使用ajax和php上傳圖像失敗（無錯誤日志）

Question

由於某些原因，以下我用於上傳圖片的代碼失敗了...這是HTML

<form id="image_upload" enctype="multipart/form-data" action="uploadImage.php" method="post" name="prof_picture">
    <input id="image1" style="display:none;" name="image" accept="image/jpeg" type="file">
    <input id="image2" value="Submit" type="submit" style="display:none;">
</form>

PHP （uploadImage.php）

include('../sqlconnection.php');
define ("MAX_SIZE","1000");

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

$valid_formats = array("jpg", "png", "gif", "bmp","jpeg");
if(isset($_POST) and $_SERVER['REQUEST_METHOD'] == "POST") 
{
    $uploaddir = "profile/uploads"; //Image upload directory

    $filename = stripslashes($_FILES['image']['name'][0]);

    echo $filename;

    $size=filesize($_FILES['image']['tmp_name'][0]);

    echo $filename;
    //Convert extension into a lower case format
    $ext = getExtension($filename);
    $ext = strtolower($ext);
    //File extension check
    if(in_array($ext,$valid_formats))
    {
    //File size check
    if ($size < (MAX_SIZE*1024))
    { 
    $image_name=time().$filename; 
    echo "<img src='".$uploaddir.$image_name."' class='imgList'>"; 
    $newname=$uploaddir.$image_name; 
    //Moving file to uploads folder
    if (move_uploaded_file($_FILES['image']['tmp_name'][0], $newname)) 
    { 
    $time=time(); 
    //Insert upload image files names into user_uploads table
    mysql_query("UPDATE table SET image='$image_name' WHERE id='$user_id'");
    }
    else 
    { 
    echo '<span class="imgList">failed</span>'; } 
    }

    else 
    { 
    echo '<span class="imgList">failed</span>'; 
    } 

    } 

    else 
    { 
    echo '<span class="imgList">failed</span>'; 
    } 

} 

JS

$('#image1').on('change', function() {
        $("#image").attr('src',"profile/loading.gif");

        $("#image_upload").ajaxForm({
                        target: '#image'
        }).submit();
});

我肯定知道的是：

1ºphp腳本已正確實現，因為我故意使部分代碼失敗，並收到有關內部php錯誤的錯誤消息。

2º查詢正確完成（或至少按其語法）。

3º與#image相關的javascript函數也起作用。

我只想上傳用戶選擇的一張圖像（即使他選擇了100個其他項目）。 但是正如我所說，我什至在日志中都沒有收到錯誤消息...對此有什么想法嗎？ 非常感謝你！

---

編輯

我更改了代碼

$ext = strtolower($ext);
    if(in_array($ext,$valid_formats)){
        if ($size < (MAX_SIZE*1024)){ 
            $image_name=time().$user_id."--pfi-".$filename;
            $newname=$uploaddir.$image_name;
                if (move_uploaded_file($_FILES['image']['tmp_name'], $newname)){
                    mysql_query("UPDATE table SET image='$image_name' WHERE id='$user_id'");
                }else echo '<span class="imgList">This message appears </span>'; 
        }else echo '<span class="imgList">You have exceeded the size limit!</span>';
    }else echo '<span class="imgList">Unknown extension!</span>';

由於某種原因，它現在停止在if(move_uploaded_file($_FILES['image']['tmp_name'], $newname)) 。 我已經var_dump'd這確實是“假”，但我不明白為什么。 這是var_dump（$ _ FILES）：

array(1) { ["image"]=> array(5) { ["name"]=> string(21) "060424_hubble_big.jpg" ["type"]=> string(10) "image/jpeg" ["tmp_name"]=> string(14) "/tmp/phpZYaDkm" ["error"]=> int(0) ["size"]=> int(35641) } }

---

編輯2

警告：move_uploaded_file（profile / uploads / 1388794617.png）：無法打開流：第37行的profile / uploadProfilePicture.php中沒有此類文件或目錄警告：move_uploaded_file（）：無法將'/ tmp / phppFfoL4'移至'profile /uploads/1388794617.png”（位於第37行的profile / uploadProfilePicture.php中）

我應該如何指定$ uploaddir甚至$ newname？

Answer 1

編輯

這就是我用的。 注意注釋掉的條件語句。

<?php

// include('../sqlconnection.php');
 define ("MAX_SIZE","1000000000");


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

$valid_formats = array("jpg", "png", "gif", "bmp","jpeg");
// if(isset($_POST) and $_SERVER['REQUEST_METHOD'] == "POST") 
// {
    $uploaddir = "profile/uploads/"; //Image upload directory

    $filename = stripslashes($_FILES['image']['name']);

    echo $filename;

    $size=filesize($_FILES['image']['tmp_name']);

    echo $filename;
    //Convert extension into a lower case format
    $ext = getExtension($filename);
    $ext = strtolower($ext);
    //File extension check
    if(in_array($ext,$valid_formats))
    {
    //File size check
    if ($size < (MAX_SIZE*1024))
    { 
    $image_name=time().$filename; 
    echo "<img src='".$uploaddir.$image_name."' class='imgList'>"; 
    $newname=$uploaddir.$image_name; 
    //Moving file to uploads folder
    if (move_uploaded_file($_FILES['image']['tmp_name'], $newname)) 
    { 
    $time=time(); 
    //Insert upload image files names into user_uploads table
//    mysql_query("UPDATE table SET image='$image_name' WHERE id='$user_id'");
    }
    else 
    { 
    echo '<span class="imgList">failed</span>'; } 
    }

    else 
    { 
    echo '<span class="imgList">failed</span>'; 
    } 

    } 

    else 
    { 
    echo '<span class="imgList">failed</span>'; 
    } 

// }

---

原始答案

好的，我發現了問題。 刪除PHP中的所有[0] ，它現在可以工作。 它們用於數組，並且由於您僅將其用於單個文件上傳，因此失敗了。

旁注：您可能要在$uploaddir = "profile/uploads";的末尾添加/ $uploaddir = "profile/uploads"; 如$uploaddir = "profile/uploads/";

以下沒有[0] ，並已將其測試為沒有JS的純PHP。

include('../sqlconnection.php');
define ("MAX_SIZE","1000");

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

$valid_formats = array("jpg", "png", "gif", "bmp","jpeg");
if(isset($_POST) and $_SERVER['REQUEST_METHOD'] == "POST") 
{
    $uploaddir = "profile/uploads"; //Image upload directory

    $filename = stripslashes($_FILES['image']['name']);

    echo $filename;

    $size=filesize($_FILES['image']['tmp_name']);

    echo $filename;
    //Convert extension into a lower case format
    $ext = getExtension($filename);
    $ext = strtolower($ext);
    //File extension check
    if(in_array($ext,$valid_formats))
    {
    //File size check
    if ($size < (MAX_SIZE*1024))
    { 
    $image_name=time().$filename; 
    echo "<img src='".$uploaddir.$image_name."' class='imgList'>"; 
    $newname=$uploaddir.$image_name; 
    //Moving file to uploads folder
    if (move_uploaded_file($_FILES['image']['tmp_name'], $newname)) 
    { 
    $time=time(); 
    //Insert upload image files names into user_uploads table
    mysql_query("UPDATE table SET image='$image_name' WHERE id='$user_id'");
    }
    else 
    { 
    echo '<span class="imgList">failed</span>'; } 
    }

    else 
    { 
    echo '<span class="imgList">failed</span>'; 
    } 

    } 

    else 
    { 
    echo '<span class="imgList">failed</span>'; 
    } 

}