<?php
class xlsTools
{
var $inEncode = 'utf-8';
var $outEncode = 'gb2312';
protected $rowCount; //存储已经存在内存中的记录条数
protected $rowFlushCount;// 一次flush的数据条数
public function __construct($rowFlushCount = 1000)
{
$this->rowFlushCount = $rowFlushCount;
$this->rowCount = 0;
}
public function __destruct()
{
// TODO: Implement __destruct() method.
}
public function start($param)
{
// todo 文件名这里建议允许自定 ddcoder
$filename = $param['type'] . '-' . date('YmdHis') . '(' . $param['name'] . ')';
$this->doStart($param['title'], $filename);
}
public function doStart($keys, $filename)
{
$this->download($filename . '.xls');
// php输出到缓冲区
echo '<head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <style>td{vnd.ms-excel.numberformat:@}</style></head>';
echo '<table width="100%" border="1">';
// 有时候需要自定义表头 ddcdoer 修改于2017-08-26
if ($keys) {
echo '<tr><th filter=all>' . implode('</th><th filter=all>', $keys) . "</th> </tr>\r\n";
}
//刷新缓冲区
flush();
}
//下载文件
//$mimeType = 'application/force-download'
//Content-Type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
//$mimeType = 'application/vnd.ms-excel'
public function download($fname = 'data', $data = null, $mimeType = 'application/force-download')
{
if (headers_sent($file, $line)) {
echo 'Header already sent @ ' . $file . ':' . $line;
exit();
}
//header('Cache-Control: no-cache;must-revalidate');
//fix ie download bug header('Pragma: no-cache, no-store');
header("Expires: Wed, 26 Feb 1997 08:21:57 GMT");
if (strpos($_SERVER["HTTP_USER_AGENT"], 'MSIE')) {
$fname = urlencode($fname);
header('Content-type: ' . $mimeType);
} else {
header('Content-type: ' . $mimeType . ';charset=utf-8');
}
header("Content-Disposition: attachment; filename=\"" . $fname . '"');
//header( "Content-Description: File Transfer");
if ($data) {
header('Content-Length: ' . strlen($data));
echo $data;
exit();
}
}
/**
* 生成并下载csv文件
*/
public function csv_export_f($keys, $expData, $fileName)
{
// export file
$csv = '';
foreach ($keys as $key) {
$csv .= '"' . iconv("UTF-8", "gb2312", $key) . '",';
}
$csv .= "\n";
foreach ($expData as $expArr) {
foreach ($expArr as $e_key => $exp) {
$csv .= iconv("UTF-8", "gbk", $this->escapeCSV($expArr[$e_key])) . ',';
}
$csv .= "\n";
}
ob_end_clean();
$fileName .= '.csv';
header("Content-type:text/csv");
header("Content-Disposition:attachment;filename=" . iconv("UTF-8", "gb2312", $fileName));
header('Cache-Control:must-revalidate,post-check=0,pre-check=0');
header('Expires:0');
header('Pragma:public');
ob_end_clean();
echo $csv;
}
public function escapeCSV($str)
{
$str = str_replace(array(',', '"', "\n\r"), array('', '""', ''), $str);
if ($str == "") {
$str = '""';
}
return $str;
}
public function allData($rows)
{
foreach ($rows as $row) {
echo '<tr><td>' . implode('</td><td>', $row) . "</td></tr>\r\n";
}
flush();
}
public function oneData($row)
{
echo '<tr><td>' . implode('</td><td>', $row) . "</td></tr>\r\n";
flush();
}
public function end()
{
echo '</table>';
flush();
}
/**
* 多条数据flush一次 默认1000，有初始化对象决定
*/
public function multiData($row)
{
$this->rowCount++;
echo '<tr><td>' . implode('</td><td>', $row) . "</td></tr>\r\n";
if ($this->rowCount >= $this->rowFlushCount) {
flush();
}
}
}
function actionHowToExportBigData()
{
$xlsTools = new xlsTools();
$xlsTools->start([
'title' => ['列名1', '列名2'],//列名
'type' => 'xls', //导出的excel的类型
'name' => '测试1000W导出' //导出的excel的文件名
]
);
/* 导出1000万条示例 */
for ($i = 0; $i < 10000000; $i++) {
$row = ['列值1' => 1, '列值2' => 'x'];
$xlsTools->multiData($row);
}
$xlsTools->end();
}
actionHowToExportBigData();
