A simple script to email the results of a query as a CSV.

csv-email.php

<?php
$query = 'SELECT id, column1, column2, column3 FROM ImportantTable WHERE something LIKE "SomethingElse%";';

exec("mysql -h 123.456.789.012 -u SomeImportantUser -p'P4ssw0rd!' BigImportantDatabase -e '$query' | sed 's/\t/,/g' > ".__DIR__."/output.csv");

$mail = new stdClass;
$mail->to = "[email protected]";
$mail->subject = "CSV Output for that query you asked for";
$mail->hash = md5(uniqid());
$mail->headers = array(
    "From: [email protected]",
    "Reply-To: [email protected]", // So that a human will read the reply!
    "Content-Type: multipart/mixed; boundary=\"PHP-mixed-".$mail->hash."\""
);
$mail->attachment = chunk_split(base64_encode(file_get_contents(__DIR__."/output.csv")));
ob_start();
?>
--PHP-mixed-<?php echo $mail->hash;?>
Content-Type: multipart/alternative; boundary="PHP-alt-<?php echo $mail->hash;?>"

Hello there!

Here is the weekly output for that query.

With love,
A robot

--PHP-mixed-<?php echo $mail->hash;?>
Content-Type: text/csv; name="importantfilename.csv"
Content-Transfer-Encoding: base64
Content-Disposition: attachment

<?php echo $mail->attachment; ?>
--PHP-mixed-<?php echo $mail->hash;?>--
<?php
$mail->message = ob_get_clean();
$mail->sent = @mail($mail->to, $mail->subject, $mail->message, implode("\r\n", $mail->headers));

echo ($mail->sent ? "Mail sent." : "Mail failed"), PHP_EOL;

unlink(__DIR__."/output.csv");