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У меня есть форма с 3 текстовыми полями, где пользователи загружают как минимум 1 файл и их данные. Единственная проблема, я имею в том, что, когда файл не загружается на сервер, он по-прежнему отправляет электронное письмо без вложения. как я могу это прекратить, и моя оценка достаточно для фотографий и pdf? Спасибо, мой текущий код:Проверка формы PHP
$to="myemailaddress";
$subject = "Subject of email";
// get the sender's name and email address
// we'll just plug them a variable to be used later
$from = "<".stripslashes($_POST['customer_email']).">";
// generate a random string to be used as the boundary marker
$mime_boundary="==Multipart_Boundary_x".md5(mt_rand())."x";
// now we'll build the message headers
$headers = "From: $from\r\n" .
"MIME-Version: 1.0\r\n" .
"Content-Type: multipart/mixed;\r\n" .
" boundary=\"{$mime_boundary}\"";
// here, we'll start the message body.
// this is the text that will be displayed
// in the e-mail
$message = "$body\n";
$message .="This is an automated email";
$message .="Clients files attached:\n\n";
// next, we'll build the invisible portion of the message body
// note that we insert two dashes in front of the MIME boundary
// when we use it
$message = "This is a multi-part message in MIME format.\n\n" .
"--{$mime_boundary}\n" .
"Content-Type: text/plain; charset=\"utf-8\"\n" .
"Content-Transfer-Encoding: 7bit\n\n" .
$message . "\n\n";
// now we'll process our uploaded files
foreach($_FILES as $userfile){
// store the file information to variables for easier access
$tmp_name = $userfile['tmp_name'];
$type = $userfile['type'];
$name = $userfile['name'];
$size = $userfile['size'];
$allowedExtensions = array("pdf","jpg","jpeg", "png");
foreach ($_FILES as $userfile) {
if ($userfile['tmp_name'] > '') {
if (!in_array(end(explode(".",
strtolower($userfile['name']))),
$allowedExtensions)) {
echo "not an accepted file type";
exit();
}
}
}
// if the upload succeded, the file will exist
if (file_exists($tmp_name)){
// check to make sure that it is an uploaded file and not a system file
if(is_uploaded_file($tmp_name)){
// open the file for a binary read
$file = fopen($tmp_name,'rb');
// read the file content into a variable
$data = fread($file,filesize($tmp_name));
// close the file
fclose($file);
// now we encode it and split it into acceptable length lines
$data = chunk_split(base64_encode($data));
}
// now we'll insert a boundary to indicate we're starting the attachment
// we have to specify the content type, file name, and disposition as
// an attachment, then add the file content.
// NOTE: we don't set another boundary to indicate that the end of the
// file has been reached here. we only want one boundary between each file
// we'll add the final one after the loop finishes.
$message .= "--{$mime_boundary}\n" .
"Content-Type: {$type};\n" .
" name=\"{$name}\"\n" .
"Content-Disposition: attachment;\n" .
" filename=\"{$fileatt_name}\"\n" .
"Content-Transfer-Encoding: base64\n\n" .
$data . "\n\n";
}
}
// here's our closing mime boundary that indicates the last of the message
$message.="--{$mime_boundary}--\n";
// now we just send the message
mail($to, $subject, $message, $headers);
echo "mail sent";
}