上传文件

Question

今天我尝试首次将文件上传到我的网站，但它似乎不起作用。我希望有人能帮助我，我希望我的代码是可读的:)

问题是，当我选择文件，并提交形式，它不被接受，因为$_FILES是NULL

if (move_uploaded_file($_FILES['obrazok']['tmp_name'], $uploadfile)) 

更新的误差

Warning: move_uploaded_file(www_nekonomagic/res/img/anime/uploads/793392545Untitled.jpg): failed to open stream: No such file or directory in /home/gj020900/www_nekonomagic/admin/admin-nove-anime.php on line 107 

Warning: move_uploaded_file(): Unable to move '/home/gj020900/tmp/php9izgwb' to 'www_nekonomagic/res/img/anime/uploads/793392545Untitled.jpg' in /home/gj020900/www_nekonomagic/admin/admin-nove-anime.php on line 107 

短路形式：

<form enctype="multipart/form-data" action="../admin/admin-nove-anime.php" method="post" role="form"> 
    <div class="form-group col-md-6"> 
     <!-- MAX_FILE_SIZE must precede the file input field --> 
     <input type="hidden" name="MAX_FILE_SIZE" value="3145728" /> 
     <label for="obrazok" class=""> Obrázok anime (Max. 3MB):</label> 
     <input type="file" name="obrazok" id="obrazok" class="form-control" required> 
    </div> 
    <div class="form-group col-md-12"> 
     <input type="submit" class="btn btn-success" name="pridaj_anime_submit" value="Pridať anime" style="width: 100%;"> 
    </div> 
</form> 

PHP部分：

if (isset($_POST['pridaj_anime_submit'])) { 
    // skontroluje sa ci sa subor ulozil ak ano pokracuje ak nie napise chybu 
    $uploaddir = '/www_nekonomagic/res/img/anime/uploads/'; 
    $uploadfile = $uploaddir . basename($_FILES['obrazok']['name']); 
    if (move_uploaded_file($_FILES['obrazok']['tmp_name'], $uploadfile)) { 
     // prva cast formy 
     $nazov = mysqli_real_escape_string($connect_to_db, $_POST['nazov']); 
     $rok = mysqli_real_escape_string($connect_to_db, $_POST['rok']); 
     $pocet = mysqli_real_escape_string($connect_to_db, $_POST['pocet']); 
     $preklad = mysqli_real_escape_string($connect_to_db, $_POST['preklad']); 
     $stav = mysqli_real_escape_string($connect_to_db, $_POST['stav']); 

     $sql_vloz_anime = "INSERT INTO anime (a_name, a_year, a_translated_min, a_translated_max, a_rate_min, a_rate_max, a_edit, a_condition) 
            VALUES ('$nazov', '$rok', '0', '$pocet', '8', '10', '$preklad', '$stav')"; 
     mysqli_query($connect_to_db, $sql_vloz_anime); 
     $sql_ziskaj_a_id_pridaneho_anime = "SELECT * FROM anime WHERE a_name = '$nazov'"; 
     $run_sql_ziskaj_a_id_pridaneho_anime = mysqli_query($connect_to_db, $sql_ziskaj_a_id_pridaneho_anime); 
     $a_id_ziskane = ""; 

     while ($db_data = mysqli_fetch_assoc($run_sql_ziskaj_a_id_pridaneho_anime)) { 
      $a_id_ziskane = $db_data['a_id']; 
     } 

     // druha cast formy 
     $obrazok = mysqli_real_escape_string($connect_to_db, $uploaddir.$_FILES['obrazok']['name']); 
     $zaciatok = mysqli_real_escape_string($connect_to_db, $_POST['zaciatok']); 
     $koniec = mysqli_real_escape_string($connect_to_db, $_POST['koniec']); 
     $cas = mysqli_real_escape_string($connect_to_db, $_POST['cas']); 
     $akihabara = mysqli_real_escape_string($connect_to_db, $_POST['akihabara']); 

     $sql_vloz_anime_info = "INSERT INTO anime_info (a_id, a_img, a_start, a_stop, a_time_ep, a_akihabara) 
              VALUES ('$a_id_ziskane', '$obrazok', '$zaciatok', '$koniec', '$cas', '$akihabara')"; 
     mysqli_query($connect_to_db, $sql_vloz_anime_info); 
    } 
    else { 
     echo " 
      <div class=\"alert alert-success alert-info\" style=\"margin: 10px 0\"> 
       <a href=\"#\" class=\"close\" data-dismiss=\"alert\" aria-label=\"close\">&times;</a> 
       <strong>POZOR!</strong> Súbor sa nepodarilo nahrať. 
      </div> 
     "; 
    } 
} 

Answer 1

MAX_FILE_SIZE是以字节为单位来上传文件大小限制为3M，你的大小转换为字节。

1024 * (1024 * 3) // 3145728 

然后改变你的隐藏输入以下

<!-- MAX_FILE_SIZE must precede the file input field --> 
    <input type="hidden" name="MAX_FILE_SIZE" value="3145728" /> 

Answer 2

更改自己的上传目录路径线：

$uploaddir = '/www_nekonomagic/res/img/anime/uploads/'; 

你忘了一个反斜杠添加到上传结束。如上所述更改并检查文件是否被保存在目录中。谢谢。

尝试检查，如果临时文件被上传或不作为：

if(is_uploaded_file($_FILES['obrazok']['tmp_name'])) { 
echo "Temp file uploaded. \r\n"; 
} else { 
echo "Temp file is not uploaded. \r\n"; 
} 

Answer 3

一切都很好。你只需要改变这一点：

$uploaddir = '/www_nekonomagic/res/img/anime/uploads/'; 

到

$uploaddir = 'www_nekonomagic/res/img/anime/uploads/';