我正在尝试创建一个 cron 作业每晚运行的 php 脚本。
该数据库包含来自联系表格的条目。
这个想法是运行 php 脚本（通过 cron）并让它从当天的数据库中导出任何新条目到服务器上的 csv 文件中，每次都覆盖该文件以进行内务处理。它只需要从那天开始将条目导出到数据库。
这是我目前所拥有的：
<?php
// Connect and query the database for the users
$conn = new PDO("mysql:host=localhost;dbname=dbname", 'username', 'password');
$sql = "SELECT * FROM enquiries ORDER BY firstname";
$results = $conn->query($sql);
// Pick a filename and destination directory for the file
// Remember that the folder where you want to write the file has to be writable
//$filename = "/tmp/db_user_export_".time().".csv";
$filename = "/home/domain/public_html/csv/db_user_export.csv";
// Actually create the file
// The w+ parameter will wipe out and overwrite any existing file with the same name
$handle = fopen($filename, 'wb');
// Write the spreadsheet column titles / labels
fputcsv($handle, array('FirstName','Email'));
// Write all the user records to the spreadsheet
foreach($results as $row)
{
fputcsv($handle, array($row['firstname'], $row['email']));
}
// Finish writing the file
fclose($handle);
?>