PHP无法正常工作

我正在使用AJAX窗体通过ajax在我的网站上载个人资料图片，但事情是我无法做到。我做了一个PHP页面，表单将通过ajax发布。看一看：PHP无法正常工作

<?php 
$file = $_FILES["file"]; 
$filename = $_FILES["file"]["name"]; 
$tempdir = $_FILES["file"]["tmp_name"]; 
$error = $_FILES["file"]["error"]; 
$type = $_FILES["file"]["type"]; 
$size = $_FILES["file"]["size"]; 

$maxsize = 524288; 
$allowedtypes = array("image/png", "image/jpg", "image/jpeg", "image/bmp"); 

$errormsg = ""; 
if(!empty($error)) 
{ 
    switch($error) 
    { 
     case '1': 
      $errormsg = 'The uploaded file exceeds the upload_max_filesize directive in php.ini'; 
      break; 
     case '2': 
      $errormsg = 'The uploaded file exceeds the MAX_FILE_SIZE directive that was specified in the HTML form'; 
      break; 
     case '3': 
      $errormsg = 'The uploaded file was only partially uploaded'; 
      break; 
     case '4': 
      $errormsg = 'No file was uploaded.'; 
      break; 
     case '6': 
      $errormsg = 'Missing a temporary folder'; 
      break; 
     case '7': 
      $errormsg = 'Failed to write file to disk'; 
      break; 
     case '8': 
      $errormsg = 'File upload stopped by extension'; 
      break; 
     default: 
      $errormsg = 'No error code avaiable'; 
    } 
} elseif(empty($tmpdir) || $tmpdir == 'none') { 
    $errormsg = 'No file was uploaded..'; 
} elseif(!in_array($type, $allowedtypes) || $size > $maxsize) { 
    $errormsg = 'Either image type not supported or size is extending 512 KB'; 
} else { 
    $filename = $_SESSION["username"]; 
    $filename_array = explode(".",$_POST["filename"]); 
    $extension = array_pop($filename_array); 
    $path = 'folder/' . Utilities::GetDefaultPicturePath() . $filename . "." . $extension; 
    $location = $path . $filename; 
    move_uploaded_file($tmpdir, $location); 
    //for security reason, we force to remove all uploaded file 
    @unlink($file);  
} 

echo $errormsg; 
?>

这是我的AJAX：

<form action="admin/upload_profile_picture.php" method="post" class="hide" enctype="multipart/form-data" id="form"> 
    <input type="file" id="file" class="hide" name="file" /> 
    <input type="submit" name="submit" id="submit" /> 
</form>

而作为形式隐藏在提交通过另一个按钮叫：

<button class="btn btn-primary" onclick='submitForm();'>Save changes</button>

和文件盒子被打开通过：

<button class="btn btn-primary" id="upload">Upload</button>

$("#upload").click(function() { 
    $("#file").click(); 
}); 

$("#save").click(function() { 
    $("#submit").click(); 
});

最后是ajaxForm() jQuery插件脚本是在这里：ND这两个按钮的点击通过该脚本调用

$('#form').ajaxForm(function (data) { 
    console.log(data); 
});

正如你可以看到，我记录返回的数据。我总是提交表单的是“没有文件上传..”。正如你可以在我的PHP页面上看到的那样，只有在文件的临时目录为空时才会打印该错误，并将其设置为“无”。

那么，什么是问题，我该如何解决这个问题。

谢谢。

来源

2013-12-19 Mohammad Areeb Siddiqui

如果您查看浏览器控制台的网络检查器，它是否显示正在上传的文件？ –

您在第4行分配结果$ TEMPDIR并检查以下

来源

2013-12-19 09:11:27

Lol，sharp，+1发现这很快。 –

对不起，但我不明白。你能解释一下吗？ :) –

变量名称不同。请注意，您将赋值 '$ tempdir = $ _FILES [“file”] [“tmp_name”];' 然后您检查 'elseif（empty（$ tmpdir）|| $ tmpdir =='none'）''。 $ tmpdir是未分配的变量，不同于$ tempdir –

然后TMPDIR $在代码中，你是把move_uploaded_file逻辑在过去的其他条件。

if(){ 
    ............................ 
} 
elseif(empty($tmpdir) || $tmpdir == 'none') { 
    $errormsg = 'No file was uploaded..'; 
} elseif(!in_array($type, $allowedtypes) || $size > $maxsize) { 
    $errormsg = 'Either image type not supported or size is extending 512 KB'; 
} else { 
    $filename = $_SESSION["username"]; 
    $filename_array = explode(".",$_POST["filename"]); 
    $extension = array_pop($filename_array); 
    $path = 'folder/' . Utilities::GetDefaultPicturePath() . $filename . "." . $extension; 
    $location = $path . $filename; 
    move_uploaded_file($tmpdir, $location); 
    //for security reason, we force to remove all uploaded file 
    @unlink($file);  
}

由于TMPDIR是之前文件移动空的，所以控制去块：您移动文件后，有理想

elseif(empty($tmpdir) || $tmpdir == 'none') { 
     $errormsg = 'No file was uploaded..'; 
    }

上述检查应予以补充。

而在最后的其他条件文件被移动到tmpdir，所以检查filemove后的目录你会发现它。

来源

2013-12-19 09:21:55

PHP无法正常工作

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