$_POST中是否显示输入类型=文件 - Does input type=files appear in $_POST?

Does input type=files appear in $_POST?

我在表单中有这个，我想作为一个输入名称，我应该能够用$_POST[]检测它，但我看不到它。这可以解释当我对它进行设置时，什么都不会发生。我理解不对吗？

<input type="file" id="files" name="files"  class="hidden" multiple="" >
<label for="files">Select file</label>

您可以访问$_FILES 中发布的文件数据

您可以在$_FILES 中获取文件名、文件类型、tmp_name、错误、大小

简单的例子是：

Html:

<form action="upload_manager.php" method="post" enctype="multipart/form-data">
    <h2>Upload File</h2>
    <label for="fileSelect">Filename:</label>
    <input type="file" name="photo" id="fileSelect"><br>
    <input type="submit" name="submit" value="Upload">
</form>

在php:中

<?php
if($_FILES["photo"]["error"] > 0){
    echo "Error: " . $_FILES["photo"]["error"] . "<br>";
} else{
    echo "File Name: " . $_FILES["photo"]["name"] . "<br>";
    echo "File Type: " . $_FILES["photo"]["type"] . "<br>";
    echo "File Size: " . ($_FILES["photo"]["size"] / 1024) . " KB<br>";
    echo "Stored in: " . $_FILES["photo"]["tmp_name"];
}
?>

文件存储在$_FILES中，而不是$_POST 中

$_FILES变量

PHP文件上传手册。

html表单：

<form action="upload.php" method="post" enctype="multipart/form-data">
    Select image to upload:
    <input type="file" name="fileToUpload" id="fileToUpload">
    <input type="submit" value="Upload Image" name="submit">
</form>

upload.php

<?php
$target_dir    = "uploads/";
$target_file   = $target_dir . basename($_FILES["fileToUpload"]["name"]);
$uploadOk      = 1;
$imageFileType = pathinfo($target_file, PATHINFO_EXTENSION);
// Check if image file is a actual image or fake image
if (isset($_POST["submit"]))
{
      $check = getimagesize($_FILES["fileToUpload"]["tmp_name"]);
      if ($check !== false)
      {
            echo "File is an image - " . $check["mime"] . ".";
            $uploadOk = 1;
      }
      else
      {
            echo "File is not an image.";
            $uploadOk = 0;
      }
}
?>