Merge pull request #1637 from bhattnishant/master

To support PreserveText inside sub container

Author: troosan

src/PhpWord/Element/AbstractContainer.php

@@ -254,7 +254,7 @@ private function checkValidity($method)
         // Special condition, e.g. preservetext can only exists in cell when
         // the cell is located in header or footer
         $validSubcontainers = array(
-            'PreserveText'  => array(array('Cell'), array('Header', 'Footer')),
+            'PreserveText'  => array(array('Cell'), array('Header', 'Footer', 'Section')),
             'Footnote'      => array(array('Cell', 'TextRun'), array('Section')),
             'Endnote'       => array(array('Cell', 'TextRun'), array('Section')),
         );

tests/PhpWord/Element/CellTest.php

@@ -233,7 +233,7 @@ public function testAddPreserveTextNotUTF8()
     public function testAddPreserveTextException()
     {
         $oCell = new Cell();
-        $oCell->setDocPart('Section', 1);
+        $oCell->setDocPart('TextRun', 1);
         $oCell->addPreserveText('text');
     }