这是我到目前为止尝试过的,它不工作。 HTML文件包含: -如何通过AJAX和PHP上传表单中的文件?
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Form Generator | Upload Driver Specification Sheet</title>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.5.1/jquery.min.js"></script>
<script type='text/javascript'>
function submit_form() {
var formData = new FormData($(this)[0]);
$.ajax({
url: 'last_file_action.php',
type: 'POST',
data: formData,
async: false,
success: function (data) {
$('#results').html(data);
},
cache: false,
contentType: false,
processData: false
});
return false;
}
</script>
</head>
<body class="gray-bg3_full">
<form class="m-t" role="form" id='data' method="post" enctype="multipart/form-data">
<input type="hidden" name="MAX_FILE_SIZE" value="2000000">
<div class="form-group">
<p id='new_project_text'>Please include your Product spec sheet: </p>
<input class="btn btn-primary-save btn-block" type="file" name="userfile" /> <i class="fa fa-upload"></i> <br/>
</div>
<button type= 'button' id="submit_driver" class="btn btn-warning block full-width m-b m-t" onclick='submit_form()'>Submit</button>
</form>
<div id='results'></div>
</body>
</html>
而且PHP文件即 'last_file_action.php' 包含此: -
<?php
if ($_FILES['userfile']['error'] > 0)
{
switch ($_FILES['userfile']['error'])
{
case 1:
echo "File exceeded upload_max_filesize";
break;
case 2:
echo "File exceeded max_file_size";
break;
case 3:
echo "File only partially uploaded";
break;
case 4:
echo "Please choose a file to upload";
break;
case 6:
echo "Cannot upload file: No temp directory specified";
break;
case 7:
echo "Upload failed: Cannot write to disk";
break;
}
exit;
}
$upfile = 'productinformation/';
if (is_uploaded_file($_FILES['userfile']['tmp_name']))
{
if (!move_uploaded_file($_FILES['userfile']['tmp_name'], $upfile))
{
echo "Problem: Could not move file to destination directory";
exit;
}
}
else
{
echo "Problem: Possible file upload attack. Filename: ";
echo $_FILES['userfile']['name'];
exit;
}
// remove possible HTML and PHP tags from the file's contents
$contents = file_get_contents($upfile);
$contents = strip_tags($contents);
file_put_contents($_FILES['userfile']['name'], $contents);
// show what was uploaded
当我点击提交按钮我得到这个错误“问题:可能的文件上传攻击。文件名:”。这是我自己在PHP文件中设置的错误。即使我没有选择要上传的文件,它也会显示此错误。如果我不选择要上传的文件,我希望它显示错误“请选择要上传的文件”。
没有一致的缩进,很难遵循该代码。 – David
[相关](http://stackoverflow.com/questions/166221/how-can-i-upload-files-asynchronously?rq=1)。 – Kenney
我编辑了这个问题。我希望它更容易为你现在@David –