用pear寫資料下載excel

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參考：PEAR
require_once("PEAR/Writer.php");
//Excel檔名
$filename = "ExcelTest.xls";
$sheet_1 = "SHEET1";
$analys =new Analyse;
$workbook = new Spreadsheet_Excel_Writer(); //新增Excel
//sending HTTP headers
$workbook->send($filename);
$worksheet =& $workbook->addWorksheet($sheet_1); //新增sheet
$worksheet->write(0,0,"DATA"); //寫進資料
$workbook->close();