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Asked: 2026-05-31T04:22:59+00:00

I’ve read & tried a few posts but can’t get this problem solved. I’m

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I’ve read & tried a few posts but can’t get this problem solved. I’m trying to send mail to addresses in a database, but get the following error: Warning: mail() expects parameter 3 to be string, array given … 

include 'datalogin.php';
$sql10 = "SELECT * FROM ex_usrs_admin_dept WHERE linked_dept = '$newdept1'";
$res10 = mysql_query($sql10);
while ($row10 = mysql_fetch_assoc($res10)) {
    $adminid1 = $row10['adminid'];

    $elist = mysql_query("SELECT mail_address FROM ex_usrs WHERE id = '$adminid1'");
    $subject = "This is the subject";
    $headers = "MIME-Version: 1.0" . "\r\n";
    $headers .= "Content-type:text/html;charset=iso-8859-1" . "\r\n";

    $message = '<h3>This is the message</h3>';

    ini_set(SMTP, "10.xxx.xxx.xx");
    ini_set(smtp_port, 25);
    ini_set('display_errors', '1');
    ini_set("sendmail_from", "xx@xx.com");

    if (mysql_num_rows($elist) > 0) {
        while ($elist_result = mysql_fetch_array($elist)) {
            $headers = array('To' => $elist_result['mail_address']);
            mail($subject, $message, $headers);
        }
    }
}
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1 Answer

  1. Editorial Team

    You have mixed up the parameters of the mail function … your should be sending the following :

    mail ( string $to , string $subject , string $message [, string $additional_headers [, string $additional_parameters ]] )

    Note the $to field at the start. Change your while loop from 

    $headers = array('To' => $elist_result['mail_address']);
mail($subject, $message, $headers);

    to 

    mail($elist_result['mail_address'],$subject, $message, $headers);

    The PHP documentation is very detailed

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