我试图想出这个问题一段时间，但似乎无法得到它。我有一个工作代码，一个文件上传工作正常，现在尝试创建一个2上传。为了尝试添加多个文件，我添加了一个foreach循环，并将表单输入的name属性切换为name =“photo []”，以便它读取一个数组。表单提交没有错误，但我仍然只收到电子邮件附件中的第一个文件。我见过很多类似的问题，但仍然无法得到它 - 谢谢你的耐心等待！ （我也玩过：
for($i = 0; $i < 2; $i++) {
代替和foreach）但这是我现在的代码。
HTML表格：
<form enctype="multipart/form-data" method= "post" action="couple_uploader_test.php">
<input type="hidden" name="myEmail" value="info@website.co.uk">
<input type="hidden" name="subject" value="Couple Portrait Order">
<label>Name:</label><input type="text" name="customerName" required="true"/><br/>
<label>Email:</label><input type="email" name="customerEmail" required="true"/><br/>
<label>Photo:</label><input type="file" name="photo[]" accept="image/*" required="true"/>
<label>2nd Photo (optional):</label><input type="file" name="photo[]" accept="image/*"/>
<label>Notes:</label><textarea name="message" cols="30" rows="6">customer message here</textarea>
<input type="hidden" name="thankyou_url" value="http://www.website.co.uk/html/couple_uploaded.html"/>
<input type="submit" value="Submit Photo"/>
</form>
上传者PHP：
<?php
$to = $_POST['myEmail'];
$from = $_POST['customerEmail'];
$name = $_POST['customerName'];
$subject = $_POST['subject'];
$message = $_POST['message']."\n\n" . $name;
$message = wordwrap($message,70);
foreach ($_FILES['photo']['name'] as $key => $tmp_name) {
$allowedExts = array("gif", "jpeg", "jpg", "png");
$temp = explode(".", $_FILES["photo"]["name"][$key]);
$extension = end($temp);
if ((($_FILES["photo"]["type"][$key] == "image/gif")
|| ($_FILES["photo"]["type"][$key] == "image/jpeg")
|| ($_FILES["photo"]["type"][$key] == "image/jpg")
|| ($_FILES["photo"]["type"][$key] == "image/pjpeg")
|| ($_FILES["photo"]["type"][$key] == "image/x-png")
|| ($_FILES["photo"]["type"][$key] == "image/png"))
&& ($_FILES["photo"]["size"][$key] < 3000000)
&& in_array($extension, $allowedExts)) {
/* GET File Variables */
$tmpName = $_FILES['photo']['tmp_name'][$key];
$fileType = $_FILES['photo']['type'][$key];
$fileName = $_FILES['photo']['name'][$key];
/* Start of headers */
$headers = "From: $from";
if (file($tmpName)) {
/* Reading file ('rb' = read binary) */
$file = fopen($tmpName,'rb');
$data = fread($file,filesize($tmpName));
fclose($file);
/* a boundary string */
$randomVal = md5(time());
$mimeBoundary = "==Multipart_Boundary_x{$randomVal}x";
/* Header for File Attachment */
$headers .= "\nMIME-Version: 1.0\n";
$headers .= "Content-Type: multipart/mixed;\n" ;
$headers .= " boundary=\"{$mimeBoundary}\"";
/* Multipart Boundary above message */
$message = "This is a multi-part message in MIME format.\n\n" .
"--{$mimeBoundary}\n" .
"Content-Type: text/plain; charset=\"iso-8859-1\"\n" .
"Content-Transfer-Encoding: 7bit\n\n" .
$message . "\n\n";
/* Encoding file data */
$data = chunk_split(base64_encode($data));
/* Adding attchment-file to message*/
$message .= "--{$mimeBoundary}\n" .
"Content-Type: {$fileType};\n" .
" name=\"{$fileName}\"\n" .
"Content-Transfer-Encoding: base64\n\n" .
$data . "\n\n" .
"--{$mimeBoundary}--\n";
}
} else {
echo "Invalid File.";
}
}
$sent = mail($to, $subject, $message, $headers);
if ($sent) {
echo '<meta http-equiv="refresh" content="0;url=http://website.co.uk/html/thankyou.html">';
} else {
echo "Sorry, we have encoutered a problem sending your message. Please try again or get in touch via the contact page";
}
?>
理想情况下，我需要循环使用2种输入文件类型（第二种是可选的，因此如果用户只上传一张图像，它仍然可以工作）并将它们附加到一封电子邮件中。谢谢。
答案 0 :(得分：0)
当你的循环运行时，它会从头开始重写$ message和$ headers变量，而不是连接。因此，当您实际发送电子邮件时，附件只有一个。
答案 1 :(得分：0)
将$headers和$message移至for循环之外。您已经在$message之外，但是您使用以下代码覆盖它：
/* Multipart Boundary above message */
$message = "This is a multi-part message in MIME format.\n\n" .
"--{$mimeBoundary}\n" .
"Content-Type: text/plain; charset=\"iso-8859-1\"\n" .
"Content-Transfer-Encoding: 7bit\n\n" .
$message . "\n\n";
应该是：
/* Multipart Boundary above message */
$message .= "This is a multi-part message in MIME format.\n\n" .
"--{$mimeBoundary}\n" .
"Content-Type: text/plain; charset=\"iso-8859-1\"\n" .
"Content-Transfer-Encoding: 7bit\n\n" .
$message . "\n\n";
PS：您可以像这样重定向PHP：
header('Location: http://website.co.uk/html/thankyou.html');
另一个PS：您应该通过检查$_POST数组中设置的内容来确保不会出错，然后再尝试访问它们：
$to = isset($_POST['myEmail']) ? $_POST['myEmail'] : NULL;
这是一个三元运算符，基本上是简写：
if(isset($_POST['myEmail'])) {
$to = $_POST['myEmail']
} else {
$to = NULL;
}
答案 2 :(得分：0)
如果你正确地使用foreach循环来逐个获取每个上传的文件以便你可以处理它，你最终会得到类似的结果。
我还没有检查标题的实际内容是否正确我只是假设你说得对，但我确实简化了一些编码并删除了不必要的标量变量创建来保存$ _FILES数组中已经存在的数据在一个完全可用的状态。
/* a boundary string */
$randomVal = md5(time());
$allowedExts = array("gif", "jpeg", "jpg", "png");
/* Start of headers */
$headers = "From: $from";
$mimeBoundary = "==Multipart_Boundary_x{$randomVal}x";
/* Header for File Attachment */
$headers .= "\nMIME-Version: 1.0\n";
$headers .= "Content-Type: multipart/mixed;\n" ;
$headers .= " boundary=\"{$mimeBoundary}\"";
/* Multipart Boundary above message */
$message = "This is a multi-part message in MIME format.\n\n" .
"--{$mimeBoundary}\n" .
"Content-Type: text/plain; charset=\"iso-8859-1\"\n" .
"Content-Transfer-Encoding: 7bit\n\n" .
$message . "\n\n";
foreach ($_FILES['photo'] as $filenumber => $file) {
$temp = explode(".", $file["name"]);
$extension = end($temp);
if ( ($file["type"] == "image/gif"
|| $file["type"] == "image/jpeg"
|| $file["type"] == "image/jpg"
|| $file["type"] == "image/pjpeg"
|| $file["type"] == "image/x-png"
|| $file["type"] == "image/png" )
&& $file["size"] < 3000000
&& in_array($extension, $allowedExts))
{
if ( file($file['tmp_name']) ) {
/* Reading file ('rb' = read binary) */
$fh = fopen($file['tmp_name'],'rb');
$data = fread($fh,filesize($file['tmp_name']));
fclose($fh);
/* Encoding file data */
$data = chunk_split(base64_encode($data));
/* Adding attchment-file to message*/
$message .= "--{$mimeBoundary}\n" .
"Content-Type: {$file['type']};\n" .
" name=\"{$file['name']}\"\n" .
"Content-Transfer-Encoding: base64\n\n" .
$data . "\n\n" .
"--{$mimeBoundary}--\n";
}
} // endif
} // endforeach