PHP 使用 PHPExcel 库生成 Excel 文件

PHPExcel 是用来操作Office Excel 文档的一个PHP类库，它基于微软的OpenXML标准和PHP语言。可以使用它来读取、写入不同格式的电子表格，如 Excel (BIFF) .xls, Excel 2007 (OfficeOpenXML) .xlsx, CSV, Libre/OpenOffice Calc .ods, Gnumeric, PDF, HTML等等

调用代码示例：

1. $php_excel = new PHPExcel();
2. $properties = $php_excel->getProperties();
3. $properties->setCreator("www.1024i.com");
4. $properties->setLastModifiedBy("www.loubarnes.com");
5. $properties->setTitle("PHP 生成 Excel");
6. $properties->setSubject("PHP 生成 Excel");
7. $properties->setDescription('PHP 生成 Excel');
8. $properties->setKeywords("PHP 生成 Excel");
9. $properties->setCategory("PHP 生成 Excel");
10. $php_excel->setActiveSheetIndex(0);
11. $active_sheet = $php_excel->getActiveSheet();
12. $active_sheet->setTitle('用户');
13. // 自动调节大小
14. $active_sheet->getColumnDimension('A')->setWidth(8);
15. $active_sheet->getColumnDimension('B')->setWidth(12);
16. $active_sheet->getColumnDimension('C')->setWidth(8);
17. $active_sheet->getColumnDimension('D')->setWidth(8);
18. $active_sheet->getColumnDimension('E')->setWidth(24);
19. $active_sheet->getColumnDimension('F')->setWidth(60);
20. $active_sheet->setCellValue('A1', 'PHP 生成 Excel 示例' );
21. $active_sheet->mergeCells('A1:F1'); // 合并表头单元格
22. $active_sheet->getRowDimension(1)->setRowHeight(30); // 设置表头1高度
23. $style = array(
24. 'font' => array(
25. 'size' => 20
26. ),
27. 'alignment' => array(
28. 'horizontal' => PHPExcel_Style_Alignment::HORIZONTAL_CENTER,
29. ),
30. 'borders' => array(
31. 'bottom' => array(
32. 'style' => PHPExcel_Style_Border::BORDER_THIN
33. )
34. )
35. );
36. $active_sheet->getStyle('A1:F1')->applyFromArray($style); // 设置表头1样式
37. $active_sheet->getRowDimension(2)->setRowHeight(30); // 设置表头2高度
38. // 设置表头2名称
39. $active_sheet->setCellValue('A2', '编号');
40. $active_sheet->setCellValue('B2', '名称');
41. $active_sheet->setCellValue('C2', '性别');
42. $active_sheet->setCellValue('D2', '年龄');
43. $active_sheet->setCellValue('E2', '出生日期');
44. $active_sheet->setCellValue('F2', '备注');
45. // 表头(编号, 名称, 性别, 出生日期)样式
46. $style = array(
47. 'font' => array(
48. 'bold' => true
49. ),
50. 'alignment' => array(
51. 'horizontal' => PHPExcel_Style_Alignment::HORIZONTAL_CENTER,
52. ),
53. 'borders' => array(
54. 'bottom' => array(
55. 'style' => PHPExcel_Style_Border::BORDER_THIN
56. )
57. )
58. );
59. $active_sheet->getStyle('A2:E2')->applyFromArray($style);
60. // 表头(备注)样式
61. $style = array(
62. 'font' => array(
63. 'bold' => true
64. ),
65. 'borders' => array(
66. 'bottom' => array(
67. 'style' => PHPExcel_Style_Border::BORDER_THIN
68. )
69. )
70. );
71. $active_sheet->getStyle('F2')->applyFromArray($style);
72. // 内容样式
73. $style = array(
74. 'alignment' => array(
75. 'horizontal' => PHPExcel_Style_Alignment::HORIZONTAL_CENTER,
76. )
77. );
78. $active_sheet->getStyle('A:E')->applyFromArray($style);
79. $ids = post::_ints('id', array());
80. $notes = post::_strings('note', array());
81. $i = 3;
82. if(count($ids))
83. {
84. foreach($ids as $id)
85. {
86. $note = $notes[$i-3];
87. foreach($this->data as $data)
88. {
89. if($data['id']==$id)
90. {
91. $active_sheet->setCellValue('A'.$i, $id );
92. $active_sheet->setCellValue('B'.$i, $data['name'] );
93. $active_sheet->setCellValue('C'.$i, $data['male'] );
94. $active_sheet->setCellValue('D'.$i, $data['age'] );
95. $active_sheet->setCellValue('E'.$i, $data['birth_date'] );
96. $active_sheet->setCellValue('F'.$i, $note );
97. break;
98. }
99. }
100. $i++;
101. }
102. }
103. header('Content-Type: application/vnd.ms-excel');
104. header('Content-Disposition: attachment; filename="用户.xls"');
105. $writer = PHPExcel_IOFactory::createWriter($php_excel, 'Excel5');
106. $writer->save('php://output');

官方示例文档中有输出为 PDF 的示例程序：

1. // Change these values to select the Rendering library that you wish to use
2. // and its directory location on your server
3. //$rendererName = PHPExcel_Settings::PDF_RENDERER_TCPDF;
4. $rendererName = PHPExcel_Settings::PDF_RENDERER_MPDF;
5. //$rendererName = PHPExcel_Settings::PDF_RENDERER_DOMPDF;
6. //$rendererLibrary = 'tcPDF5.9';
7. $rendererLibrary = 'mPDF5.4';
8. //$rendererLibrary = 'domPDF0.6.0beta3';
9. $rendererLibraryPath = dirname(__FILE__).'/../../../libraries/PDF/' . $rendererLibrary;
10. // ..........
11. if (!PHPExcel_Settings::setPdfRenderer(
12. $rendererName,
13. $rendererLibraryPath
14. )) {
15. die(
16. 'NOTICE: Please set the $rendererName and $rendererLibraryPath values' .
17. '<br />' .
18. 'at the top of this script as appropriate for your directory structure'
19. );
20. }
21. // Redirect output to a client’s web browser (PDF)
22. header('Content-Type: application/pdf');
23. header('Content-Disposition: attachment;filename="01simple.pdf"');
24. header('Cache-Control: max-age=0');
25. $objWriter = PHPExcel_IOFactory::createWriter($objPHPExcel, 'PDF');
26. $objWriter->save('php://output');

使用这段代码时需要引入PHP 版本的 PDF 库，支持三个版本的：

1. //$rendererName = PHPExcel_Settings::PDF_RENDERER_TCPDF;
2. $rendererName = PHPExcel_Settings::PDF_RENDERER_MPDF;
3. //$rendererName = PHPExcel_Settings::PDF_RENDERER_DOMPDF;

即 TCPDF, MPDF，DOMPDF，官方网址分别是：

http://www.tcpdf.org/ 
http://www.mpdf1.com/mpdf/ 
https://github.com/dompdf/dompdf

推荐使用TCPDF，下载后复制到项目中，然后代码中 $rendererLibraryPath 改为对应的路径，然后就可以正常输出 PDF 文档了。

对于网上很多用户反映的 PDF 中文乱码问题，解决方法如下：

1. 所有程序及文档全部使用 UTF-8 编码
2. 在 tcpdf_autoconfig.php 中设置中文字库。