本文主要是介绍PHP解决Safari浏览器下载文件文件名称乱码的问题,希望对大家解决编程问题提供一定的参考价值,需要的开发者们随着小编来一起学习吧!
【项目背景】
项目中开发了统一的文件管理器,在其余如IE,Chrome,Firefox等下载正常,可是在苹果Safari浏览器下载就会出现中文名称乱码问题。
【理论知识】
主要是下载Header头不符合RFC规范致使。参考文章:http://www.sohu.com/a/334506221_463987。
【如何解决】
设置统一的下载Header头以下:
<?php
/*** 获取下载文件所需headers头信息** @param string $filename* @param string $charset 默认UTF-8* @param string $mimeType 默认application/octet-stream* @return array*/
function downloadHeaders($filename, $charset = 'UTF-8', $mimeType = 'application/octet-stream')
{// 兼容各浏览器下载文件名乱码问题if (preg_match("/MSIE/", $_SERVER["HTTP_USER_AGENT"])) {$filename = urlencode($filename);// 替换空格$filename = str_replace("+", "%20", $filename);$attachment = "attachment; filename=\"{$filename}\"; charset={$charset}";} else if (preg_match("/Firefox/", $_SERVER["HTTP_USER_AGENT"])) {$attachment = 'attachment; filename*=utf-8\'\'' . $filename;} else if (preg_match("/(Safari|MicroMessenger)/", $_SERVER["HTTP_USER_AGENT"])) {$filename = rawurlencode($filename);// 注意:rawurlencode与urlencode的区别$attachment = 'attachment; filename*=utf-8\'\'' . $filename;} else {$attachment = "attachment; filename=\"{$filename}\"; charset={$charset}";}$headers = ['Cache-Control' => 'public, must-revalidate, max-age=0','Content-Type' => $mimeType,'Content-Disposition' => $attachment,];return $headers;
}/*** 判断文件是否存在,包含远程文件** @param string $file* @return bool*/
function m_file_exists($file)
{if (preg_match('/^http(s)?:\/\//', $file)) {//远程文件if (ini_get('allow_url_fopen')) {if (@fopen($file, 'r')) {return true;}} else {$parseurl = parse_url($file);$host = $parseurl['host'];$path = $parseurl['path'];$fp = fsockopen($host, 80, $errno, $errstr, 5);if (!$fp) {return false;}fputs($fp, "GET {$path} HTTP/1.1 \r\nhost:{$host}\r\n\r\n");if (preg_match('/HTTP\/1.1 200/', fgets($fp, 1024))) {return true;}}return false;}return file_exists($file);
}header('Content-Type: text/html; charset=utf-8');if ($_GET["type"] == 2) {// https://abc.cde.com/filedownload.php?type=2&fileurl=https%3A%2F%2Fabc.cde.com%2Fpwpublic%2F%E4%BA%BA%E5%91%98%E5%90%8D%E5%8D%95%E6%A8%A1%E6%9D%BF.xlsx&filename=%E4%BA%BA%E5%91%98%E5%90%8D%E5%8D%95%E6%A8%A1%E6%9D%BFtest.xlsx// http://localhost/filedownload.php?type=2&fileurl=https%3A%2F%2Fabc.cde.com%2Fpwpublic%2F%E4%BA%BA%E5%91%98%E5%90%8D%E5%8D%95%E6%A8%A1%E6%9D%BF.xlsx&filename=%E4%BA%BA%E5%91%98%E5%90%8D%E5%8D%95%E6%A8%A1%E6%9D%BFtest.xlsx// https://abc.cde.com/filedownload.php?type=2&fileurl=urlencode{文件下载地址}&filename=urlencode{文件名}// $file_name ='人员名单模板.xlsx';// $file_path = 'https://abc.cde.com/pwpublic/人员名单模板.xlsx';$file_name = urldecode($_GET["filename"]);$file_path = urldecode($_GET["fileurl"]);
} else {$file_name = '团体人员名单模板.xlsx';$file_path = '/home/www/xxx/public/团体人员名单模板.xlsx';
}
if (m_file_exists($file_path) == false) {echo '文件不存在';exit;
}$headers = downloadHeaders($file_name);
foreach ($headers as $k => $v) {header($k . ':' . $v);
}
readfile($file_path);
?>
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