PhpOffice\PhpPresentation\Shape\Chart\Series::setShowSeriesName PHP Method

    public function setShowSeriesName($value)
    {
        $this->showSeriesName = $value;
        return $this;
    }

 public function testChartBarHorizontal()
 {
     $oSeries = new Series('Series', array('Jan' => 1, 'Feb' => 5, 'Mar' => 2));
     $oSeries->setShowSeriesName(true);
     $oSeries->getDataPointFill(0)->setFillType(Fill::FILL_SOLID)->setStartColor(new Color('FF4672A8'));
     $oSeries->getDataPointFill(1)->setFillType(Fill::FILL_SOLID)->setStartColor(new Color('FFAB4744'));
     $oSeries->getDataPointFill(2)->setFillType(Fill::FILL_SOLID)->setStartColor(new Color('FF8AA64F'));
     $oBar = new Bar();
     $oBar->setBarDirection(Bar::DIRECTION_HORIZONTAL);
     $oBar->addSeries($oSeries);
     $phpPresentation = new PhpPresentation();
     $oSlide = $phpPresentation->getActiveSlide();
     $oChart = $oSlide->createChartShape();
     $oChart->getPlotArea()->setType($oBar);
     $pres = TestHelperDOCX::getDocument($phpPresentation, 'ODPresentation');
     $element = '/office:document-content/office:body/office:chart/chart:chart';
     $this->assertTrue($pres->elementExists($element, 'Object 1/content.xml'));
     $this->assertEquals('chart:bar', $pres->getElementAttribute($element, 'chart:class', 'Object 1/content.xml'));
     $element = '/office:document-content/office:automatic-styles/style:style[@style:name=\'stylePlotArea\']/style:chart-properties';
     $this->assertTrue($pres->elementExists($element, 'Object 1/content.xml'));
     $this->assertEquals('true', $pres->getElementAttribute($element, 'chart:vertical', 'Object 1/content.xml'));
     $this->assertFalse($pres->attributeElementExists($element, 'chart:three-dimensional', 'Object 1/content.xml'));
     $this->assertFalse($pres->attributeElementExists($element, 'chart:right-angled-axes', 'Object 1/content.xml'));
 }