How to use variables outside the loop in FPDF - php

Question

I am generating a PDf doc using FPDF, when I click send button on a row in a table, I wanted to Generate a PDF for that Record and send it to the record email.
The PDF gets Generated normally, but I want to use a Variable "email" of each record to send to that record .. but On $to, I couldn't use email variable from my database.
I tried all combination of things and I am missing something for sure. The $idx is an Id from previous page (Index.php) posting data to "mail.php) where my PDF gets generated.
<!-- Index.php -->
<a class = "btn btn-info pid"
href = "mailto.php?idx=<?php echo $f_staff['id']?>" data-toggle="tooltip" title="Email This">
<span class="glyphicon glyphicon-envelope"></span>
</a>
<!-- mailto.php -->
<?php
require('../fpdf/fpdf.php');
$db = new PDO('mysql:host=localhost;dbname=mcle','root','PASS');
// CREATE AND SAVE THE PDF DOCUMENT
class pdf extends FPDF
{
function header()
{
Bla Bla Bla Bla.!
}
function viewTable($db)
{
$this->SetFont('Times','',12);
$idx = $_GET['idx'];
$stmt = $db->query("SELECT
staff.id,
staff.fname,
staff.lname,
staff.staff_bar_no,
staff.email
FROM staff JOIN attendance ON staff.staff_bar_no = attendance.staff_bar_no
WHERE attendance.event_id = 13 AND staff.id = '$idx'");
while($data = $stmt->fetch(PDO::FETCH_OBJ))
{
(This part WORKS fine with $data->Somevariables...
$this->Cell(80,6,$data->fname." ".$data->lname ,0,0,'L');
Bla Bla Bla Bla.!
}
}
}
$pdf = new pdf();
$pdf->AddPage('P','A4',0);
$pdf->view_pre_Table($db);
$pdf->viewTable($db);
// email stuff (change data below)
This is where I wanted to use Email Variable from the Array above... Tried $data->email; didn't work
$to = "email#email.net";
Bla Bla Bla Bla.!
// send message
mail($to, $subject, $body, $headers);
?>
Variables outside the while loop are consifered unidentified!

Answer 1

I’m not save in php, something like this could work:
<!-- mailto.php -->
<?php
require('../fpdf/fpdf.php');
$db = new PDO('mysql:host=localhost;dbname=mcle','root','PASS');
// CREATE AND SAVE THE PDF DOCUMENT
class pdf extends FPDF
{
//declare empty array
public $datas = [];
function header()
{
Bla Bla Bla Bla.!
}
function viewTable($db)
{
$this->SetFont('Times','',12);
$idx = $_GET['idx'];
$stmt = $db->query("SELECT
staff.id,
staff.fname,
staff.lname,
staff.staff_bar_no,
staff.email
FROM staff JOIN attendance ON staff.staff_bar_no = attendance.staff_bar_no
WHERE attendance.event_id = 13 AND staff.id = '$idx'");
while($data = $stmt->fetch(PDO::FETCH_OBJ))
{
array_push(this->datas,$data); //push each data into array
(This part WORKS fine with $data->Somevariables...
$this->Cell(80,6,$data->fname." ".$data->lname ,0,0,'L');
Bla Bla Bla Bla.!
}
}
}
$pdf = new pdf();
$pdf->AddPage('P','A4',0);
$pdf->view_pre_Table($db);
$pdf->viewTable($db);
// email stuff (change data below)
// now you can iterate over $pdf->datas
// send message
mail($to, $subject, $body, $headers);
?>

Answer 2

Here is my code:
$pdf = new pdf();
$pdf->AddPage('P','A4',0);
$pdf->view_pre_Table($db);
$pdf->viewTable($db);
//$pdf->Output(); //This is if you want an Output to the screen Rather than emailing..
$emailto = $_GET['idx'];// changed this it was base in id, changed to email instead and
assigned it to $emailto, then used it to get mail recipients.
// email stuff (change data below)
$to = $emailto;
$from = "LSNC MCLE";
$subject = "Your LSNC MCLE Attendance Certificate";
$message = "<p>Please see the attachment.</p>";

Answer 3

I did manage to make it work:
$pdf = new pdf();
$pdf->AddPage('P','A4',0);
$pdf->view_pre_Table($db);
$pdf->viewTable($db);
//$pdf->Output();
$emailto = $_GET['idx']; // email stuff (change data below)
$to = $emailto;
$from = "LSNC MCLE";
$subject = "Your LSNC MCLE Attendance Certificate";
$message = "<p>Please see the attachment.</p>";