php - How to stop re-sending Email when the page refresh

Question

This question already has answers here: question from:https://stackoverflow.com/questions/65854572/how-to-stop-re-sending-email-when-the-page-refresh

Answer 1

like i said in the comments, store a key in session when you send a email, and then put a verification in this key before try to send any email

<?php

session_start(); //start a new sesion if you does not have one already

function sendEmail($mail,$empemail,$empname,$adminemail,$superevmail,$subject,$bodycontent,$bodycontent2){
    //check if the session variable
    if(isset($_SESSION['notified']) && !empty($_SESSION['notified']) && $_SESSION['notified'] == false) {
        $mail->Encoding = 'base64';

        $mail->isSMTP();                      // Set mailer to use SMTP
        $mail->Host = 'smtp.gmail.com';       // Specify main and backup SMTP servers
        $mail->SMTPAuth = true;               // Enable SMTP authentication
        $mail->Username = '[email protected]';   // SMTP username
        $mail->Password = '111';   // SMTP password
        $mail->SMTPSecure = 'tls';            // Enable TLS encryption, `ssl` also accepted
        $mail->Port = 587;                    // TCP port to connect to

        // Sender info
        $mail->setFrom($empemail, $empname);
        // $mail->addReplyTo('[email protected]', 'name');

        // Add a recipient
        $mail->addAddress($adminemail);//ad

        $mail->addCC($superevmail);
        //$mail->addBCC('[email protected]');

        // Set email format to HTML
        $mail->isHTML(true);

        // Mail subject
        $mail->Subject = $subject;

        // Mail body content
        $bodyContent = $bodycontent;
        $bodyContent .=$bodycontent2;
        $mail->Body    = $bodyContent;

        // Send email
        if(!$mail->send()) {
            echo 'Message could not be sent. Mailer Error: '.$mail->ErrorInfo;
        } else {
            //change the session variable
            $_SESSION['notified'] = true;
            echo 'Message has been sent.';
        }
    }
}

?>

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