Question

我正在尝试将我上传的图像添加到json文件中，但问题是在json文件中查看时图像路径始终返回null。请帮助。谢谢。这是代码，它已经成功追加了，但是最重要的是图像总是返回null。我想将图像显示到我的json文件中，不再返回null。

PHP

<?php  
 $message = '';  
 $error = '';  
 if(isset($_POST["submit"]))  
 {  
      if(empty($_POST["name"]))  
      {  
           $error = "<label class='text-danger'>Enter Name</label>";  
      }  
      else if(empty($_POST["gender"]))  
      {  
           $error = "<label class='text-danger'>Enter Gender</label>";  
      }  
      else if(empty($_POST["designation"]))  
      {  
           $error = "<label class='text-danger'>Enter Designation</label>";  
      }  
      else  
      {  
           if(file_exists('employee_data.json'))  
           {  
                $current_data = file_get_contents('employee_data.json');  
                $array_data = json_decode($current_data, true);  
                $extra = array(  
                     'name'               =>     $_POST['name'],  
                     'gender'          =>     $_POST["gender"],  
                     'designation'     =>     $_POST["designation"] ,
                     'image'       => $_POST["output"]

                );  
                $array_data['data'][] = $extra;  
                $final_data = json_encode($array_data);  

                if(file_put_contents('employee_data.json', $final_data))  
                {  
                     $message = "<label class='text-success'>File Appended Success fully</p>";  
                }  
           }  
           else  
           {  
                $error = 'JSON File not exits';  
           }  
      }  
 }  
 ?>  
 <!DOCTYPE html>  
 <html>  
      <head>  
           <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.2.0/jquery.min.js"></script>  
           <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" />  
           <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js"></script>  
      </head>  
      <body>  
           <br />  
           <div class="container" style="width:500px;">  
                <h3 align="">Append Data to JSON File</h3><br />                 
                <form method="post">  
                     <?php   
                     if(isset($error))  
                     {  
                          echo $error;  
                     }  
                     ?>  
                     <br />  
                     <label>Name</label>  
                     <input type="text" name="name" class="form-control" /><br />  
                     <label>Gender</label>  
                     <input type="text" name="gender" class="form-control" /><br />  
                     <label>Designation</label>  
                     <input type="text" name="designation" class="form-control" /><br />  
                      <input id="inputFileToLoad" type="file" onchange="encodeImageFileAsURL();" />
                     <hr>

                    <h2>Output</h2>        
                    <div class="output" name="output">
                        <textarea class="form-control"></textarea><br>
                        <a name="new"></a><br><br>
                        <img><br>
                    </div>
                     <input type="submit" name="submit" value="Append" class="btn btn-info" /><br />                      
                     <?php  
                     if(isset($message))  
                     {  
                          echo $message;  
                     }  
                     ?>  
                </form>  
           </div>  
           <br />  
      </body>  
 </html>  

 <script type="text/javascript">
   function encodeImageFileAsURL(cb) {
    return function(){
        var file = this.files[0];
        var reader  = new FileReader();
        reader.onloadend = function () {
            cb(reader.result);
        }
        reader.readAsDataURL(file);
    }
}

$('#inputFileToLoad').change(encodeImageFileAsURL(function(base64Img){
    $('.output')
      .find('textarea')
        .val(base64Img)
        .end()
      .find('a')
        .attr('href', base64Img)
        .text(base64Img)
        .end()
      .find('img')
        .attr('src', base64Img);
}));
 </script>

employee_data.json

{"data":[{"name":"sdfghj","gender":"as","designation":"asdfg","image":null}]}

将上传的文件图像添加到json文件

0 个答案: