通过PHP导出到CSV

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所属分类:PHP

在处理数据时候经常要生成csv文件, 下面代码片断就是简单的生成文件下载文件:

<?php

function arrayToCsv(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();
}

function downloadSendHeaders($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");
}

Usage example:

$array = [
    ['aaa', 'bbb', 'ccc', 'dddd'],
    ['123', '456', '789'],
    ['"aaa"', '"bbb"']
];
downloadSendHeaders("data_export_" . date("Y-m-d") . ".csv");
echo arrayToCsv($array);

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