Question

我正在使用表单供用户将文件上传到我的网站。我想让他们一次上传多张照片，所以我使用HTML5“多重”属性。

我的HTML：

<form method="post" action="save.php">
    <input type="file" name="uploads[]" multiple="multiple" />
    <input type="submit" name="submit" value="submit"/>
</form>

save.php：

<?php
  foreach ($_FILES['uploads']['name'] as $file) {
    echo $file . "<br/>";
    $file= time() . $_FILES['uploads']['name'];
    $target= UPLOADPATH . $file;
    move_uploaded_file($_FILES['uploads']['tmp_name'], $target)
    or die('error with query 2');
   }

但是，由于某种原因，当我运行脚本时，我收到一个错误，说明未定义索引：上传。并且有一个错误说我为foreach（）提供了一个无效的参数。我有什么不对的？

由于

更新

好的，设置enctype="mulitpart/form-data"有效。现在，我在移动文件时遇到了麻烦。我收到错误move_uploaded_file() expects parameter 1 to be string, array given。我在这里做错了什么？

再次感谢

Answer 1

您需要正确的enctype才能上传文件。

<form method="post" enctype="multipart/form-data" action="save.php">

Answer 2

试试这个HTML代码：<form method="post" action="save.php" enctype="multipart/form-data"> 然后在PHP中：

if(isset($_FILES['uploads'])){
foreach ($_FILES['uploads']['name'] as $file) {
    echo $file . "<br/>";
    $file= time() . $_FILES['uploads']['name'];
    $target= UPLOADPATH . $file;
    move_uploaded_file($_FILES['uploads']['tmp_name'], $target)
    or die('error with query 2');
   }
} else {
   echo 'some error message!';
}

Answer 3

要首先上传文件，您需要在enctype="multipart/form-data"代码上<form>。

但是，当您上传多个文件时，$_FILES['uploads']中的每个键都是一个数组（就像$_FILES['uploads']['name']）。

循环时需要获取数组键，以便处理每个文件。有关更多详细信息，请参阅docs for move_uploaded_file。

<?php
  foreach ($_FILES['uploads']['name'] as $key=>$file) {
    echo $file."<br/>";
    $file = time().$file;
    $target = UPLOADPATH.$file;
    move_uploaded_file($_FILES['uploads']['tmp_name'][$key], $target)
    or die('error with query 2');
}

Answer 4

的index.html

<form method="post" action="save.php" enctype="multipart/form-data">
    <input type="file" name="uploads[]" multiple="multiple" />
    <input type="submit" name="submit" value="Upload Image"/>
</form>

save.php

<?php    
  $file_dir  = "uploads";    
  if (isset($_POST["submit"])) {

    for ($x = 0; $x < count($_FILES['uploads']['name']); $x++) {                

      $file_name   = time() . $_FILES['uploads']['name'][$x];
      $file_tmp    = $_FILES['uploads']['tmp_name'][$x];

      /* location file save */
      $file_target = $file_dir . DIRECTORY_SEPARATOR . $file_name;

      if (move_uploaded_file($file_tmp, $file_target)) {                        
        echo "{$file_name} has been uploaded. <br />";                      
      } else {                      
        echo "Sorry, there was an error uploading {$file_name}.";   
      }                 

    }               
  }    
?>

使用PHP上传文件

4 个答案: