Facebook的 - 不能使用<INPUT TYPE =「文件」>標籤

Question

我試圖讓用戶使用下面的PHP

<?php 
echo render_header('Your'); 

define("MAX_SIZE", "1536"); 

function getExtension($str){ 
    $i = strpos($str,"."); 
    if(!$i) {return "";} 
    $l = strlen($str) - $i; 
    $ext = substr($str, $i+1, $l); 
    return $ext; 
} 

$errors = 0; 

if(isset($_POST['Upload'])){ 
    $image = $_FILES["file1"]["name"]; 
    if($image){ 
    $filename = stripslashes($_FILES["file1"]["name"]); 
    $extension = getExtension($filename); 
    $extension = strtolower($extension); 
    if((strcasecmp($extension,"jpg") != 0) && (strcasecmp($extension,"jpeg") != 0) && (strcasecmp($extension,"png") != 0) && (strcasecmp($extension,"gif") != 0)) 
    { 
     $errors = 1; 
    } 
    else{ 
     $size = filesize($_FILES['file1']['tmp_name']); 
     if($size > MAX_SIZE*1024){ 
     $errors = 2; 
     } 
     else{ 
     $image_name = md5(uniqid()) . '.' . $extension; 
     $newname = "../images/" . $image_name; 
     $flName = "/images/" . $image_name; 
     $copied = move_uploaded_file($_FILES['file1']['tmp_name'], $newname); 
     if(!$copied){ 
      $errors = 3; 
     } 
     } 
    } 
    } 
} 

if(isset($_POST['Upload']) && $errors == 0){ 
    //add to database here 
    ... 
    if($errors == 0){ 
    include "uploadedFile.php"; 
    } 
} 
else{ 

$user_details = $fb->api_client->users_getInfo($user, 'first_name,last_name,pic_square'); 
$image_url = $user_details[0]['pic_square']; 
if($image_url == ""){ 
    $image_url = "http://static.ak.fbcdn.net/pics/q_silhouette.gif"; 
} 
$user_name = $user_details[0]['first_name'] . " " . $user_details[0]['last_name']; 
if(isset($_POST['Upload']) && $errors == 0){ 
?> 
<div id="error" class="error"> 
<h2 id="standard_error" name="standard_error">Failed to upload tattoo.</h2> 
<p id="standard_explanation" name="standard_explanation"> 
Error uploading file. This error occurred because either the photo was a size we don't support or there was a problem with the image file. 
<br/> 
</p> 
</div> 
<?php 
} 
?> 
<div id="newalbum" align="center"> 
<form id="upload" enctype="multipart/form-data" name="upload" action="" method="post"> 
<table class="formtable" cellspacing="0" border="0"> 
<tbody> 
<tr class="tallrow"> 
<td class="label"> 
Upload Image: 
<br/> 
<small> 
You can upload 
<br/> 
JPG, GIF or PNG 
<br/> 
files. 
</small> 
</td> 
<td> 
<div id="files"> 
<div id="1"> 
<input id="file1" class="inputfile" type="file" name="file1" size="22"/> 
</div> 
</div> 
</td> 
</tr> 
</tbody> 
</table> 
<div class="formbuttons"> 
<input id="" class="inputbutton" type="submit" value="Upload Tattoo" name="Upload" /> 
<br/> 
<small>The file size limit 1.5 MB. If your upload does not work, try uploading a smaller picture.</small> 
<br/> 
</div> 
<?php 
} 
?> 

上傳從我的Facebook應用程序上傳圖片文件，但是當我執行這個代碼並且用戶按下「上傳」按鈕，$ _FILES ['file1'] ['name']的值變爲空白。

這段代碼在Facebook應用程序允許的？如果不是什麼是上傳文件的正確方法？

感謝

編輯

好了，所以這個問題是與Facebook。他們從任何請求中刪除所有文件標籤！建議我們使用iframe代替！

感謝大家的幫助！

Answer 1

確定。發現問題。 Facebook在發送請求之前剝去所有文件標籤。解決方案是使用iframe代替。

Answer 2

在嘗試訪問該文件名，試試這個...

switch ($_FILES['file1']['error']) { 
    case UPLOAD_ERR_INI_SIZE: 
    echo '<p class="warning">File Upload Failed! File too large.</p>'; 
    break; 
    case UPLOAD_ERR_FORM_SIZE: 
    echo '<p class="warning">File Upload Failed! File exceeds limit.</p>'; 
    break; 
    case UPLOAD_ERR_PARTIAL: 
    echo '<p class="warning">File Upload Failed! Please try again.</p>'; 
    break; 
    case UPLOAD_ERR_NO_TMP_DIR: 
    echo '<p class="warning">File Upload Failed! No temp directory.</p>'; 
    break; 
    case UPLOAD_ERR_CANT_WRITE: 
    echo '<p class="warning">File Upload Failed! Failed to write to disk.</p>'; 
    break; 
    case UPLOAD_ERR_EXTENSION: 
    echo '<p class="warning">File Upload Failed!</p>'; 
    break; 
} 

這應該告訴你問題所在。

Answer 3

你的HTML標記不會有一個表格結束標記。

<form> 

</form> 

此外，表單的動作要麼指向自己或處理該圖像處理該頁面（在你的情況下，同一個文件）

<?php 
echo("<form id=\"formid\" name=\"formid\" method=\"post\" action=\"".$PHP_SELF."\" 

</form>"); 
?>