通过phpmailer仅附加第三个文件

Question

我正在通过phpmailer发送带有多个附件的电子邮件。 我用来发送多个附件的循环是“带有附件的邮件”，仅包含最后选择的文件，而前两个或一个文件未发送。 Loop有问题吗？ 请 ：

     foreach($_FILES as $key => $file){
    $target_path = "uploads/";
    $target_path = $target_path .basename($file['name']);

   if(move_uploaded_file($file['tmp_name'], $target_path)) {
   echo "the file ".basename($file['name'])." has been uploaded";
   }else {
  echo "there was an error";
   }
  mail->AddAttachment($target_path);
   }

     <form id=
       "mail" name="mail" method="POST" action="<?php $PHP_SELF ?>" 
    enctype="multipart/form-data">
     <input type="file" name="uploaded" multiple="" />
    <input name="Submit1" type="submit" value="Submit"  />
    </form>

Answer 1

将[]添加到输入字段的名称，如下所示：

<input type="file" name="uploaded[]" multiple="" />

每个文件使用相同的名称“上载”，因此“上载”将被处理的每个连续文件替换。 通过添加方括号，每个后续文件都将添加到“已上传”数组中。 这是添加[]后得到的$_FILES数组：

Array
(
  [uploaded] => Array
    (
      [name] => Array
        (
          [0] => file4.txt
          [1] => file1.txt
          [2] => file2.txt
          [3] => file3.txt
        )

      [type] => Array
        (
          [0] => text/plain
          [1] => text/plain
          [2] => text/plain
          [3] => text/plain
        )

      [tmp_name] => Array
        (
          [0] => C:\temp\php95.tmp
          [1] => C:\temp\php96.tmp
          [2] => C:\temp\php97.tmp
          [3] => C:\temp\php98.tmp
        )

      [error] => Array
        (
          [0] => 0
          [1] => 0
          [2] => 0
          [3] => 0
        )

      [size] => Array
        (
          [0] => 7
          [1] => 2850
          [2] => 27
          [3] => 231
        )
    )
)

每个数组中的索引0是一个文件，每个数组中的索引1是下一个文件，依此类推。

---

这也是获得相同名称的多个复选框的值的方式。 （有关示例，请参见此评论 。

---

这是循环浏览上载文件的方法。

// first get the count of how many files are uploaded
$numFiles = count(array_filter($_FILES['uploaded']['name']));

for ($i = 0; $i < $numFiles; ++$i) {
    $target_path = 'c:/temp/' . basename($_FILES['uploaded']['name'][$i]);
    if(move_uploaded_file($_FILES['uploaded']['tmp_name'][$i], $target_path)) {
        echo "the file ".basename($_FILES['uploaded']['name'][$i])." has been uploaded<br />";
    }
}

注意，我如何在for循环中使用$i来跟踪当前文件的索引。

（如果您想知道为什么我调用array_filter()来获取计数，如果您不上传任何文件，则看起来空白条目会自动存在array_filter()会删除该空白/无效条目。）

Answer 2

尝试通过循环将每次迭代的唯一编号添加到每个文件，如下所示：

$counter = 0;
foreach($_FILES as $key => $file){
    $counter++;
    $target_path = "uploads/";
    $target_path = $target_path .basename($file['name'], ".jpg") . $counter . ".jpg";



if(move_uploaded_file($file['tmp_name'], $target_path)) {
   echo "the file ".basename($file['name'])." has been uploaded";
   }else {
  echo "there was an error";
   }
  mail->AddAttachment($target_path);
   }

 <form id=
   "mail" name="mail" method="POST" action="<?php $PHP_SELF ?>" 
enctype="multipart/form-data">
 <input type="file" name="uploaded" multiple="" />
<input name="Submit1" type="submit" value="Submit"  />