[$i][$strKey]))
-                {
+                if ($arrField['inputType'] == 'checkbox' && isset($varInput[$i][$strKey])) {
                     $_POST[$objWidget->name] = $varInput[$i][$strKey];
                 }
 
@@ -265,25 +249,19 @@ protected function validator($varInput)
 
                 // Convert date formats into timestamps (check the eval setting first -> #3063)
                 $rgxp = $arrField['eval']['rgxp'];
-                if (!$objWidget->hasErrors() && ($rgxp == 'date' || $rgxp == 'time' || $rgxp == 'datim') && $varValue != '')
-                {
-                    $objDate  = new Date($varValue,$this->getNumericDateFormat($rgxp));
+                if (!$objWidget->hasErrors() && ($rgxp == 'date' || $rgxp == 'time' || $rgxp == 'datim') && $varValue != '') {
+                    $objDate  = new Date($varValue, $this->getNumericDateFormat($rgxp));
                     $varValue = $objDate->tstamp;
                 }
 
                 // Save callback
-                if (is_array($arrField['save_callback']))
-                {
-                    foreach ($arrField['save_callback'] as $callback)
-                    {
+                if (is_array($arrField['save_callback'])) {
+                    foreach ($arrField['save_callback'] as $callback) {
                         $this->import($callback[0]);
 
-                        try
-                        {
+                        try {
                             $varValue = $this->{$callback[0]}->{$callback[1]}($varValue, $this);
-                        }
-                        catch (Exception $e)
-                        {
+                        } catch (Exception $e) {
                             $objWidget->class = 'error';
                             $objWidget->addError($e->getMessage());
                         }
@@ -293,8 +271,7 @@ protected function validator($varInput)
                 $varInput[$i][$strKey] = $varValue;
 
                 // Do not submit if there are errors
-                if ($objWidget->hasErrors())
-                {
+                if ($objWidget->hasErrors()) {
                     // store the errors
                     $this->arrWidgetErrors[$strKey][$i] = $objWidget->getErrors();
 
@@ -303,20 +280,17 @@ protected function validator($varInput)
             }
         }
 
-        if ($this->minCount > 0 && count($varInput) < $this->minCount)
-        {
+        if ($this->minCount > 0 && count($varInput) < $this->minCount) {
             $this->blnSubmitInput = false;
             $this->addError(sprintf($GLOBALS['TL_LANG']['ERR']['mcwMinCount'], $this->minCount));
         }
 
-        if ($this->maxCount > 0 && count($varInput) > $this->maxCount)
-        {
+        if ($this->maxCount > 0 && count($varInput) > $this->maxCount) {
             $this->blnSubmitInput = false;
             $this->addError(sprintf($GLOBALS['TL_LANG']['ERR']['mcwMaxCount'], $this->maxCount));
         }
 
-        if ($blnHasError)
-        {
+        if ($blnHasError) {
             $this->blnSubmitInput = false;
             $this->addError($GLOBALS['TL_LANG']['ERR']['general']);
         }
@@ -331,8 +305,7 @@ protected function validator($varInput)
     public function generate()
     {
         // load the callback data if there's any (do not do this in __set() already because then we don't have access to currentRecord)
-        if (is_array($this->arrCallback))
-        {
+        if (is_array($this->arrCallback)) {
             $this->import($this->arrCallback[0]);
             $this->columnFields = $this->{$this->arrCallback[0]}->{$this->arrCallback[1]}($this);
         }
@@ -348,11 +321,9 @@ public function generate()
         $this->strCommand = 'cmd_' . $this->strField;
 
         // Change the order
-        if ($this->Input->get($this->strCommand) && is_numeric($this->Input->get('cid')) && $this->Input->get('id') == $this->currentRecord)
-        {
+        if ($this->Input->get($this->strCommand) && is_numeric($this->Input->get('cid')) && $this->Input->get('id') == $this->currentRecord) {
 
-            switch ($this->Input->get($this->strCommand))
-            {
+            switch ($this->Input->get($this->strCommand)) {
                 case 'copy':
                     $this->varValue = array_duplicate($this->varValue, $this->Input->get('cid'));
                     break;
@@ -371,18 +342,15 @@ public function generate()
             }
 
             // Save in File
-            if ($GLOBALS['TL_DCA'][$this->strTable]['config']['dataContainer'] == 'File')
-            {
+            if ($GLOBALS['TL_DCA'][$this->strTable]['config']['dataContainer'] == 'File') {
                 $this->Config->update(sprintf("\$GLOBALS['TL_CONFIG']['%s']", $this->strField), serialize($this->varValue));
 
                 // Reload the page
                 $this->redirect(preg_replace('/&(amp;)?cid=[^&]*/i', '', preg_replace('/&(amp;)?' . preg_quote($this->strCommand, '/') . '=[^&]*/i', '', Environment::get('request'))));
             }
             // Save in table
-            else if ($GLOBALS['TL_DCA'][$this->strTable]['config']['dataContainer'] == 'Table')
-            {
-                if (is_array($GLOBALS['TL_DCA'][$this->strTable]['fields'][$this->strField]['save_callback']))
-                {
+            else if ($GLOBALS['TL_DCA'][$this->strTable]['config']['dataContainer'] == 'Table') {
+                if (is_array($GLOBALS['TL_DCA'][$this->strTable]['fields'][$this->strField]['save_callback'])) {
                     $dataContainer = 'DC_' . $GLOBALS['TL_DCA'][$this->strTable]['config']['dataContainer'];
 
                     $dc            = new $dataContainer($this->strTable);
@@ -390,25 +358,21 @@ public function generate()
                     $dc->inputName = $this->strField;
                     $dc->strInputName = $this->strField;
 
-                    foreach ($GLOBALS['TL_DCA'][$this->strTable]['fields'][$this->strField]['save_callback'] AS $callback)
-                    {
+                    foreach ($GLOBALS['TL_DCA'][$this->strTable]['fields'][$this->strField]['save_callback'] as $callback) {
                         $this->import($callback[0]);
                         $this->{$callback[0]}->{$callback[1]}(serialize($this->varValue), $dc);
                     }
-                }
-                else
-                {
+                } else {
                     $this->Database->prepare("UPDATE " . $this->strTable . " SET " . $this->strField . "=? WHERE id=?")
-                            ->execute(serialize($this->varValue), $this->currentRecord);
+                        ->execute(serialize($this->varValue), $this->currentRecord);
                 }
 
                 // Reload the page
                 $this->redirect(preg_replace('/&(amp;)?cid=[^&]*/i', '', preg_replace('/&(amp;)?' . preg_quote($this->strCommand, '/') . '=[^&]*/i', '', Environment::get('request'))));
             }
             // Unknow
-            else
-            {
-               // What to do here?
+            else {
+                // What to do here?
             }
         }
 
@@ -418,31 +382,26 @@ public function generate()
         $arrTinyMCE = array();
         $arrHeaderItems = array();
 
-        foreach ($this->columnFields as $strKey => $arrField)
-        {
+        foreach ($this->columnFields as $strKey => $arrField) {
             $fullName =  $this->strName . '__' . $strKey;
 
             // Store unique fields
-            if ($arrField['eval']['unique'])
-            {
+            if ($arrField['eval']['unique'] ?? false) {
                 $arrUnique[] = $strKey;
             }
 
             // Store date picker fields
-            if ($arrField['eval']['datepicker'])
-            {
+            if ($arrField['eval']['datepicker'] ?? false) {
                 $arrDatepicker[] = $strKey;
             }
 
             // Store color picker fields
-            if ($arrField['eval']['colorpicker'])
-            {
-				$arrColorpicker[] = $strKey;
+            if ($arrField['eval']['colorpicker'] ?? false) {
+                $arrColorpicker[] = $strKey;
             }
 
             // Store tiny mce fields
-            if ($arrField['eval']['rte'] && strncmp($arrField['eval']['rte'], 'tiny', 4) === 0)
-            {
+            if ($arrField['eval']['rte'] ?? false && strncmp($arrField['eval']['rte'], 'tiny', 4) === 0) {
                 foreach ($this->varValue as $row => $value) {
                     $tinyId = 'ctrl_' . $this->strField . '_row' . $row . '_' . $strKey;
 
@@ -456,8 +415,7 @@ public function generate()
                 $arrTinyMCE[] = $strKey;
             }
 
-            if ($arrField['inputType'] == 'hidden')
-            {
+            if ($arrField['inputType'] == 'hidden') {
                 continue;
             }
         }
@@ -465,8 +423,7 @@ public function generate()
         $intNumberOfRows = max(count($this->varValue), 1);
 
         // always show the minimum number of rows if set
-        if ($this->minCount && ($intNumberOfRows < $this->minCount))
-        {
+        if ($this->minCount && ($intNumberOfRows < $this->minCount)) {
             $intNumberOfRows = $this->minCount;
         }
 
@@ -474,75 +431,57 @@ public function generate()
         $arrHiddenHeader = array();
 
         // Add input fields
-        for ($i = 0; $i < $intNumberOfRows; $i++)
-        {
+        for ($i = 0; $i < $intNumberOfRows; $i++) {
             $this->activeRow = $i;
             $strHidden       = '';
 
             // Walk every column
-            foreach ($this->columnFields as $strKey => $arrField)
-            {
+            foreach ($this->columnFields as $strKey => $arrField) {
                 $strWidget     = '';
                 $blnHiddenBody = false;
 
-                if ($arrField['eval']['hideHead'] == true)
-                {
+                if ($arrField['eval']['hideHead'] ?? false == true) {
                     $arrHiddenHeader[$strKey] = true;
                 }
 
                 // load row specific data (useful for example for default values in different rows)
-                if (isset($this->arrRowSpecificData[$i][$strKey]))
-                {
+                if (isset($this->arrRowSpecificData[$i][$strKey])) {
                     $arrField = array_merge($arrField, $this->arrRowSpecificData[$i][$strKey]);
                 }
 
                 $objWidget = $this->initializeWidget($arrField, $i, $strKey, $this->varValue[$i][$strKey]);
 
                 // load errors if there are any
-                if (!empty($this->arrWidgetErrors[$strKey][$i]))
-                {
-                    foreach ($this->arrWidgetErrors[$strKey][$i] as $strErrorMsg)
-                    {
+                if (!empty($this->arrWidgetErrors[$strKey][$i])) {
+                    foreach ($this->arrWidgetErrors[$strKey][$i] as $strErrorMsg) {
                         $objWidget->addError($strErrorMsg);
                     }
                 }
 
-                if ($objWidget === null)
-                {
+                if ($objWidget === null) {
                     continue;
-                }
-                elseif (is_string($objWidget))
-                {
+                } elseif (is_string($objWidget)) {
                     $strWidget = $objWidget;
-                }
-                elseif ($arrField['inputType'] == 'hidden')
-                {
+                } elseif ($arrField['inputType'] == 'hidden') {
                     $strHidden .= $objWidget->generate();
                     continue;
-                }
-                elseif ($arrField['eval']['hideBody'] == true || $arrField['eval']['hideHead'] == true)
-                {
-                    if ($arrField['eval']['hideBody'] == true)
-                    {
+                } elseif ($arrField['eval']['hideBody'] ?? false == true || ($arrField['eval']['hideHead'] ?? false) == true) {
+                    if ($arrField['eval']['hideBody'] ?? false == true) {
                         $blnHiddenBody = true;
                     }
 
                     $strWidget = $objWidget->parse();
-                }
-                else
-                {
+                } else {
                     $datepicker = '';
                     $colorpicker = '';
                     $tinyMce    = '';
 
                     // Datepicker
-                    if ($arrField['eval']['datepicker'])
-                    {
+                    if ($arrField['eval']['datepicker'] ?? false) {
                         $rgxp   = $arrField['eval']['rgxp'];
                         $format = $this->getNumericDateFormat($rgxp);
 
-                        switch ($rgxp)
-                        {
+                        switch ($rgxp) {
                             case 'datim':
                                 $time = ",\n      timePicker:true";
                                 break;
@@ -582,13 +521,12 @@ public function generate()
                           </script>'; */
                     }
 
-					// Color picker
-					if ($arrField['eval']['colorpicker'])
-					{
-						// Support single fields as well (see #5240)
-						//$strKey = $arrData['eval']['multiple'] ? $this->strField . '_0' : $this->strField;
+                    // Color picker
+                    if ($arrField['eval']['colorpicker'] ?? false) {
+                        // Support single fields as well (see #5240)
+                        //$strKey = $arrData['eval']['multiple'] ? $this->strField . '_0' : $this->strField;
 
-						$colorpicker = ' ' . \Image::getHtml('pickcolor.gif', $GLOBALS['TL_LANG']['MSC']['colorpicker'], 'style="vertical-align:top;cursor:pointer" title="'.specialchars($GLOBALS['TL_LANG']['MSC']['colorpicker']).'" id="moo_' . $objWidget->id . '"') . '
+                        $colorpicker = ' ' . \Image::getHtml('pickcolor.gif', $GLOBALS['TL_LANG']['MSC']['colorpicker'], 'style="vertical-align:top;cursor:pointer" title="' . specialchars($GLOBALS['TL_LANG']['MSC']['colorpicker']) . '" id="moo_' . $objWidget->id . '"') . '
 			  <script>
 				window.addEvent("domready", function() {
 				  new MooRainbow("moo_' . $objWidget->id . '", {
@@ -601,19 +539,17 @@ public function generate()
 				  });
 				});
 			  </script>';
-					}
+                    }
 
 
                     // Tiny MCE
-                    if ($arrField['eval']['rte'] && strncmp($arrField['eval']['rte'], 'tiny', 4) === 0)
-                    {
+                    if ($arrField['eval']['rte'] ?? false && strncmp($arrField['eval']['rte'], 'tiny', 4) === 0) {
                         $tinyMce = $this->getMcWTinyMCEString($objWidget->id, $arrField);
                         $arrField['eval']['tl_class'] .= ' tinymce';
                     }
 
                     // Add custom wizard
-                    if ($arrField['wizard'])
-                    {
+                    if ($arrField['wizard'] ?? false) {
                         $wizard = '';
 
                         $dataContainer = 'DC_' . $GLOBALS['TL_DCA'][$this->strTable]['config']['dataContainer'];
@@ -624,16 +560,12 @@ public function generate()
                         $dc->strInputName = $objWidget->id;
                         $dc->value     = $objWidget->value;
 
-                        if (is_array($arrField['wizard']))
-                        {
-                            foreach ($arrField['wizard'] as $callback)
-                            {
+                        if (is_array($arrField['wizard'])) {
+                            foreach ($arrField['wizard'] as $callback) {
                                 $this->import($callback[0]);
                                 $wizard .= $this->{$callback[0]}->{$callback[1]}($dc, $objWidget);
                             }
-                        }
-                        elseif (is_callable($arrField['wizard']))
-                        {
+                        } elseif (is_callable($arrField['wizard'])) {
                             $wizard .= $arrField['wizard']($dc, $objWidget);
                         }
 
@@ -644,20 +576,16 @@ public function generate()
                 }
 
                 // Build array of items
-                if ($arrField['eval']['columnPos'] != '')
-                {
+                if ($arrField['eval']['columnPos'] ?? false != '') {
                     $arrItems[$i][$objWidget->columnPos]['entry'] .= $strWidget;
                     $arrItems[$i][$objWidget->columnPos]['valign']   = $arrField['eval']['valign'];
                     $arrItems[$i][$objWidget->columnPos]['tl_class'] = $arrField['eval']['tl_class'];
                     $arrItems[$i][$objWidget->columnPos]['hide']     = $blnHiddenBody;
-                }
-                else
-                {
-                    $arrItems[$i][$strKey] = array
-                        (
+                } else {
+                    $arrItems[$i][$strKey] = array(
                         'entry'    => $strWidget,
-                        'valign'   => $arrField['eval']['valign'],
-                        'tl_class' => $arrField['eval']['tl_class'],
+                        'valign'   => $arrField['eval']['valign'] ?? false,
+                        'tl_class' => $arrField['eval']['tl_class'] ?? false,
                         'hide'     => $blnHiddenBody
                     );
                 }
@@ -666,18 +594,12 @@ public function generate()
 
         $strOutput = '';
 
-        if ($this->blnTableless)
-        {
+        if ($this->blnTableless) {
             $strOutput = $this->generateDiv($arrUnique, $arrDatepicker, $arrColorpicker, $strHidden, $arrItems, $arrHiddenHeader);
-        }
-        else
-        {
-            if ($this->columnTemplate != '')
-            {
+        } else {
+            if ($this->columnTemplate != '') {
                 $strOutput = $this->generateTemplateOutput($arrUnique, $arrDatepicker, $arrColorpicker, $strHidden, $arrItems, $arrHiddenHeader);
-            }
-            else
-            {
+            } else {
                 $strOutput = $this->generateTable($arrUnique, $arrDatepicker, $arrColorpicker, $strHidden, $arrItems, $arrHiddenHeader);
             }
         }
@@ -687,11 +609,10 @@ public function generate()
 
     protected function getMcWDatePickerString($strId, $strKey, $rgxp)
     {
-        if (version_compare(VERSION,'3.3','<')) {
+        if (version_compare(VERSION, '3.3', '<')) {
 
             $format = Date::formatToJs($this->getNumericDateFormat($rgxp));
-            switch ($rgxp)
-            {
+            switch ($rgxp) {
                 case 'datim':
                     $time = ",\n      timePicker:true";
                     break;
@@ -720,14 +641,9 @@ protected function getMcWDatePickerString($strId, $strKey, $rgxp)
                             });
                         });
                         </script>';
-
-        }
-
-        else
-        {
+        } else {
             $format = Date::formatToJs($this->getNumericDateFormat($rgxp));
-            switch ($rgxp)
-            {
+            switch ($rgxp) {
                 case 'datim':
                     $time = ",\n      timePicker:true";
                     break;
@@ -761,26 +677,23 @@ protected function getMcWDatePickerString($strId, $strKey, $rgxp)
 
     protected function getMcWTinyMCEString($strId, $arrField)
     {
-        if (version_compare(VERSION, '3.3', '<'))
-        {
+        if (version_compare(VERSION, '3.3', '<')) {
             return "<script>
             tinyMCE.execCommand('mceAddControl', false, 'ctrl_" . $strId . "');
             $('ctrl_" . $strId . "').erase('required');
                 </script>";
         }
 
-        list ($file, $type) = explode('|', $arrField['eval']['rte'], 2);
+        list($file, $type) = explode('|', $arrField['eval']['rte'], 2);
 
-        if (!file_exists(TL_ROOT . '/system/config/' . $file . '.php'))
-        {
+        if (!file_exists(TL_ROOT . '/system/config/' . $file . '.php')) {
             throw new \Exception(sprintf('Cannot find editor configuration file "%s.php"', $file));
         }
 
         // Backwards compatibility
         $language = substr($GLOBALS['TL_LANGUAGE'], 0, 2);
 
-        if (!file_exists(TL_ROOT . '/assets/tinymce/langs/' . $language . '.js'))
-        {
+        if (!file_exists(TL_ROOT . '/assets/tinymce/langs/' . $language . '.js')) {
             $language = 'en';
         }
 
@@ -818,24 +731,20 @@ protected function initializeWidget(&$arrField, $intRow, $strKey, $varValue)
         $arrField['activeRecord'] = $this->activeRecord;
 
         // Toggle line wrap (textarea)
-        if ($arrField['inputType'] == 'textarea' && $arrField['eval']['rte'] == '')
-        {
+        if ($arrField['inputType'] == 'textarea' && $arrField['eval']['rte'] == '') {
             $xlabel .= ' ' . $this->generateImage('wrap.gif', $GLOBALS['TL_LANG']['MSC']['wordWrap'], 'title="' . specialchars($GLOBALS['TL_LANG']['MSC']['wordWrap']) . '" class="toggleWrap" onclick="Backend.toggleWrap(\'ctrl_' . $this->strId . '_row' . $intRow . '_' . $strKey . '\');"');
         }
 
         // Add the help wizard
-        if ($arrField['eval']['helpwizard'])
-        {
+        if ($arrField['eval']['helpwizard'] ?? false) {
             $xlabel .= ' <a href="contao/help.php?table=' . $this->strTable . '&amp;field=' . $this->strField . '" title="' . specialchars($GLOBALS['TL_LANG']['MSC']['helpWizard']) . '" onclick="Backend.openModalIframe({\'width\':735,\'height\':405,\'title\':\'' . specialchars(str_replace("'", "\\'", $arrField['label'][0])) . '\',\'url\':this.href});return false">' . \Image::getHtml('about.gif', $GLOBALS['TL_LANG']['MSC']['helpWizard'], 'style="vertical-align:text-bottom"') . '</a>';
         }
 
         // Add the popup file manager
-        if ($arrField['inputType'] == 'fileTree' || $arrField['inputType'] == 'pageTree')
-        {
+        if ($arrField['inputType'] == 'fileTree' || $arrField['inputType'] == 'pageTree') {
             $path = '';
 
-            if (isset($arrField['eval']['path']))
-            {
+            if (isset($arrField['eval']['path'])) {
                 $path = '?node=' . $arrField['eval']['path'];
             }
 
@@ -848,23 +757,19 @@ protected function initializeWidget(&$arrField, $intRow, $strKey, $varValue)
         }
 
         // Add the table import wizard
-        elseif ($arrField['inputType'] == 'tableWizard')
-        {
+        elseif ($arrField['inputType'] == 'tableWizard') {
             $xlabel .= ' <a href="' . $this->addToUrl('key=table') . '" title="' . specialchars($GLOBALS['TL_LANG']['MSC']['tw_import'][1]) . '" onclick="Backend.getScrollOffset();">' . $this->generateImage('tablewizard.gif', $GLOBALS['TL_LANG']['MSC']['tw_import'][0], 'style="vertical-align:text-bottom;"') . '</a>';
             $xlabel .= ' ' . $this->generateImage('demagnify.gif', '', 'title="' . specialchars($GLOBALS['TL_LANG']['MSC']['tw_shrink']) . '" style="vertical-align:text-bottom; cursor:pointer;" onclick="Backend.tableWizardResize(0.9);"') . $this->generateImage('magnify.gif', '', 'title="' . specialchars($GLOBALS['TL_LANG']['MSC']['tw_expand']) . '" style="vertical-align:text-bottom; cursor:pointer;" onclick="Backend.tableWizardResize(1.1);"');
         }
 
         // Add the list import wizard
-        elseif ($arrField['inputType'] == 'listWizard')
-        {
+        elseif ($arrField['inputType'] == 'listWizard') {
             $xlabel .= ' <a href="' . $this->addToUrl('key=list') . '" title="' . specialchars($GLOBALS['TL_LANG']['MSC']['lw_import'][1]) . '" onclick="Backend.getScrollOffset();">' . $this->generateImage('tablewizard.gif', $GLOBALS['TL_LANG']['MSC']['tw_import'][0], 'style="vertical-align:text-bottom;"') . '</a>';
         }
 
         // Input field callback
-        if (is_array($arrField['input_field_callback']))
-        {
-            if (!is_object($this->{$arrField['input_field_callback'][0]}))
-            {
+        if (is_array($arrField['input_field_callback'] ?? false)) {
+            if (!is_object($this->{$arrField['input_field_callback'][0]})) {
                 $this->import($arrField['input_field_callback'][0]);
             }
 
@@ -873,70 +778,56 @@ protected function initializeWidget(&$arrField, $intRow, $strKey, $varValue)
 
         $strClass = $GLOBALS[(TL_MODE == 'BE' ? 'BE_FFL' : 'TL_FFL')][$arrField['inputType']];
 
-        if ($strClass == '' || !$this->classFileExists($strClass))
-        {
+        if ($strClass == '' || !$this->classFileExists($strClass)) {
             return null;
         }
 
         $arrField['eval']['required'] = false;
 
         // Use strlen() here (see #3277)
-        if ($arrField['eval']['mandatory'])
-        {
-            if (is_array($this->varValue[$intRow][$strKey]))
-            {
-                if (empty($this->varValue[$intRow][$strKey]))
-                {
+        if ($arrField['eval']['mandatory'] ?? false) {
+            if (is_array($this->varValue[$intRow][$strKey])) {
+                if (empty($this->varValue[$intRow][$strKey])) {
                     $arrField['eval']['required'] = true;
                 }
-            }
-            else
-            {
-                if (!strlen($this->varValue[$intRow][$strKey]))
-                {
+            } else {
+                if (!strlen($this->varValue[$intRow][$strKey])) {
                     $arrField['eval']['required'] = true;
                 }
             }
         }
 
         // Hide label except if multiple widgets are in one column
-        if ($arrField['eval']['columnPos'] == '')
-        {
-            $arrField['eval']['tl_class'] = trim($arrField['eval']['tl_class'] . ' hidelabel');
+        if ($arrField['eval']['columnPos'] ?? false == '') {
+            $arrField['eval']['tl_class'] = trim($arrField['eval']['tl_class'] ?? false . ' hidelabel');
         }
 
         // add class to enable easy updating of "name" attributes etc.
         $arrField['eval']['tl_class'] = trim($arrField['eval']['tl_class'] . ' mcwUpdateFields');
 
         // if we have a row class, add that one aswell.
-        if (isset($arrField['eval']['rowClasses'][$intRow]))
-        {
+        if (isset($arrField['eval']['rowClasses'][$intRow])) {
             $arrField['eval']['tl_class'] = trim($arrField['eval']['tl_class'] . ' ' . $arrField['eval']['rowClasses'][$intRow]);
         }
 
         // load callback
-        if (is_array($arrField['load_callback']))
-        {
-            foreach ($arrField['load_callback'] as $callback)
-            {
+        if (is_array($arrField['load_callback'] ?? false)) {
+            foreach ($arrField['load_callback'] as $callback) {
                 $this->import($callback[0]);
                 $varValue = $this->{$callback[0]}->{$callback[1]}($varValue, $this);
             }
-        }
-        elseif (is_callable($arrField['load_callback']))
-        {
+        } elseif (is_callable($arrField['load_callback'] ?? false)) {
             $varValue = $arrField['load_callback']($varValue, $this);
         }
 
         // Convert date formats into timestamps (check the eval setting first -> #3063)
-        $rgxp = $arrField['eval']['rgxp'];
-        $dateFormatErrorMsg="";
-        if (($rgxp == 'date' || $rgxp == 'time' || $rgxp == 'datim') && $varValue != '')
-        {
-            try{
+        $rgxp = $arrField['eval']['rgxp'] ?? false;
+        $dateFormatErrorMsg = "";
+        if (($rgxp == 'date' || $rgxp == 'time' || $rgxp == 'datim') && $varValue != '') {
+            try {
                 $objDate  = new Date($varValue, $this->getNumericDateFormat($rgxp));
-            }catch(\Exception $e){
-                $dateFormatErrorMsg=$e->getMessage();
+            } catch (\Exception $e) {
+                $dateFormatErrorMsg = $e->getMessage();
             }
 
             $varValue = $objDate->tstamp;
@@ -945,7 +836,7 @@ protected function initializeWidget(&$arrField, $intRow, $strKey, $varValue)
         $arrField['activeRow']         = $intRow;
         $arrField['name']              = $this->strName . '[' . $intRow . '][' . $strKey . ']';
         $arrField['id']                = $this->strId . '_row' . $intRow . '_' . $strKey;
-        $arrField['value']             = ($varValue !== '') ? $varValue : $arrField['default'];
+        $arrField['value']             = ($varValue !== '') ? $varValue : $arrField['default'] ?? false;
         $arrField['eval']['tableless'] = true;
 
         $arrData = $this->handleDcGeneral($arrField, $strKey);
@@ -956,7 +847,7 @@ protected function initializeWidget(&$arrField, $intRow, $strKey, $varValue)
         $objWidget->storeValues   = true;
         $objWidget->xlabel        = $xlabel;
         $objWidget->currentRecord = $this->currentRecord;
-        if(!empty($dateFormatErrorMsg)){
+        if (!empty($dateFormatErrorMsg)) {
             $objWidget->addError($e->getMessage());
         }
 
@@ -977,12 +868,11 @@ protected function initializeWidget(&$arrField, $intRow, $strKey, $varValue)
     private function buildWidget($strClass, array $arrData, array &$arrField)
     {
         // Check if the data container driver is an DC-General.
-        if (is_subclass_of($this->objDca, 'ContaoCommunityAlliance\DcGeneral\EnvironmentAwareInterface'))
-        {
+        if (is_subclass_of($this->objDca, 'ContaoCommunityAlliance\DcGeneral\EnvironmentAwareInterface')) {
             return $this->buildWidgetForDcGeneral($arrData, $arrField);
         }
 
-        return new $strClass(\MultiColumnWizard::getAttributesFromDca($arrData, $arrField['name'], $arrField['value'], $arrField['strField'], $this->strTable, $this));
+        return new $strClass(\MultiColumnWizard::getAttributesFromDca($arrData, $arrField['name'], $arrField['value'], $arrField['strField'] ?? false, $this->strTable, $this));
     }
 
     /**
@@ -1065,18 +955,14 @@ private function buildWidgetForDcGeneral(array $arrData, array &$arrField)
     public function handleDcGeneral($arrData, $strName)
     {
         // DcGeneral 2.0 compatibility check.
-        if (is_subclass_of($this->objDca, 'ContaoCommunityAlliance\DcGeneral\EnvironmentAwareInterface'))
-        {
+        if (is_subclass_of($this->objDca, 'ContaoCommunityAlliance\DcGeneral\EnvironmentAwareInterface')) {
             // If options-callback registered, call that one first as otherwise \Widget::getAttributesFromDca will kill
             // our options.
-            if (is_array($arrData['options_callback']))
-            {
+            if (is_array($arrData['options_callback'])) {
                 $arrCallback = $arrData['options_callback'];
                 $arrData['options'] = static::importStatic($arrCallback[0])->{$arrCallback[1]}($this);
                 unset($arrData['options_callback']);
-            }
-            elseif (is_callable($arrData['options_callback']))
-            {
+            } elseif (is_callable($arrData['options_callback'])) {
                 $arrData['options'] = $arrData['options_callback']($this);
                 unset($arrData['options_callback']);
             }
@@ -1084,8 +970,7 @@ public function handleDcGeneral($arrData, $strName)
             /* @var \ContaoCommunityAlliance\DcGeneral\EnvironmentInterface $environment */
             $environment = $this->objDca->getEnvironment();
             // FIXME: begin of legacy code to be removed.
-            if (method_exists($environment, 'getEventPropagator'))
-            {
+            if (method_exists($environment, 'getEventPropagator')) {
                 $event   = new \ContaoCommunityAlliance\DcGeneral\Contao\View\Contao2BackendView\Event\GetPropertyOptionsEvent($environment, $this->objDca->getModel());
                 $event->setPropertyName($strName);
                 $event->setOptions($arrData['options']);
@@ -1099,8 +984,7 @@ public function handleDcGeneral($arrData, $strName)
                     )
                 );
 
-                if ($event->getOptions() !== $arrData['options'])
-                {
+                if ($event->getOptions() !== $arrData['options']) {
                     $arrData['options'] = $event->getOptions();
                 }
             }
@@ -1116,8 +1000,7 @@ public function handleDcGeneral($arrData, $strName)
             );
             $environment->getEventDispatcher()->dispatch($event::NAME, $event);
 
-            if ($event->getOptions() !== $arrData['options'])
-            {
+            if ($event->getOptions() !== $arrData['options']) {
                 $arrData['options'] = $event->getOptions();
             }
         }
@@ -1148,20 +1031,19 @@ protected function generateTable($arrUnique, $arrDatepicker, $arrColorpicker, $s
     {
 
         // generate header fields
-        foreach ($this->columnFields as $strKey => $arrField)
-        {
+        foreach ($this->columnFields as $strKey => $arrField) {
 
-            if ($arrField['eval']['columnPos'])
-            {
+            if ($arrField['eval']['columnPos'] ?? false) {
                 $arrHeaderItems[$arrField['eval']['columnPos']] = '<th></th>';
-            }
-            else
-            {
+            } else {
                 $strHeaderItem = '<th>';
 
                 $strHeaderItem .= (key_exists($strKey, $arrHiddenHeader)) ? '<div class="invisible">' : '';
-                $strHeaderItem .= (is_array($arrField['label'])) ? $arrField['label'][0] : ($arrField['label'] != null ? $arrField['label'] : $strKey);
-                $strHeaderItem .= ((is_array($arrField['label']) && $arrField['label'][1] != '') ? '<span title="' . $arrField['label'][1] . '"><sup>(?)</sup></span>' : '');
+
+                if ($arrField['label'] ?? false) {
+                    $strHeaderItem .= (is_array($arrField['label'])) ? $arrField['label'][0] : ($arrField['label'] != null ? $arrField['label'] : $strKey);
+                    $strHeaderItem .= ((is_array($arrField['label']) && ($arrField['label'][1] ?? false) != '') ? '<span title="' . $arrField['label'][1] . '"><sup>(?)</sup></span>' : '');
+                }
                 $strHeaderItem .= (key_exists($strKey, $arrHiddenHeader)) ? '</div>' : '';
 
                 $arrHeaderItems[] = $strHeaderItem . '</th>';
@@ -1172,8 +1054,7 @@ protected function generateTable($arrUnique, $arrDatepicker, $arrColorpicker, $s
         $return = '
 <table' . (($this->style) ? (' style="' . $this->style . '"') : ('')) . ' data-operations="maxCount[' . ($this->maxCount ? $this->maxCount : '0') . '] minCount[' . ($this->minCount ? $this->minCount : '0') . '] unique[' . implode(',', $arrUnique) . '] datepicker[' . implode(',', $arrDatepicker) . '] colorpicker[' . implode(',', $arrColorpicker) . ']" id="ctrl_' . $this->strId . '" class="tl_modulewizard multicolumnwizard">';
 
-        if ($this->columnTemplate == '')
-        {
+        if ($this->columnTemplate == '') {
             $return .= '
   <thead>
     <tr>
@@ -1183,16 +1064,13 @@ protected function generateTable($arrUnique, $arrDatepicker, $arrColorpicker, $s
   </thead>';
         }
 
-        $return .='
+        $return .= '
   <tbody>';
 
-        foreach ($arrItems as $k => $arrValue)
-        {
+        foreach ($arrItems as $k => $arrValue) {
             $return .= '<tr>';
-            foreach ($arrValue as $itemKey => $itemValue)
-            {
-                if ($itemValue['hide'] == true)
-                {
+            foreach ($arrValue as $itemKey => $itemValue) {
+                if ($itemValue['hide'] == true) {
                     $itemValue['tl_class'] .= ' invisible';
                 }
 
@@ -1228,8 +1106,7 @@ protected function generateTemplateOutput($arrUnique, $arrDatepicker, $arrColorp
         $objTemplate->items = $arrItems;
 
         $arrButtons = array();
-        foreach ($arrItems as $k => $arrValue)
-        {
+        foreach ($arrItems as $k => $arrValue) {
             $arrButtons[$k]       = $this->generateButtonString($k);
         }
         $objTemplate->buttons = $arrButtons;
@@ -1248,10 +1125,8 @@ protected function generateTemplateOutput($arrUnique, $arrDatepicker, $arrColorp
     protected function generateDiv($arrUnique, $arrDatepicker, $arrColorpicker, $strHidden, $arrItems, $arrHiddenHeader = array())
     {
         // generate header fields
-        foreach ($this->columnFields as $strKey => $arrField)
-        {
-            if (key_exists($strKey, $arrHiddenHeader))
-            {
+        foreach ($this->columnFields as $strKey => $arrField) {
+            if (key_exists($strKey, $arrHiddenHeader)) {
                 $strKey = $strKey . ' invisible';
             }
 
@@ -1267,10 +1142,8 @@ protected function generateDiv($arrUnique, $arrDatepicker, $arrColorpicker, $str
         // new array for items so we get rid of the ['entry'] and ['valign']
         $arrReturnItems = array();
 
-        foreach ($arrItems as $itemKey => $itemValue)
-        {
-            if ($itemValue['hide'])
-            {
+        foreach ($arrItems as $itemKey => $itemValue) {
+            if ($itemValue['hide']) {
                 $itemValue['tl_class'] .= ' invisible';
             }
 
@@ -1297,11 +1170,9 @@ protected function generateButtonString($level = 0)
         $return = '';
 
         // Add buttons
-        foreach ($this->arrButtons as $button => $image)
-        {
+        foreach ($this->arrButtons as $button => $image) {
 
-            if ($image === false)
-            {
+            if ($image === false) {
                 continue;
             }
 
@@ -1317,9 +1188,8 @@ protected function generateButtonString($level = 0)
      *
      * @return mixed
      */
-    private function getNumericDateFormat($rgxp){
-        return call_user_func(array("\Contao\Date","getNumeric".ucfirst($rgxp)."Format" ));
+    private function getNumericDateFormat($rgxp)
+    {
+        return call_user_func(array("\Contao\Date", "getNumeric" . ucfirst($rgxp) . "Format"));
     }
-
-
 }