添加文件附件php邮件表单

Question

找人帮我做这件事。

我的网站上有一个邮件脚本，用于发送电子邮件，发送邮件工作正常，但我希望能够发送带附件的电子邮件，但这样做时遇到了问题。

这是表单的 php

<?php

// Set email variables
$email_to = 'youremail@address.com';
$email_subject = 'Form submission';

// Set required fields
$required_fields = array('fullname','email','comment');

// set error messages
$error_messages = array(
'fullname' => 'Please enter a Name to proceed.',
'email' => 'Please enter a valid Email Address to continue.',
'comment' => 'Please enter your Message to continue.'
);

// Set form status
$form_complete = FALSE;

// configure validation array
 $validation = array();

// check form submittal
 if(!empty($_POST)) {
// Sanitise POST array
foreach($_POST as $key => $value) $_POST[$key] = remove_email_injection(trim($value));

// Loop into required fields and make sure they match our needs
foreach($required_fields as $field) {       
    // the field has been submitted?
    if(!array_key_exists($field, $_POST)) array_push($validation, $field);

    // check there is information in the field?
    if($_POST[$field] == '') array_push($validation, $field);

    // validate the email address supplied
    if($field == 'email') if(!validate_email_address($_POST[$field]))array_push $validation, $field);
}

// basic validation result
if(count($validation) == 0) {
    // Prepare our content string
    $email_content = 'New Website Comment: ' . "\n\n";

    // simple email content
    foreach($_POST as $key => $value) {
        if($key != 'submit') $email_content .= $key . ': ' . $value . "\n";
    }

    // if validation passed ok then send the email
    mail($email_to, $email_subject, $email_content);

    // Update form switch
    $form_complete = TRUE;
}
}

function validate_email_address($email = FALSE) {
return (preg_match('/^[^@\s]+@([-a-z0-9]+\.)+[a-z]{2,}$/i', $email))? TRUE : FALSE;
}

function remove_email_injection($field = FALSE) {
   return (str_ireplace(array("\r", "\n", "%0a", "%0d", "Content-       Type:", "bcc:","to:","cc:"), '', $field));
}

?>

Answer 1

查看这个答案：Send attachments with PHP Mail()?

我建议使用Swift mailer。我在使用它方面取得了非常好的成功。它不仅对附件有帮助，而且还允许您发送 HTML 电子邮件，而无需邮件程序将其发送到垃圾邮件。

以下是 PHP 中普通邮件函数的一些代码：在发送带有附件的邮件下找到 here。

<?php 
//define the receiver of the email 
$to = 'youraddress@example.com'; 
//define the subject of the email 
$subject = 'Test email with attachment'; 
//create a boundary string. It must be unique 
//so we use the MD5 algorithm to generate a random hash 
$random_hash = md5(date('r', time())); 
//define the headers we want passed. Note that they are separated with \r\n 
$headers = "From: webmaster@example.com\r\nReply-To: webmaster@example.com"; 
//add boundary string and mime type specification 
$headers .= "\r\nContent-Type: multipart/mixed; boundary=\"PHP-mixed-".$random_hash."\""; 
//read the atachment file contents into a string,
//encode it with MIME base64,
//and split it into smaller chunks
$attachment = chunk_split(base64_encode(file_get_contents('attachment.zip'))); 
//define the body of the message. 
ob_start(); //Turn on output buffering 
?> 
--PHP-mixed-<?php echo $random_hash; ?>  
Content-Type: multipart/alternative; boundary="PHP-alt-<?php echo $random_hash; ?>" 

--PHP-alt-<?php echo $random_hash; ?>  
Content-Type: text/plain; charset="iso-8859-1" 
Content-Transfer-Encoding: 7bit

Hello World!!! 
This is simple text email message. 

--PHP-alt-<?php echo $random_hash; ?>  
Content-Type: text/html; charset="iso-8859-1" 
Content-Transfer-Encoding: 7bit

<h2>Hello World!</h2> 
<p>This is something with <b>HTML</b> formatting.</p> 

--PHP-alt-<?php echo $random_hash; ?>-- 

--PHP-mixed-<?php echo $random_hash; ?>  
Content-Type: application/zip; name="attachment.zip"  
Content-Transfer-Encoding: base64  
Content-Disposition: attachment  

<?php echo $attachment; ?> 
--PHP-mixed-<?php echo $random_hash; ?>-- 

<?php 
//copy current buffer contents into $message variable and delete current output buffer 
$message = ob_get_clean(); 
//send the email 
$mail_sent = @mail( $to, $subject, $message, $headers ); 
//if the message is sent successfully print "Mail sent". Otherwise print "Mail failed" 
echo $mail_sent ? "Mail sent" : "Mail failed"; 
?>

Answer 2

假设你的表单有这个输入字段

<label for="Attachment">Attachment:</label>
<input type="file" name="attach1" id="attach1" />

下面的函数将完成发送附件的工作，它需要参数$recipientEmail,$senderEmail, $subject,$message，只要您在提交表单时有上述输入字段，附件由$_FILE处理.

public function sendEmailWithAttachments($recipientEmail,$senderEmail, $subject,$message){
    if(isset($_FILES) && (bool) $_FILES) {

        $allowedExtensions = array("pdf","doc","docx","gif","jpeg","jpg","JPG","png","PNG","rtf","txt","xml");

        $files = array();
        foreach($_FILES as $name=>$file) {
            //die("file size: ".$file['size']);
            if($file['size']>=5242880)//5mb
            {
                $fileSize=$file['size'];
                return false;
            }
            $file_name = $file['name']; 
            $temp_name = $file['tmp_name'];
            $file_type = $file['type'];
            $path_parts = pathinfo($file_name);
            $ext = $path_parts['extension'];
            if(!in_array($ext,$allowedExtensions)) {
                return false;
                //die("File $file_name has the extensions $ext which is not allowed");
            }

            //move the file to the server, cannot be skipped
            $server_file="/tmp/$path_parts[basename]";
            move_uploaded_file($temp_name,$server_file);
            array_push($files,$server_file);
            //array_push($files,$temp_name);
        }

        // email fields
        $headers = "From: $senderEmail";


        // 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 
        $message = "This is a multi-part message in MIME format.\n\n" . "--{$mime_boundary}\n" . "Content-Type: text/plain; charset=\"iso-8859-1\"\n" . "Content-Transfer-Encoding: 7bit\n\n" . $message . "\n\n"; 
        $message .= "--{$mime_boundary}\n";

        // preparing attachments
        for($x=0;$x<count($files);$x++){
            $file = fopen($files[$x],"rb");
            $data = fread($file,filesize($files[$x]));
            fclose($file);
            $data = chunk_split(base64_encode($data));
            $message .= "Content-Type: {\"application/octet-stream\"};\n" . " name=\"$files[$x]\"\n" . 
            "Content-Disposition: attachment;\n" . " filename=\"$files[$x]\"\n" . 
            "Content-Transfer-Encoding: base64\n\n" . $data . "\n\n";
            $message .= "--{$mime_boundary}\n";
        }

        // send
        return @mail($recipientEmail, $subject, $message, $headers);

    }