-
凤凰求蛊
我个人使用这个函数从任何数组创建CSV内容。function array2csv(array &$array){
if (count($array) == 0) {
return null;
}
ob_start();
$df = fopen("php://output", 'w');
fputcsv($df, array_keys(reset($array)));
foreach ($array as $row) {
fputcsv($df, $row);
}
fclose($df);
return ob_get_clean();}然后，您可以让用户下载该文件，如下所示：function download_send_headers($filename) {
// disable caching
$now = gmdate("D, d M Y H:i:s");
header("Expires: Tue, 03 Jul 2001 06:00:00 GMT");
header("Cache-Control: max-age=0, no-cache, must-revalidate, proxy-revalidate");
header("Last-Modified: {$now} GMT");
// force download
header("Content-Type: application/force-download");
header("Content-Type: application/octet-stream");
header("Content-Type: application/download");
// disposition / encoding on response body
header("Content-Disposition: attachment;filename={$filename}");
header("Content-Transfer-Encoding: binary");}用法示例：download_send_headers("data_export_" . date("Y-m-d") . ".csv");echo array2csv($array);die();
-
当年话下
可以使用此命令导出日期。<?php
$list = array (
array('aaa', 'bbb', 'ccc', 'dddd'),
array('123', '456', '789'),
array('"aaa"', '"bbb"'));$fp = fopen('file.csv', 'w');foreach ($list as $fields) {
fputcsv($fp, $fields);}fclose($fp);?>首先，必须将数据从MySQL服务器加载到数组中。
-
缥缈止盈
为了记录在案，连接比连接速度快(我是认真的)。fputcsv甚至implode文件大小更小：// The data from Eternal Oblivion is an object, always$values = (array) fetchDataFromEternalOblivion($userId, $limit = 1000);
// ----- fputcsv (slow)// The code of @Alain Tiemblo is the best implementationob_start();$csv = fopen("php://output", 'w');
fputcsv($csv, array_keys(reset($values)));foreach ($values as $row) {
fputcsv($csv, $row);}fclose($csv);return ob_get_clean();// ----- implode (slow, but file size is smaller)
$csv = implode(",", array_keys(reset($values))) . PHP_EOL;foreach ($values as $row) {
$csv .= '"' . implode('","', $row) . '"' . PHP_EOL;}return $csv;// ----- concatenation (fast, file size is smaller)
// We can use one implode for the headers =D$csv = implode(",", array_keys(reset($values))) . PHP_EOL;$i = 1;
// This is less flexible, but we have more control over the formattingforeach ($values as $row) {
$csv .= '"' . $row['id'] . '",';
$csv .= '"' . $row['name'] . '",';
$csv .= '"' . date('d-m-Y', strtotime($row['date'])) . '",';
$csv .= '"' . ($row['pet_name'] ?: '-' ) . '",';
$csv .= PHP_EOL;}return $csv;这是从10行到数千行的几个报告优化的结论。这三个示例在1000行下工作良好，但当数据更大时就失败了。