symfony
diff --git a/‎src/Symfony/Component/Console/Helper/Table.php
Copy file name to clipboardExpand all lines: src/Symfony/Component/Console/Helper/Table.php
+5Lines changed: 5 additions & 0 deletions b/‎src/Symfony/Component/Console/Helper/Table.php
Copy file name to clipboardExpand all lines: src/Symfony/Component/Console/Helper/Table.php
+5Lines changed: 5 additions & 0 deletions
diff --git a/‎src/Symfony/Component/Console/Tests/Helper/TableTest.php
Copy file name to clipboardExpand all lines: src/Symfony/Component/Console/Tests/Helper/TableTest.php
+18-1Lines changed: 18 additions & 1 deletion b/‎src/Symfony/Component/Console/Tests/Helper/TableTest.php
Copy file name to clipboardExpand all lines: src/Symfony/Component/Console/Tests/Helper/TableTest.php
+18-1Lines changed: 18 additions & 1 deletion
@@ -454,11 +454,16 @@ private function buildTableRows($rows)
      * @param int   $line
      *
      * @return array
+     *
+     * @throws InvalidArgumentException
      */
     private function fillNextRows(array $rows, $line)
     {
         $unmergedRows = array();
         foreach ($rows[$line] as $column => $cell) {
+            if (!is_string($cell) && !$cell instanceof TableCell) {
+                throw new InvalidArgumentException('The cell should always be a string or a TableCell, array given.');
+            }
             if ($cell instanceof TableCell && $cell->getRowspan() > 1) {
                 $nbLines = $cell->getRowspan() - 1;
                 $lines = array($cell);
 
@@ -12,6 +12,7 @@
 namespace Symfony\Component\Console\Tests\Helper;
 
 use PHPUnit\Framework\TestCase;
+use Symfony\Component\Console\Exception\InvalidArgumentException;
 use Symfony\Component\Console\Helper\Table;
 use Symfony\Component\Console\Helper\TableStyle;
 use Symfony\Component\Console\Helper\TableSeparator;
@@ -552,7 +553,7 @@ public function testRenderMultiByte()
         $table = new Table($output = $this->getOutputStream());
         $table
             ->setHeaders(array('■■'))
-            ->setRows(array(array(1234)))
+            ->setRows(array(array(new TableCell(1234))))
             ->setStyle('default')
         ;
         $table->render();
@@ -726,6 +727,22 @@ public function testColumnStyle()
         $this->assertEquals($expected, $this->getOutputContent($output));
     }
 
+    /**
+     * @expectedException InvalidArgumentException
+     * @expectedExceptionMessage The cell should always be a string or a TableCell, array given.
+     */
+    public function testThrowsWhenTheCellInAnArray()
+    {
+        $table = new Table($output = $this->getOutputStream());
+        $table
+            ->setHeaders(array('ISBN', 'Title', 'Author', 'Price'))
+            ->setRows(array(
+                array('99921-58-10-7', array(), 'Dante Alighieri', '9.95'),
+            ));
+
+        $table->render();
+    }
+
     public function testColumnWith()
     {
         $table = new Table($output = $this->getOutputStream());