$filename = iconv(“UTF-8”, “GB2312//IGNORE”, ‘志愿者列表’) . ‘-‘ . date(‘YmdHis’) . ‘.xlsx’;
header(‘Content-Type: application/vnd.ms-excel’);
header(‘Content-Disposition: attachment;filename=”‘.$filename.'”‘);
header(‘Cache-Control: max-age=0’);
header( ‘Pragma: public’ );
header( ‘Expires: 0’ );
header( ‘Content-Encoding: none’ );
header( ‘Cache-Control: must-revalidate, post-check=0, pre-check=0’ );
header( ‘Cache-Control: public’ );
header( ‘Content-Des服务器托管网cription: File Transfer’ );
header( ‘Conten服务器托管网t-Transfer-Encoding: binary’ );
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[图片来源:unsplash.com[1]] 设想一下,你有30个Node服务器与 “Nginx “服务器平衡。服务器的负载被平均分配,所以如果你有9000个用户,每个服务器有300个客户。把负载平均分配给每台服务器并不意味着你可以避免过载,因为你的工作对每个…