要使用纯PHP创建或编辑Excel电子表格，我们将使用PHPExcel库，它可以读写许多电子表格格式，包括xls，xlsx，ods和csv。在我们继续之前，仔细检查您的服务器上是否有PHP 5.2或更高版本以及安装了以下PHP扩展：php_zip，php_xml和php_gd2。

创建电子表格

创建电子表格是PHP应用程序中最常见的用例之一，用于将数据导出到Excel电子表格。查看以下代码，了解如何使用PHPExcel创建示例Excel电子表格：

// Include PHPExcel library and create its object
require('PHPExcel.php');

$phpExcel = new PHPExcel;

// Set default font to Arial
$phpExcel- getDefaultStyle()- getFont()- setName('Arial');

// Set default font size to 12
$phpExcel- getDefaultStyle()- getFont()- setSize(12);

// Set spreadsheet properties – title, creator and description
$phpExcel - getProperties()- setTitle("Product list");
$phpExcel - getProperties()- setCreator("Voja Janjic");
$phpExcel - getProperties()- setDescription("PHP Excel spreadsheet testing.");

// Create the PHPExcel spreadsheet writer object
// We will create xlsx file (Excel 2007 and above)
$writer = PHPExcel_IOFactory::createWriter($phpExcel, "Excel2007");

// When creating the writer object, the first sheet is also created
// We will get the already created sheet
$sheet = $phpExcel - getActiveSheet();

// Set sheet title
$sheet- setTitle('My product list');

// Create spreadsheet header
$sheet - getCell('A1')- setValue('Product');
$sheet - getCell('B1')- setValue('Quanity');
$sheet - getCell('C1')- setValue('Price');

// Make the header text bold and larger
$sheet- getStyle('A1:D1')- getFont()- setBold(true)- setSize(14);

// Insert product data


// Autosize the columns
$sheet- getColumnDimension('A')- setAutoSize(true);
$sheet- getColumnDimension('B')- setAutoSize(true);
$sheet- getColumnDimension('C')- setAutoSize(true);

// Save the spreadsheet
$writer- save('products.xlsx');

如果要下载电子表格而不是将其保存到服务器，请执行以下操作：

header('Content-Type: application/vnd.ms-excel');
header('Content-Disposition: attachment;filename="file.xlsx"');
header('Cache-Control: max-age=0');
$writer- save('php://output');

编辑现有电子表格

在PHP中编辑电子表格与创建电子表格类似：

// Include PHPExcel library and create its object
require('PHPExcel.php');

// Load an existing spreadsheet
$phpExcel = PHPExcel_IOFactory::load('products.xlsx');

// Get the first sheet
$sheet = $phpExcel - getActiveSheet();

// Remove 2 rows starting from the row 2
$sheet - removeRow(2,2);

// Insert one new row before row 2
$sheet- insertNewRowBefore(2, 1);

// Create the PHPExcel spreadsheet writer object
// We will create xlsx file (Excel 2007 and above)
$writer = PHPExcel_IOFactory::createWriter($phpExcel, "Excel2007");

// Save the spreadsheet
$writer- save('products.xlsx');

准备电子表格进行打印

要准备电子表格进行打印，我们将设置纸张方向，尺寸和边距：

$sheet- getPageSetup()- setOrientation(PHPExcel_Worksheet_PageSetup::ORIENTATION_LANDSCAPE);
$sheet -  getPageSetup()- setPaperSize(PHPExcel_Worksheet_PageSetup::PAPERSIZE_A4); 
$sheet- getPageMargins()- setTop(1);
$sheet - getPageMargins()- setRight(0.75);
$sheet - getPageMargins()- setLeft(0.75);
$sheet - getPageMargins()- setBottom(1);

将PHPExcel与Laravel一起使用

PHPExcel库也可以在Laravel框架中使用。查看以下PHP包（此处）并通过Composer安装它。完成安装步骤后，您可以使用以下代码将数据从数据库导出到Excel电子表格中：

Excel::create('Products', function($excel) {

        // Set the title
        $excel- setTitle('Product list');
  
        // Set the creator
        $excel- setCreator('Voja Janjic');
  
        // Set description
        $excel- setDescription('PHP Excel spreadsheet testing');
  
        $excel- sheet('Products', function($sheet) {
   
                // Get data from the database
                $products = Product::all(); 
  
                // Generate header row
                $sheet- row(1, array(
                        'ID',
                        'Product',
                        'Price',
                        'Quantity',     
                ));
  
                // Generate data rows 
                $i = 2; 
                foreach($products as $product) {    
                        $sheet- row($i, array(
                                   $product- product_id,
                                   $product- product_name,
                                   $product- price,
                                   $variety- quantity,    
                        ));
   
                        $i++;
                }

        });

})- export('xlsx');