我一直在寻找通过上传文件 . AJAX使用FormData和FileReader,但我一直遇到同样的问题 .
触发文件上载后,会将其传递给PHP脚本,该脚本验证上载的文件并尝试将其移动到永久目录中 . 不幸的是,虽然验证成功,但调用 move_uploaded_file()
会产生以下警告:
警告:move_uploaded_file([path \ to \ temp \ directory] \ php256.tmp):无法打开流:[line / to / script / file.php]中没有这样的文件或目录[line]警告:move_uploaded_file ():无法将[path \ to \ temp \ directory] \ php256.tmp'移动到[path / to / script / file.php中的'[path \ to \ permanent \ directory] \ [filename.ext]' ]在线[线]
通过正常提交表单上传文件并移动临时文件按预期工作 .
我的php.ini设置非常标准:
file_uploads = On
upload_tmp_dir = "[path\to\temp\directory]"
upload_max_filesize = 2M
max_file_uploads = 20
我的PHP也应该是非常标准的:
$fileField = 'target_file';
if(!(isset($_FILES) && is_array($_FILES) && isset($_FILES[$fileField]))) {
// No File Sent (Error Out)
}
$file = $_FILES[$fileField];
// Errors in transfer?
if(isset($file['error'])) {
$haltMessage = false;
switch($file['error']) {
/* Switchboard checking through all standard file upload errors. And, of course, ERR_OK */
}
if($haltMessage !== false) {
// An error occured! Error Out
}
}
// Check if the file was uploaded.
if(!is_uploaded_file($file['tmp_name'])) {
// No File Uploaded (Error Out)
}
if(/* File type checking.. */)) {
// Invalid file type (Error Out)
}
$uploadDir = 'path/to/permanent/dir';
$fileName = $file['name'];
$location = $uploadDir . DS . basename($fileName); // DS = '/'
$result = move_uploaded_file($file['tmp_name'], $location);
if($result) {
// Yes!
} else {
// Something did indeed go wrong.
// This block of code is ran after the warnings are issued.
}
所以这让我的JavaScript有点需要:
(function($) {
$(document).ready(function(){
var url = 'url/to/php/script.php',
input,
formdata;
// FormData support? (We have a fallback if not)
if(window.FormData != null && window.FileReader != null) {
input = document.getElementById('target_file');
formdata = new FormData(),
input.addEventListener('change', function(ev) {
var reader,
file;
if(this.files.length === 1) {
file = this.files[0];
if(!!file.type.match(/* File type matching */)) {
reader = new FileReader();
reader.onloadend = function (e) {
// Uploaded Handle
}
reader.onload = function() {
formdata.append('target_file', file);
$.ajax({
url : url,
type : "POST",
data : formdata,
processData: false,
contentType: false,
success : function(res) {
console.log(res);
}
});
}
reader.readAsDataURL(file);
} else {
// Invalid file type.
}
} else {
// No file / too many files (hack) selected.
}
}, false);
}
});
}(jQuery));
我正在使用FireFox 23.0.1,我在服务器上运行PHP 5.4.7 .
为长期问题道歉,但我不确定问题出在哪里 . 转储$ _FILES变量会显示一个充满预期文件信息的数组,包括tmp_name . 只有在我尝试移动临时文件时,此时才会出现任何错误迹象 .
如果您对此问题有任何帮助,我们将不胜感激!
1 回答
非常麻烦...... Link: