In topic: http://www.phpdocx.com/en/forum/default/post/4053
if text = 0, then table half-empty. Example:
$textFragment = new WordFragment($options['docx']);
$text = array();
$text[] =
array(
'text' => 'centered text',
'underline' => 'single'
);
$paragraphOptions = array(
'textAlign' => 'center',
);
$textFragment->addText($text, $paragraphOptions);
$valuesTable = array(
array(
$textFragment,
),
array(
'Other text',
),
array(
'Other text',
),
);
if replace 'text' => 'centered text' on 'text' => '0', then table clear cell value