$this->createTable('', [
<br />
<b>Warning</b>:  Invalid argument supplied for foreach() in <b>/var/www/webportal/vendor/yiisoft/yii2/views/_createTable.php</b> on line <b>11</b><br />
        ]);
<br />
<b>Fatal error</b>:  Uncaught Error: Using $this when not in object context in /var/www/webportal/vendor/yiisoft/yii2/views/_createTable.php:19
Stack trace:
#0 {main}
  thrown in <b>/var/www/webportal/vendor/yiisoft/yii2/views/_createTable.php</b> on line <b>19</b><br />