Json 不存储输入文件的值

Question

您好，我最近创建了一个这样的表单：

 <form method="post" Action="Save.php" enctype="multipart/form-data">
 <label>Nome:</label><br><br>
 <input name="Nome" ><br><br>
 <label>Imagem:</label><br><br>
 <div class='input-wrapper'>
  <label for='input-file'>
     Select a file
   </label>
 <input type="File" name="img" id="input-file"><br></div><br><label>Mensagem:</label><br><br><textarea name="msg"></textarea>
 <br><br>
 <input type="submit" class="btn_post">
 </form>

而不是 save.php 看起来像这样：

<?php
// Here is more debug information:      
$values = json_encode($_POST);

// Stores received values ​​at the end of the file.
file_put_contents('save.json', $values, FILE_APPEND);

然后当我发送表单时，它在 save.json 中看起来像这样：

{"Nome":"Nicolas","img":"aef9bd64-6990-4f08-8238-2baf005f42f7.jpg","msg":"Incredible"}

到目前为止一切顺利，因为我得到了用户在输入文件中发送的文件的名称， 但我没有收到文件（图片），所以我把这段代码放在 ** Save.php ** 中，如下所示：

  <?php
 //
 // Take the post request and transform it into JSON.
 $values = json_encode($_POST);

 // Stores received values ​​at the end of the file.
 file_put_contents('save.json', $values, FILE_APPEND);
 $uploaddir = 'img/';
 $uploadfile = $uploaddir . basename($_FILES['img']['name']);

 echo '<pre>';
 if (move_uploaded_file($_FILES['img']['tmp_name'], $uploadfile)) {
     echo "Valid file and sent successfully.\ N";
 } else {
     echo "Possible file upload attack! \ N";
 }

 echo 'Here is more debug information:';
 print_r($_FILES);

 print "</pre>";

所以现在我在 $ uploaddir 中声明的文件夹中获取文件，加上 save.json 看起来像这样：

{"Nome":"Nicolas","msg":"Incredible"}

也就是说，我不再接收输入文件的值出了什么问题？

Answer 1

未经过测试，但您也许可以做类似的事情：

<?php

    if( $_SERVER['REQUEST_METHOD']=='POST' && !empty( $_FILES ) ){
        
        # create the json variable and add attributes of the $_FILES object to the output
        $values=json_encode( $_POST );
        $values->filename=$_FILES['img']['name'];
        $values->size=$_FILES['img']['size'];
        
        # do the upload processing as previously
        $uploaddir = 'img/';
        $uploadfile = $uploaddir . basename( $_FILES['img']['name'] );

        #move the file as per previous
        if( move_uploaded_file( $_FILES['img']['tmp_name'], $uploadfile ) ) {
            $status="Arquivo válido e enviado com sucesso.";
        } else {
            $status="Possível ataque de upload de arquivo!";
        }   
        
        
        #store status of upload 
        $values->status=$status;
        $values->savepath=$uploadfile;
        
        # store with more info
        file_put_contents('save.json', $values, FILE_APPEND );
    
    }