Phpword: pie chart is blank

[cha0ran]

This is:

• [x] a bug report

Expected Behavior

Insert a pie chart, but after the word is exported, the chart is blank.

I am a Chinese user, English is not good. Please forgive me.

Context

• PHP version: 7.1.9
• PHPWord version: 0.14

[troosan]

do you have a sample code that I can run that will reproduce this?

[cha0ran]

@troosan
samples/Sample_32_Chart.php and test.php.
The code in the data using Chinese characters, to facilitate testing compatibility, you can replace it with English characters.

test.php:

<?php
namespace test;

use PhpOffice\PhpWord\PhpWord;
use PhpOffice\PhpWord\Shared\Converter;
use PhpOffice\PhpWord\SimpleType\Jc;

require_once 'vendor/autoload.php';

$phpword = new PhpWord();
$phpword->addTitleStyle(1, ['name' => 'Microsoft YaHei', 'size' => 22], ['alignment' => Jc::CENTER]);

$section = $phpword->addSection();

$section->addTitle('This is a test document');
$section->addText('Document presentation generates a pie chart.', ['name' => '宋体', 'size' => 12]);

$categories = ['正面', '中性', '负面'];
$series = [6, 324, 47];
$chart = $section->addChart('pie', $categories, $series);
$chart->getStyle()->setWidth(Converter::inchToEmu(2.5))->setHeight(Converter::inchToEmu(2));

$phpword->save('test.docx', 'Word2007', true);

The data found in the chart is empty, open with Microsoft Word 2016.

[cha0ran]

can anyone help me?

[troosan]

did not have the time to look at it. But it seems Word 2016 does not like the way the data is stored.

[fedegar]

Hi troosan,
I have a similar issue. The data in chart1.xml is incomplete, "c:v" elements have no value.
If I change Chart.php as follows it works:

$xmlWriter->startElement('c:v');
//$this->writeText($value);
$xmlWriter->text($value);
$xmlWriter->endElement(); // c:v

Also works with writeRaw(), so its not related to the isOutputEscapingEnabled setting. Any idea why this is happening? I'm using PHP 5.3.10.
Thanks!

[Vladirien]

@fedegar This fix also works for me on PHP 7.1.9

[troosan]

@fedegar

thanks for the fix, I've committed this change on the develop branch.

[arc113]

@fedegar I applied your suggested change in the /src/phpword/writter/word2007/Chart.php
What is the value of the $value you mentioned? After compiling the php code, it says undefined variable $value.
Thanks

[arc113]

@fedegar Never Mind, I was editing the wrong file...got it. Thanks
Also, could you tell me how to get the 'Data Labels' in the pie chart?