一段时间以来，我一直在使用 PHPExcel，到目前为止，它已经很好地呈现了我需要的所有图表。但是，当我尝试创建和渲染（使用 jpgraph）股票图表时，出现了一个问题。
下载包中没有设置任何示例，但我注意到 PHPExcel 确实支持股票图表。因此，我查看了 Excel2007 创建的 chart.xml 文件，并将其用作制作我自己的示例的提示。以下是代码：
<?php
/** Error reporting */
error_reporting(E_ALL);
ini_set('display_errors', TRUE);
ini_set('display_startup_errors', TRUE);
date_default_timezone_set('Europe/London');
define('EOL',(PHP_SAPI == 'cli') ? PHP_EOL : '<br />');
date_default_timezone_set('Europe/London');
/**
* PHPExcel
*
* Copyright (C) 2006 - 2013 PHPExcel
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* @category PHPExcel
* @package PHPExcel
* @copyright Copyright (c) 2006 - 2013 PHPExcel (http://www.codeplex.com/PHPExcel)
* @license http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt LGPL
* @version ##VERSION##, ##DATE##
*/
/** PHPExcel */
require_once dirname(__FILE__) . '/../Classes/PHPExcel.php';
$objPHPExcel = new PHPExcel();
$objWorksheet = $objPHPExcel->getActiveSheet();
$objWorksheet->fromArray(
array(
array('Counts', 'Max', 'Max Threshold', 'Min Threshold', 'Min'),
array('Count 10', 10, 50, 0, 5),
array('Count 30', 20, 50, 0, 10),
array('Count 10', 30, 50, 0, 15),
array('Count 10', 10, 50, 0, 0),
), null, 'A1', true
);
$objWorksheet->getStyle('B2:E5')->getNumberFormat()->setFormatCode(PHPExcel_Style_NumberFormat::FORMAT_NUMBER_00);
// Set the Labels for each data series we want to plot
// Datatype
// Cell reference for data
// Format Code
// Number of datapoints in series
// Data values
// Data Marker
$dataseriesLabels = array(
new PHPExcel_Chart_DataSeriesValues('String', 'Worksheet!$B$1', NULL, 1), //Max / High
new PHPExcel_Chart_DataSeriesValues('String', 'Worksheet!$C$1', NULL, 1), //Max Threshold / Opening
new PHPExcel_Chart_DataSeriesValues('String', 'Worksheet!$D$1', NULL, 1), //Min Threshold / Closing
new PHPExcel_Chart_DataSeriesValues('String', 'Worksheet!$E$1', NULL, 1), //Min / Low
);
// Set the X-Axis Labels
// Datatype
// Cell reference for data
// Format Code
// Number of datapoints in series
// Data values
// Data Marker
$xAxisTickValues = array(
new PHPExcel_Chart_DataSeriesValues('String', 'Worksheet!$A$2:$A$5', NULL, 4), // Counts
);
// Set the Data values for each data series we want to plot
// Datatype
// Cell reference for data
// Format Code
// Number of datapoints in series
// Data values
// Data Marker
$dataSeriesValues = array(
new PHPExcel_Chart_DataSeriesValues('Number', 'Worksheet!$B$2:$B$5', NULL, 4),
new PHPExcel_Chart_DataSeriesValues('Number', 'Worksheet!$C$2:$C$5', NULL, 4),
new PHPExcel_Chart_DataSeriesValues('Number', 'Worksheet!$D$2:$D$5', NULL, 4),
new PHPExcel_Chart_DataSeriesValues('Number', 'Worksheet!$E$2:$E$5', NULL, 4),
);
// Build the dataseries
$series = new PHPExcel_Chart_DataSeries(
PHPExcel_Chart_DataSeries::TYPE_STOCKCHART, // plotType
null, // plotGrouping - if we set this to not null, then xlsx throws error
range(0, count($dataSeriesValues)-1), // plotOrder
$dataseriesLabels, // plotLabel
$xAxisTickValues, // plotCategory
$dataSeriesValues // plotValues
);
// Set the series in the plot area
$plotarea = new PHPExcel_Chart_PlotArea(NULL, array($series));
// Set the chart legend
$legend = new PHPExcel_Chart_Legend(PHPExcel_Chart_Legend::POSITION_RIGHT, NULL, false);
$title = new PHPExcel_Chart_Title('Test Stock Chart');
// Create the chart
$chart = new PHPExcel_Chart(
'stock-chart', // name
$title, // title
$legend, // legend
$plotarea, // plotArea
true, // plotVisibleOnly
0, // displayBlanksAs
NULL, // xAxisLabel
NULL // yAxisLabel
);
// Set the position where the chart should appear in the worksheet
$chart->setTopLeftPosition('A7');
$chart->setBottomRightPosition('H20');
// Add the chart to the worksheet
$objWorksheet->addChart($chart);
$rendererName = PHPExcel_Settings::CHART_RENDERER_JPGRAPH;
$rendererLibrary = 'jpgraph';
$rendererLibraryPath = '../' . $rendererLibrary;
if (!PHPExcel_Settings::setChartRenderer(
$rendererName,
$rendererLibraryPath
)) {
die(
'NOTICE: Please set the $rendererName and $rendererLibraryPath values' .
EOL .
'at the top of this script as appropriate for your directory structure'
);
}
$chart->render('chart-stock.jpg');
// Save Excel 2007 file
echo date('H:i:s') , " Write to Excel2007 format" , EOL;
$objWriter = PHPExcel_IOFactory::createWriter($objPHPExcel, 'Excel2007');
$objWriter->setIncludeCharts(TRUE);
$objWriter->save(str_replace('.php', '.xlsx', __FILE__));
echo date('H:i:s') , " File written to " , str_replace('.php', '.xlsx', pathinfo(__FILE__, PATHINFO_BASENAME)) , EOL;
// Echo memory peak usage
echo date('H:i:s') , " Peak memory usage: " , (memory_get_peak_usage(true) / 1024 / 1024) , " MB" , EOL;
// Echo done
echo date('H:i:s') , " Done writing file" , EOL;
echo 'File has been created in ' , getcwd() , EOL;
上面的代码可以很好地生成 xlsx 文件。
但是问题来了，当我尝试使用 jpgraph 渲染图表并保存它时。它抛出一个 PHP 致命错误：
Fatal error: Call to a member function getDataValues() on a non-object in I:\wamp\www\phpexcel\Classes\PHPExcel\Chart\Renderer\jpgraph.php on line 525
我查看了代码，似乎getPlotCategoryByIndex由于某些原因函数不会返回对象。我能想到的最明显的事情是，我没有正确地通过情节？但话又说回来，我想不出为什么以及如何我会错过$dataSeriesValues. 谁能指导我如何解决这个问题？
另外，由于我是新人，我无法放置图像。所以这里有一个下载截图、php文件和生成的xlsx文件的链接。
https://dl.dropboxusercontent.com/u/129745839/PHPExcel%20Stockexchange/33chartcreate-stock.zip
找到了解决方案：
好的，经过大量尝试，我终于解决了。
碰巧的是，股票图表并未完全实施。所以我不得不编写代码来完成它。以下是如何执行此操作：
因为/Classes/PHPExcel/Chart/Renderer/jpgraph.php我们必须替换以下两个函数
private function _renderPlotStock($groupID) {
$seriesCount = $this->_chart->getPlotArea()->getPlotGroupByIndex($groupID)->getPlotSeriesCount();
$plotOrder = $this->_chart->getPlotArea()->getPlotGroupByIndex($groupID)->getPlotOrder();
$seriesPlots = array();
//var_dump($seriesCount);
$dataValues = array();
// Loop through each data series in turn
for($i = 0; $i < $seriesCount; ++$i) {
$dataValuesX = $this->_chart->getPlotArea()->getPlotGroupByIndex($groupID)->getPlotValuesByIndex($i)->getDataValues();
foreach($dataValuesX as $j => $dataValueX) {
$dataValues[$plotOrder[$i]][$j] = $dataValueX;
}
}
if(empty($dataValues)) {
return;
}
$dataValuesPlot = array();
for($j = 0; $j < count($dataValues[0]); $j++) {
for($i = 0; $i < $seriesCount; $i++) {
$dataValuesPlot[] = $dataValues[$i][$j];
}
}
$xAxisLabel = $this->_chart->getPlotArea()->getPlotGroupByIndex($groupID)->getPlotCategoryByIndex(0)->getDataValues();
var_dump($xAxisLabel);
$seriesPlot = new StockPlot($dataValuesPlot, $xAxisLabel);
$seriesPlot->SetWidth(20);
$this->_graph->Add($seriesPlot);
} // function _renderPlotStock()
和
private function _renderStockChart($groupCount) {
require_once('jpgraph_stock.php');
//$this->_renderplotara
$this->_renderCartesianPlotArea('intint');
var_dump($groupCount);
for($groupID = 0; $groupID < $groupCount; ++$groupID) {
$this->_renderPlotStock($groupID);
}
} // function _renderStockChart()
此外，新示例将是这样的
<?php
/** Error reporting */
error_reporting(E_ALL);
ini_set('display_errors', TRUE);
ini_set('display_startup_errors', TRUE);
date_default_timezone_set('Europe/London');
define('EOL',(PHP_SAPI == 'cli') ? PHP_EOL : '<br />');
date_default_timezone_set('Europe/London');
/**
* PHPExcel
*
* Copyright (C) 2006 - 2013 PHPExcel
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* @category PHPExcel
* @package PHPExcel
* @copyright Copyright (c) 2006 - 2013 PHPExcel (http://www.codeplex.com/PHPExcel)
* @license http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt LGPL
* @version ##VERSION##, ##DATE##
*/
/** PHPExcel */
require_once dirname(__FILE__) . '/../Classes/PHPExcel.php';
$objPHPExcel = new PHPExcel();
$objWorksheet = $objPHPExcel->getActiveSheet();
$objWorksheet->fromArray(
array(
array('Counts', 'Max', 'Min', 'Min Threshold', 'Max Threshold' ),
array(10, 10, 5, 0, 50 ),
array(30, 20, 10, 0, 50 ),
array(20, 30, 15, 0, 50 ),
array(40, 10, 0, 0, 50 ),
array(100, 40, 5, 0, 50 ),
), null, 'A1', true
);
$objWorksheet->getStyle('B2:E6')->getNumberFormat()->setFormatCode(PHPExcel_Style_NumberFormat::FORMAT_NUMBER_00);
// Set the Labels for each data series we want to plot
// Datatype
// Cell reference for data
// Format Code
// Number of datapoints in series
// Data values
// Data Marker
$dataseriesLabels = array(
new PHPExcel_Chart_DataSeriesValues('String', 'Worksheet!$B$1', NULL, 1), //Max / Open
new PHPExcel_Chart_DataSeriesValues('String', 'Worksheet!$C$1', NULL, 1), //Min / Close
new PHPExcel_Chart_DataSeriesValues('String', 'Worksheet!$D$1', NULL, 1), //Min Threshold / Min
new PHPExcel_Chart_DataSeriesValues('String', 'Worksheet!$E$1', NULL, 1), //Max Threshold / Max
);
// Set the X-Axis Labels
// Datatype
// Cell reference for data
// Format Code
// Number of datapoints in series
// Data values
// Data Marker
$xAxisTickValues = array(
new PHPExcel_Chart_DataSeriesValues('String', 'Worksheet!$A$2:$A$6', NULL, 5), // Counts
);
// Set the Data values for each data series we want to plot
// Datatype
// Cell reference for data
// Format Code
// Number of datapoints in series
// Data values
// Data Marker
$dataSeriesValues = array(
new PHPExcel_Chart_DataSeriesValues('Number', 'Worksheet!$B$2:$B$6', NULL, 5),
new PHPExcel_Chart_DataSeriesValues('Number', 'Worksheet!$C$2:$C$6', NULL, 5),
new PHPExcel_Chart_DataSeriesValues('Number', 'Worksheet!$D$2:$D$6', NULL, 5),
new PHPExcel_Chart_DataSeriesValues('Number', 'Worksheet!$E$2:$E$6', NULL, 5),
);
// Build the dataseries
$series = new PHPExcel_Chart_DataSeries(
PHPExcel_Chart_DataSeries::TYPE_STOCKCHART, // plotType
null, // plotGrouping - if we set this to not null, then xlsx throws error
range(0, count($dataSeriesValues)-1), // plotOrder
$dataseriesLabels, // plotLabel
$xAxisTickValues, // plotCategory
$dataSeriesValues // plotValues
);
// Set the series in the plot area
$plotarea = new PHPExcel_Chart_PlotArea(NULL, array($series));
// Set the chart legend
$legend = new PHPExcel_Chart_Legend(PHPExcel_Chart_Legend::POSITION_RIGHT, NULL, false);
$title = new PHPExcel_Chart_Title('Test Stock Chart');
$xAxisLabel = new PHPExcel_Chart_Title('Counts');
$yAxisLabel = new PHPExcel_Chart_Title('Values');
// Create the chart
$chart = new PHPExcel_Chart(
'stock-chart', // name
$title, // title
$legend, // legend
$plotarea, // plotArea
true, // plotVisibleOnly
0, // displayBlanksAs
$xAxisLabel, // xAxisLabel
$yAxisLabel // yAxisLabel
);
// Set the position where the chart should appear in the worksheet
$chart->setTopLeftPosition('A7');
$chart->setBottomRightPosition('H20');
// Add the chart to the worksheet
$objWorksheet->addChart($chart);
$rendererName = PHPExcel_Settings::CHART_RENDERER_JPGRAPH;
$rendererLibrary = 'jpgraph';
$rendererLibraryPath = '../' . $rendererLibrary;
if (!PHPExcel_Settings::setChartRenderer(
$rendererName,
$rendererLibraryPath
)) {
die(
'NOTICE: Please set the $rendererName and $rendererLibraryPath values' .
EOL .
'at the top of this script as appropriate for your directory structure'
);
}
if(file_exists('chart-stock.jpg')) {
unlink('chart-stock.jpg');
}
$chart->render('chart-stock.jpg');
// Save Excel 2007 file
echo date('H:i:s') , " Write to Excel2007 format" , EOL;
$objWriter = PHPExcel_IOFactory::createWriter($objPHPExcel, 'Excel2007');
$objWriter->setIncludeCharts(TRUE);
$filename = str_replace('.php', '.xlsx', __FILE__);
if(file_exists($filename)) {
unlink($filename);
}
$objWriter->save($filename);
echo date('H:i:s') , " File written to " , str_replace('.php', '.xlsx', pathinfo(__FILE__, PATHINFO_BASENAME)) , EOL;
// Echo memory peak usage
echo date('H:i:s') , " Peak memory usage: " , (memory_get_peak_usage(true) / 1024 / 1024) , " MB" , EOL;
// Echo done
echo date('H:i:s') , " Done writing file" , EOL;
echo 'File has been created in ' , getcwd() , EOL;
希望有人觉得它有用。