点击button下载文件并导出到Excel
（1） 表：学生
（2） functions.php
<?php function DisplaySearchStudentSummaryForm() { ?> <form method="post" action="<?php echo $_SERVER['PHP_SELF']; ?>"> <table class="displaytable"> <tr> <td width="150" class="dtdr" align="right">Student Name : </td> <td width="450" class="dtd"><input type="text" name="studentname" size="30"/></td> </tr> </table> <table> <tr align="center" valign="top"> <td width="300"><input type="submit" name="submit" value="Export" class="buttons"></td> <td width="300"><input name="reset" type="reset" id="reset" value="Reset" class="buttons"></td> </tr> </table> </form> <?php } function SearchStudentSummary($studentname) { include_once('dbconnection.php'); $q = "SELECT studentname, grade FROM student WHERE studentname like '$studentname%'"; $r = mysqli_query($dbc, $q); while($row = mysqli_fetch_array($r, MYSQLI_ASSOC)) { $record[] = $row; } return $record; } function ExportToExcel($record) { [?] } ?> （3） test.php
<?php session_start(); if(!isset($_SESSION["studentname"])) { header("Location: index.php"); } include_once('functions.php'); ?> <html> <head> <link rel="stylesheet" type="text/css" href="style.css"> </head> <body> <table width="1100" border="0" cellspacing="0" cellpadding="0"> <tr> <td> <?php if(isset($_POST['submit']) && ($_POST['submit'] == 'Export')) { $studentname = $_POST['studentname']; $record = SearchStudentSummary($studentname); ExportToExcel($record); } else { DisplaySearchStudentSummaryForm(); } ?> </td> </tr> <table> </body> </html>
（4）目前我的输出如下图： 
（5）现在我在studentname文本框中input“Wong”，然后点击Exportbutton：
– >find包含单词“Wong”的学生表。
– >使用PHP_XLSXWriter库下载excel文件。
– >使用PHP_XLSXWriter库将结果导出到excel文件。
（6）XLSXWriter代码：
<?php include('./PHP_XLSXWriter-master/xlsxwriter.class.php'); //---Download excel file--- $filename = "student.xlsx"; header('Content-Disposition: attachment; filename="'.XLSXWriter::sanitize_filename($filename).'"'); header('Content-Type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet'); header('Content-Transfer-Encoding: binary'); header('Cache-Control: must-revalidate'); header('Pragma: public'); //---Export excel file--- $header = array('studentname'=>'string', 'grade'=>'string'); for($i = 0; $i < count($record); $i++) { $data = array(array($record[$i]['studentname'],$record[$i]['grade'])); } $writer = new XLSXWriter(); $writer->writeSheet($data,'Sheet1',$header); $writer->writeToStdOut(); exit(0); ?>
我不知道如何把我的XLSXWriter代码放到[？]部分的ExportToExcel（）函数中。 有人能帮我吗？