How to Test mail and send attachment in mail


Simple Test php mail() on your Web Server is working
1. Create a php test file using a text editor and save it e.g. as test.php:

$sender = 'someone@somedomain.tld';
$recipient = 'you@yourdomain.tld';

$subject = "php mail test";
$message = "php test message";
$headers = 'From:' . $sender;

if (mail($recipient, $subject, $message, $headers))
    echo "Message accepted";
    echo "Error: Message not accepted";

2. Change the $sender and $recipient in the code.

3. Upload the php file to your webserver.

4. Open the uploaded php file in your browser to execute the php script.

5. The output show either “Message accepted” or “Error: Message not accepted”.

Simple Test php mail working then start Send Email with Attachment on Form Submission using PHP


Web Form HTML with File Upload Field

The following HTML builds a contact form with some basic fields (Name, Email, Subject, and Message) and a file input field. The file input field allows the user to select a file to send as an attachment with the form data.

<!-- Display submission status -->
<?php if(!empty($statusMsg)){ ?>
    <p class="statusMsg <?php echo !empty($msgClass)?$msgClass:''; ?>"><?php echo $statusMsg; ?></p>
<?php } ?>

<!-- Display contact form -->
<form method="post" action="" enctype="multipart/form-data">
    <div class="form-group">
        <input type="text" name="name" class="form-control" value="<?php echo !empty($postData['name'])?$postData['name']:''; ?>" placeholder="Name" required="">
    <div class="form-group">
        <input type="email" name="email" class="form-control" value="<?php echo !empty($postData['email'])?$postData['email']:''; ?>" placeholder="Email address" required="">
    <div class="form-group">
        <input type="text" name="subject" class="form-control" value="<?php echo !empty($postData['subject'])?$postData['subject']:''; ?>" placeholder="Subject" required="">
    <div class="form-group">
        <textarea name="message" class="form-control" placeholder="Write your message here" required=""><?php echo !empty($postData['message'])?$postData['message']:''; ?></textarea>
    <div class="form-group">
        <input type="file" name="attachment" class="form-control">
    <div class="submit">
        <input type="submit" name="submit" class="btn" value="SUBMIT">

Send Email with attachment on Form Submission

The following code handles the form submission and email sending functionality using PHP.

    • Get the submitted form data using the $_POST method in PHP.
    • Validate input data to check whether the mandatory fields are not empty.
    • Validate email address using PHP FILTER_VALIDATE_EMAIL filter.
  • Check and validate the file extension to allow certain file formats (PDF, Image, and MS Word file).
  • Upload file to the server using PHP move_uploaded_file() function.
  • Add form data and uploaded file to the email content.
  • Send an email to the specified recipient with attachment using the PHP mail() function.
$postData = $uploadedFile = $statusMsg = '';
$msgClass = 'errordiv';
    // Get the submitted form data
    $postData = $_POST;
    $email = $_POST['email'];
    $name = $_POST['name'];
    $subject = $_POST['subject'];
    $message = $_POST['message'];
    // Check whether submitted data is not empty
    if(!empty($email) && !empty($name) && !empty($subject) && !empty($message)){
        // Validate email
        if(filter_var($email, FILTER_VALIDATE_EMAIL) === false){
            $statusMsg = 'Please enter your valid email.';
            $uploadStatus = 1;
            // Upload attachment file
                // File path config
                $targetDir = "uploads/";
                $fileName = basename($_FILES["attachment"]["name"]);
                $targetFilePath = $targetDir . $fileName;
                $fileType = pathinfo($targetFilePath,PATHINFO_EXTENSION);
                // Allow certain file formats
                $allowTypes = array('pdf', 'doc', 'docx', 'jpg', 'png', 'jpeg');
                if(in_array($fileType, $allowTypes)){
                    // Upload file to the server
                    if(move_uploaded_file($_FILES["attachment"]["tmp_name"], $targetFilePath)){
                        $uploadedFile = $targetFilePath;
                        $uploadStatus = 0;
                        $statusMsg = "Sorry, there was an error uploading your file.";
                    $uploadStatus = 0;
                    $statusMsg = 'Sorry, only PDF, DOC, JPG, JPEG, & PNG files are allowed to upload.';
            if($uploadStatus == 1){
                // Recipient
                $toEmail = '';

                // Sender
                $from = '';
                $fromName = 'CodexWorld';
                // Subject
                $emailSubject = 'Contact Request Submitted by '.$name;
                // Message 
                $htmlContent = '<h2>Contact Request Submitted</h2>
                    <p><b>Name:</b> '.$name.'</p>
                    <p><b>Email:</b> '.$email.'</p>
                    <p><b>Subject:</b> '.$subject.'</p>
                // Header for sender info
                $headers = "From: $fromName"." <".$from.">";

                if(!empty($uploadedFile) && file_exists($uploadedFile)){
                    // Boundary 
                    $semi_rand = md5(time()); 
                    $mime_boundary = "==Multipart_Boundary_x{$semi_rand}x"; 
                    // Headers for attachment 
                    $headers .= "\nMIME-Version: 1.0\n" . "Content-Type: multipart/mixed;\n" . " boundary=\"{$mime_boundary}\""; 
                    // Multipart boundary 
                    $message = "--{$mime_boundary}\n" . "Content-Type: text/html; charset=\"UTF-8\"\n" .
                    "Content-Transfer-Encoding: 7bit\n\n" . $htmlContent . "\n\n"; 
                    // Preparing attachment
                        $message .= "--{$mime_boundary}\n";
                        $fp =    @fopen($uploadedFile,"rb");
                        $data =  @fread($fp,filesize($uploadedFile));
                        $data = chunk_split(base64_encode($data));
                        $message .= "Content-Type: application/octet-stream; name=\"".basename($uploadedFile)."\"\n" . 
                        "Content-Description: ".basename($uploadedFile)."\n" .
                        "Content-Disposition: attachment;\n" . " filename=\"".basename($uploadedFile)."\"; size=".filesize($uploadedFile).";\n" . 
                        "Content-Transfer-Encoding: base64\n\n" . $data . "\n\n";
                    $message .= "--{$mime_boundary}--";
                    $returnpath = "-f" . $email;
                    // Send email
                    $mail = mail($toEmail, $emailSubject, $message, $headers, $returnpath);
                    // Delete attachment file from the server
                     // Set content-type header for sending HTML email
                    $headers .= "\r\n". "MIME-Version: 1.0";
                    $headers .= "\r\n". "Content-type:text/html;charset=UTF-8";
                    // Send email
                    $mail = mail($toEmail, $emailSubject, $htmlContent, $headers); 
                // If mail sent
                    $statusMsg = 'Your contact request has been submitted successfully !';
                    $msgClass = 'succdiv';
                    $postData = '';
                    $statusMsg = 'Your contact request submission failed, please try again.';
        $statusMsg = 'Please fill all the fields.';


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