PHPExcel - Excel的PHP处理引擎
PHPExcel 提供了一系列的 PHP语言 类，让你可以轻松地读写操作以下格式的文件：.xls/.xlsx/.csv/.ods/Gnumeric/PDF/HTML...
主要功能包括：设置文件的meta信息，多工作表，定制字体和样式，边框和填充，图片，计算公式，转换文件类型等等
之前我只是用到了导出数据到列表格式的Excel文件，这次需要实现的目标是：JSON->phpexcel->excel+chart(line/pie/etc...)
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本系列《phpexcel图形图表》文章梗概如下：
phpexcel图形图表(一)-入门----------------介绍PHPExcel类库和画图的基本步骤
phpexcel图形图表(二)-图形----------------以最常用的line/pie/bar/radar图形为例作图，并对比和分析4种API
phpexcel图形图表(三)-进阶----------------让图形美化，完成一些高级的效果
phpexcel图形图表(三)-高级----------------PHPExcel能完成的图表相关的高级功能
原创文章，转载请注明出处：http://www.cnblogs.com/phpgcs
本篇文章梗概：
1. 下载并研究PHPExcel仓库
2. PHPExcel画图和普通数据处理的区别
3. 注意事项总结
首先最好是把PHPExcel的项目下载到本地来研究
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git clone git@github.com:PHPOffice/PHPExcel.git
请先仔细阅读README.md说明文档，因为里面包含了很重要的版本信息，尤其是读写Excel文档的版本范围信息
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### Reading
* BIFF 5-8 (.xls) Excel 95 and above
* Office Open XML (.xlsx) Excel 2007 and above
* SpreadsheetML (.xml) Excel 2003
* Open Document Format/OASIS (.ods)
* Gnumeric
* HTML
* SYLK
* CSV
### Writing
* BIFF 8 (.xls) Excel 95 and above
* Office Open XML (.xlsx) Excel 2007 and above
* HTML
* CSV
* PDF (using either the tcPDF, DomPDF or mPDF libraries, which need to be installed separately)
## Requirements
* PHP version 5.2.0 or higher
* PHP extension php_zip enabled (required if you need PHPExcel to handle .xlsx .ods or .gnumeric files)
* PHP extension php_xml enabled
* PHP extension php_gd2 enabled (optional, but required for exact column width autocalculation)
进入Examples文件夹，OhMygod,可以完成这么多的功能呀
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01pharSimple.php
01simple-download-pdf.php
01simple-download-xls.php
01simple-download-xlsx.php
01simplePCLZip.php
01simple.php
02types.php
02types-xls.php
03formulas.php
04printing.php
05featuredemo.inc.php
05featuredemo.php
06largescale.php
06largescale-with-cellcaching.php
06largescale-with-cellcaching-sqlite3.php
06largescale-with-cellcaching-sqlite.php
06largescale-xls.php
07readerPCLZip.php
07reader.php
08conditionalformatting2.php
08conditionalformatting.php
09pagebreaks.php
10autofilter.php
10autofilter-selection-1.php
10autofilter-selection-2.php
10autofilter-selection-display.php
11documentsecurity.php
11documentsecurity-xls.php
12cellProtection.php
13calculation.php
14excel5.php
15datavalidation.php
15datavalidation-xls.php
16csv.php
17html.php
18extendedcalculation.php
19namedrange.php
20readexcel5.php
21pdf.php
22heavilyformatted.php
23sharedstyles.php
24readfilter.php
25inmemoryimage.php
26utf8.php
27imagesexcel5.php
28iterator.php
29advancedvaluebinder.php
30template.php
31docproperties_write.php
31docproperties_write-xls.php
32chartreadwrite.php
33chartcreate-area.php
33chartcreate-bar.php
33chartcreate-bar-stacked.php
33chartcreate-column-2.php
33chartcreate-column.php
33chartcreate-composite.php
33chartcreate-line.php
33chartcreate-multiple-charts.php
33chartcreate-pie.php
33chartcreate-radar.php
33chartcreate-scatter.php
33chartcreate-stock.php
34chartupdate.php
35chartrender.php
36chartreadwriteHTML.php
36chartreadwritePDF.php
37page_layout_view.php
38cloneWorksheet.php
40duplicateStyle.php
Excel2003XMLReader.php
Excel2003XMLTest.xml
.gitignore
GnumericReader.php
GnumericTest.gnumeric
images/
list
.~lock.33chartcreate-line.xlsx#
OOCalcReaderPCLZip.php
OOCalcReader.php
OOCalcTest.ods
Quadratic2.php
Quadratic.php
Quadratic.xlsx
runall.php
SylkReader.php
SylkTest.slk
templates/
XMLReader.php
XMLTest.xml
好吧，这次的任务是chart，就先从 line chart 入手，相关的文件只有一个 ***line.php
我们先直接运行一把：
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liuyuan@ebuinfo:/var/www/projects/PHPExcel/Examples$ php 33chartcreate-line.php
07:13:22 Write to Excel2007 format
07:13:23 File written to 33chartcreate-line.xlsx
07:13:23 Peak memory usage: 8.75 MB
07:13:23 Done writing file
File has been created in /var/www/projects/PHPExcel/Examples
