PHPMailer, attachment settings can't access file (csv fiile) - php

Question

I'm running a PHP script that runs a sequence of SQL queries, writes the results to CSV, and saves it. It also mails the report to a recipient.
The CSV portion of the code works perfectly, and the PHPMailer portion sends the test email with no problem. However, when I un-comment the attachment portion of PHPMailer and run the script it says "File could not be accessed". When I replace the comment, it writes the file and sends the test email again just fine.
The line in question, which I comment/uncomment accordingly, is: $mail->addAttachment($fp);
So, the two pieces are working, but this being my first time using PHPMailer, I'm not sure the best way to go about fixing this. As far as I can tell, I'm using the addAttachment code properly and I'm closing the CSV at the very end.
Any help is much appreciated.
The script:
if (!$result) die('Couldn\'t fetch records');
$num_fields = mysqli_num_fields($result);
$headers = array();
while ($fieldinfo = mysqli_fetch_field($result)) {
$headers[] = $fieldinfo->name;
}
$fp = fopen('dailyReportTestPHP.csv', 'w');
if ($fp && $result) {
fputcsv($fp, $headers);
while ($row = $result->fetch_array(MYSQLI_NUM)) {
fputcsv($fp, array_values($row));
}
}
$mail = new PHPMailer(true);
$address = "hnorman#jacksonfurnind.com";
try{
$mail->setFrom("hnorman#jacksonfurnind.com");
$mail->addAddress($address);
$mail->addAttachment($fp);
$mail->isHTML(true);
$mail->Subject = "Test";
$mail->Body = "Test";
$mail->Send();
echo 'message sent';
} catch (Exception $e){
echo 'message failed';
echo 'mail error:' . $mail->ErrorInfo;
}
fclose($fp);

Answer 1

It's because $fp is an open file handle; PHPMailer is expecting a string containing the path to the file to be passed to addAttachment(). So, move the fclose call to before you create the PHPMailer instance, and then do this:
$mail->addAttachment('dailyReportTestPHP.csv');