Question

I am trying to figure out how to put a mysql query result into an array that can be accessed outside the while loop. Is this possible?

My test code that I am playing with is below. I want to send email to the email addresses in the array without creating the email code inside the while loop. That way I can inject the array result into the BCC field and it all goes out at once using the mail() function rather than opening a new smtp connection for each email – or so I think.

<?php  
if(isset($_POST['btnSendToSelected']) && isset($_POST['checked']))
{
    $checked = array_map('intval',$_POST['checked']);
    $email_list = implode(", ", $checked);

    $get_emails = mysqli_query($conn, "SELECT UserName, Email FROM users WHERE UserId IN ($email_list)")
    or die($dataaccess_error);

    while($row = mysqli_fetch_array($get_emails))
    {
        $emails = array($row['Email']);
        $emails_array = implode(", ", $emails);
    }
        // send the email here outside the while loop...
}
elseif(isset($_POST['btnSendToSelected']) && !isset($_POST['checked']))
{
    $msg = $msg_error;
}
?>

Answer 1

$emails_array = array();

while($row = mysqli_fetch_array($get_emails)) {
    $emails_array[] = explode(", ", $row['Email']);
}

foreach($emails_array as $value) {
  mail_function($value);
}

Or

while($row = mysqli_fetch_array($get_emails)) {
  foreach(explode(", ", $row['Email']) as $value) {
    mail_function($value);
  }
}