网站表单 - 多个文件上传[重复]

Question

所以我搜索了很多类似的问题，但似乎找不到解决方案。

我有一个联系表格，我希望它能够发送多张图片。我现在拥有的代码有三个图片输入字段，但现在我只知道如何让其中一张图片上传和发送。我很确定我需要某种循环或数组，但这不是我的强项。

HTML

        <form action="test.php" method="post" autocomplete="on" enctype="multipart/form-data" accept-charset='UTF-8'>
        <fieldset><label for="Name">Name <sup>*</sup></label>
        <input name="name" placeholder="full name" id="Name" required="" autofocus><br>

        <label for="email">E-mail <sup>*</sup></label>
        <input type="email" name="email" placeholder="youremail@domain.com" id="email" required=""><br>

        <label for="phoneNumber">Phone # <sup>*</sup></label>
        <input type="tel" name="phone" placeholder="XXX-XXX-XXXX" id="phoneNumber" required=""><br>
        </fieldset>
        <fieldset>
        <label for="year">Year <sup>*</sup></label>
        <input type="text" name="year" placeholder="year of car" id="year" required=""><br>

        <label for="make">Make <sup>*</sup></label>
        <input type="text" name="make" placeholder="make of car" id="make" required=""><br>

        <label for="model">Model <sup>*</sup></label>
        <input type="text" name="model" placeholder="model of car" id="model" required=""><br>
        </fieldset>
        <label for="State" class="state">State <sup>*</sup></label><br>
        <input type="text" class="state" name="state" id="state" placeholder="Do not enter if you are human">

        <fieldset>
        <legend>Add Photos <sup>*</sup></legend>
        <input type="file" name="attachment" required=""><br>
        <input type="file" name="attachment"><br>
        <input type="file" name="attachment"><br>
        </fieldset>

        <label for="comments">Comments</label><br>
        <textarea  style="float: left;" rows="4" name="comment" id="comments" placeholder="additional comments"></textarea>
        <br>

        <input class="button" type="submit" name="submit" value="Send" class="button">

        <p class="required"><sup>*</sup> denotes a required field.</p>

    </form>

PHP

<?php

$to = '';
$name = $_POST['name'];
$email  =   $_POST ['email'];
$phone = $_POST['phone'];
$year = $_POST['year'];
$make = $_POST['make'];
$model = $_POST['model'];
$comment = $_POST['comment'];
$state = $_POST['state'];
$message = "

Name: $name
E-mail: $email
Phone: $phone
Year: $year
Make: $make
Model: $model
Message: $comment
";

if($_POST['state'] != ''){
echo "It appears you are a bot!";
exit();
}
else{
//process the rest of the form
}

/* GET File Variables */
$tmpName = $_FILES['attachment']['tmp_name'];
$fileType = $_FILES['attachment']['type'];
$fileName = $_FILES['attachment']['name'];

/* Start of headers */
$headers = "From: $name $email";

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";
}


$flgchk = mail ("$to", "$subject", "$message", "$headers");

if($flgchk){
echo "A email has been sent. We will get back to you as soon as
possible.";
}
else{
echo "Error in Email sending";
}
?>

Answer 1

您的所有三个字段都被命名为“附件”。给它们起唯一的名称，例如“attachment1”、“attachment2”等。

然后在您的上传中使用它：

for ($x = 1; $x <= $numberOfFiles; ++$x) {
    $tmpName = $_FILES['attachment'.$x]['tmp_name']; 
    $fileType = $_FILES['attachment'.$x]['type']; 
    $fileName = $_FILES['attachment'.$x]['name'];
    // do your upload here
}

您甚至可以在这样的循环中执行此操作，这将允许您在不更改后端代码的情况下添加更多文件字段（可能使用 JavaScript），只要您保持命名模式一致即可。

$x = 1;
while (isset($_FILES['attachment'.$x])) {
        $tmpName = $_FILES['attachment'.$x]['tmp_name']; 
        $fileType = $_FILES['attachment'.$x]['type']; 
        $fileName = $_FILES['attachment'.$x]['name'];
        // do your upload here
        ++$x;
}

这只是在每个周期增加x，并检查是否发送了具有该名称的文件。

在有人用大文件和/或网络垃圾填满您的收件箱之前，您可能还应该检查文件的大小和类型。

---

更新：这对您来说应该是一个最完整的解决方案。我目前无法为您测试它，因此它可能无法直接开箱即用，但它至少应该为您指明正确的方向。在这段代码 sn-p 中，它首先设置电子邮件的初始部分，然后循环并一次添加每个文件。

<?php
$to = '';
$name = $_POST['name'];
$email  = $_POST ['email'];
$phone = $_POST['phone']; 
$year = $_POST['year']; 
$make = $_POST['make']; 
$model = $_POST['model']; 
$comment = $_POST['comment']; 
$state = $_POST['state']; 
$message = "Name: $name
E-mail: $email
Phone: $phone
Year: $year
Make: $make
Model: $model
Message: $comment";

if($_POST['state'] != ''){
    echo "It appears you are a bot!";
    exit();
}

/* Start of headers */ 
$headers = "From: $name $email"; 

/* 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";

/* Loop through files */
$x = 1;
while (isset($_FILES['attachment'.$x])) {
    /* GET File Variables */ 
    $tmpName = $_FILES['attachment']['tmp_name']; 
    $fileType = $_FILES['attachment']['type']; 
    $fileName = $_FILES['attachment']['name']; 

    /* Skip invalid files */
    if (!file($tmpName)) {
        ++$x;
        continue;
    }

    /* Reading file ('rb' = read binary)  */
    $file = fopen($tmpName,'rb'); 
    $data = fread($file,filesize($tmpName)); 
    fclose($file); 

    /* 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";

    ++$x;
}

/* Close the message */
$message .= "--{$mimeBoundary}--\n";

$flgchk = mail ("$to", "$subject", "$message", "$headers"); 

if($flgchk){
    echo "A email has been sent. We will get back to you as soon as possible.";
} else {
    echo "Error in Email sending";
}
?>