PHP文件上傳不起作用，注意輸出到瀏覽器

Question

我試圖爲我的網站建立一個圖片上傳，我只有以下內容沒有任何輸出，但我的網頁呈現好嗎？任何人都可以看到我可能會錯誤\

//if they DID upload a file... 
if($_FILES['profile_image']['name']) 
{ 
    //if no errors... 
    if(!$_FILES['profile_image']['error']) 
    { 
     //now is the time to modify the future file name and validate the file 
     $new_file_name = strtolower($_FILES['profile_image']['tmp_name']); //rename file 
     if($_FILES['profile_image']['size'] > (1024000)) //can't be larger than 1 MB 
     { 
      $valid_file = false; 
      $message = 'Oops! Your file\'s size is to large.'; 
     } 

     //if the file has passed the test 
     if($valid_file) 
     { 
      //move it to where we want it to be 
      move_uploaded_file($_FILES['profile_image']['tmp_name'], 'uploads/'.$new_file_name); 
      $message = 'Congratulations! Your file was accepted.'; 
     } 
    } 
    //if there is an error... 
    else 
    { 
     //set that to be the returned message 
     $message = 'Ooops! Your upload triggered the following error: '.$_FILES['profile_image']['error']; 
    } 
} 

else { 
echo 'success'; 
    } 

---

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


    <input type="file" class="profile_image text-input" name="profile_image" placeholder="Upload a picture"/><br /> 
    <input type="submit" id="signup-com-btn" value="Complete Signup" /> 

</form> 

Answer 1

在你的PHP腳本，你已經賦值的變量$message不同的價值觀，不同的階段，是這樣的：

$message = 'Oops! Your file\'s size is to large.'; 
$message = 'Congratulations! Your file was accepted.'; 
$message = 'Ooops! Your upload triggered the following error: 

但你是不是其實echoing它，所以你沒有得到任何消息。因此，我會建議回顯它，顯然。