The principle of php exporting excel table

Before understanding how PHP exports excel tables, let’s first understand the essence of excel.

excel is divided into two major versions: excel2007 (suffix. Compress the document. excel2003: essentially a binary file.

After understanding excel, let’s introduce the principle of exporting excel from PHP:

For excel2007, since its essence is a collection document of xml, the export process is The process of parsing xml; for excel2003, since its essence is a binary file, the process of exporting excel will first open the binary file, then read the internal information, and convert the internal information into identifiable content.

Two export methods:

Method 1: Use PHPExcel class library

//引入PHPExcel库文件（路径根据自己情况） include './phpexcel/Classes/PHPExcel.php'; $excel = new PHPExcel(); //创建对象 $letter = array('A','B','C','D','E','F','F','G'); //Excel表格式,这里简略写了8列 $tableheader = array('学号','姓名','性别','年龄','班级');//表头数组 //填充表头信息 for($i = 0;$i < count($tableheader);$i++) { $excel->getActiveSheet()->setCellValue("$letter[$i]1","$tableheader[$i]"); } $data = array( array('1','小王','男','20','100'), array('2','小李','男','20','101'), array('3','小张','女','20','102'), array('4','小赵','女','20','103') ); //填充表格信息 for ($i = 2;$i <= count($data) + 1;$i++) { $j = 0; foreach ($data[$i - 2] as $key=>$value) { $excel->getActiveSheet()->setCellValue("$letter[$j]$i","$value"); $j++; } } $write = new PHPExcel_Writer_Excel5($excel); header("Pragma: public"); header("Expires: 0"); header("Cache-Control:must-revalidate, post-check=0, pre-check=0"); header("Content-Type:application/force-download"); header("Content-Type:application/vnd.ms-execl"); header("Content-Type:application/octet-stream"); header("Content-Type:application/download");; header('Content-Disposition:attachment;filename="testdata.xls"'); header("Content-Transfer-Encoding:binary"); $write->save('php://output');

Method 2: Simple PHP export excel, does not apply to any external class library file

header("Content-type: text/csv"); header("Content-Disposition: attachment; filename=reply.csv"); header("Pragma: no-cache"); header("Expires: 0"); $output = fopen("php://output", "w"); $header = array('学号','姓名','性别','年龄','班级'); $converter = function($value) { return iconv('utf-8', 'gbk', $value); }; $header = array_map($converter, $header); $list = array( array('1','小王','男','20','100'), array('2','小李','男','20','101'), array('3','小张','女','20','102'), array('4','小赵','女','20','103') ); fputcsv($output, $header); foreach($list as $k => $v) { $csvrow = array_map($converter, array( $v[0], $v[1], $v[2], $v[3], $v[4], )); fputcsv($output, $csvrow); } fclose($output);

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