Question

我有一个管理页面，管理员将在表单中插入新产品。我无法上传图片，收到未定义的fileToUpload错误。我需要上传图像并将图像名称存储到数据库中。

这是我的代码：

session_start();
include_once '../inc/config.php';

if(!isset($_SESSION['admin']))
{
  header('Location: login.php');
  exit;
}

if(isset($_POST['insert'])) 
{
$cname = mysqli_real_escape_string($connect, $_POST['cname']);
$ccost = mysqli_real_escape_string($connect, $_POST['ccost']);
$ctype = mysqli_real_escape_string($connect, $_POST['ctype']);
$cimage = mysqli_real_escape_string($connect, $_POST['cimage']);
$ccapa = mysqli_real_escape_string($connect, $_POST['ccapa']);
$cstatus = mysqli_real_escape_string($connect, $_POST['cstatus']);

$target_dir = "uploads/";
$target_file = $target_dir . basename($_FILES["fileToUpload"]["name"]);
$uploadOk = 1;
$imageFileType = pathinfo($target_file,PATHINFO_EXTENSION);

$check = getimagesize($_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;
}

if (file_exists($target_file)) {
echo "Sorry, file already exists.";
$uploadOk = 0;
}
// Check file size
 if ($_FILES["fileToUpload"]["size"] > 500000) {
 echo "Sorry, your file is too large.";
 $uploadOk = 0;
 }
// Allow certain file formats
if($imageFileType != "jpg" && $imageFileType != "png" && $imageFileType 
!= "jpeg"
&& $imageFileType != "gif" ) {
echo "Sorry, only JPG, JPEG, PNG & GIF files are allowed.";
$uploadOk = 0;
}
// Check if $uploadOk is set to 0 by an error
if ($uploadOk == 0) {
echo "Sorry, your file was not uploaded.";
// if everything is ok, try to upload file
} else {
if (move_uploaded_file($_FILES["fileToUpload"]["tmp_name"], 
$target_file)) {
    echo "The file ". basename( $_FILES["fileToUpload"]["name"]). " has been uploaded.";
} else {
    echo "Sorry, there was an error uploading your file.";
}
}

if(mysqli_query($connect, "INSERT INTO cars(car_name, car_type, image, rent_cost, capacity, status) VALUES
    ('".$cname."', '".$ctype."', '". basename( $_FILES["fileToUpload"]["name"]). "', '".$ccost."', '".$ccapa."', '".$cstatus."')")){
        $success = "<div class='alert alert-success'><strong>Successfully Inserted!</strong></div>";
    }else{
        $errormsg = "<div class='alert alert-danger'>Error inserting item.</div>";
    }
}

我的HTML代码：

＆＃13;

<div id="insert" class="collapse">
    </br>
	<form class="form-horizontal" method="post" action="">
<fieldset>

<!-- Form Name -->
<legend>Insert an Item</legend>

<!-- Text input-->
<div class="form-group">
  <label class="col-md-4 control-label" for="textinput">Car Name</label>  
  <div class="col-md-4">
  <input id="textinput" name="cname" type="text" placeholder="Enter car name.." class="form-control input-md" required="">
    
  </div>
</div>

<!-- Text input-->
<div class="form-group">
  <label class="col-md-4 control-label" for="textinput">Rent Cost</label>  
  <div class="col-md-4">
  <input id="textinput" name="ccost" type="number" placeholder="Enter rent cost.." class="form-control input-md" required="">
    
  </div>
</div>

<!-- Text input-->
<div class="form-group">
  <label class="col-md-4 control-label" for="textinput">Car Type</label>  
  <div class="col-md-4">
  <input id="textinput" name="ctype" type="text" placeholder="Enter car type.." class="form-control input-md" required="">
  </div>
</div>

<!-- File Button --> 
<div class="form-group">
  <label class="col-md-4 control-label" for="filebutton">Image File</label>
  <div class="col-md-4">
    <input id="filebutton" name="fileToUpload" class="input-file" type="file">
  </div>
</div>

<!-- Text input-->
<div class="form-group">
  <label class="col-md-4 control-label" for="textinput">Capacity</label>  
  <div class="col-md-4">
  <input id="textinput" name="ccapa" type="number" placeholder="Enter car capacity.." class="form-control input-md" required="">
    
  </div>
</div>

<!-- Select Basic -->
<div class="form-group">
  <label class="col-md-4 control-label" for="selectbasic">Status</label>
  <div class="col-md-4">
    <select id="selectbasic" name="cstatus" class="form-control">
      <option value="Available">Available</option>
      <option value="Not Avaialble">Not Available</option>
    </select>
  </div>
</div>

<!-- Button -->
<div class="form-group">
  <label class="col-md-4 control-label" for="singlebutton"></label>
  <div class="col-md-4">
    <button id="singlebutton" name="insert" class="btn btn-success">Insert</button>
  </div>
</div>

</fieldset>
</form>

  </div>

＆＃13;

谢谢！

Answer 1

尝试以下方法：

将enctype="multipart/form-data"添加到您的表单标记
确保您的服务器可以接受POST并上传数据大到足以容纳文件的大小
在提交表单后执行print_r($_FILES)查看是否 $_FILES["fileToUpload"]已定义

Answer 2

您需要在{form}之后的void main (string args[]) { string ui_string = """ <?xml version="1.0" encoding="UTF-8"?> <interface> <object class="MyCustomWidget"> </object> </interface> """; Gtk.init (ref args); // create a throw-away instance of MyCustomWidget var tmp = new MyCustomWidget (); Gtk.Builder builder = new Gtk.Builder.from_string (ui_string, ui_string.length); }中添加enctype="multipart/form-data"。否则，发送到服务器的数据将无法识别。

Answer 3

感谢那些回答我问题的人。我已经解决了我的问题。

对于未定义的变量，我只需将其放在isset中（$ _ POST（[＆＃39; insert＆＃39;]）。
对于PHP上传脚本，我只需要删除： $check = getimagesize($_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; }
是的，enctype =＆＃34; multipart / form-data＆＃34;标记中需要将图像/媒体发布到服务器。

并修复了它。

PHP图像上传 - 未定义的fileToUpload

3 个答案: