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upload init
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@jnxyx
jnxyx committed Jul 29, 2016
1 parent ef1a477 commit 34feccd
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242 changes: 242 additions & 0 deletions ex.php
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<?php
/**
file: fileupload.class.php 文件上传类FileUpload
本类的实例对象用于处理上传文件，可以上传一个文件，也可同时处理多个文件上传
*/
class FileUpload {
private $path = "./uploads"; //上传文件保存的路径
private $allowtype = array('jpg','gif','png'); //设置限制上传文件的类型
private $maxsize = 1000000; //限制文件上传大小（字节）
private $israndname = true; //设置是否随机重命名文件， false不随机

private $originName; //源文件名
private $tmpFileName; //临时文件名
private $fileType; //文件类型(文件后缀)
private $fileSize; //文件大小
private $newFileName; //新文件名
private $errorNum = 0; //错误号
private $errorMess=""; //错误报告消息

/**
* 用于设置成员属性（$path, $allowtype,$maxsize, $israndname）
* 可以通过连贯操作一次设置多个属性值
*@param string $key 成员属性名(不区分大小写)
*@param mixed $val 为成员属性设置的值
*@return object 返回自己对象$this，可以用于连贯操作
*/
function set($key, $val){
$key = strtolower($key);
if( array_key_exists( $key, get_class_vars(get_class($this) ) ) ){
$this->setOption($key, $val);
}
return $this;
}

/**
* 调用该方法上传文件
* @param string $fileFile 上传文件的表单名称
* @return bool 如果上传成功返回数true
*/

function upload($fileField="files_0") {
$return = true;
/* 检查文件路径是滞合法 */
if( !$this->checkFilePath() ) {
$this->errorMess = $this->getError();
return false;
}
// var_dump($_FILES['files_0']['tmp_name']);
/* 将文件上传的信息取出赋给变量 */
$name = $_FILES[$fileField]['name'];
$tmp_name = $_FILES[$fileField]['tmp_name'];
$size = $_FILES[$fileField]['size'];
$error = $_FILES[$fileField]['error'];

/* 如果是多个文件上传则$file["name"]会是一个数组 */
if(is_Array($name)){
$errors=array();
/*多个文件上传则循环处理 ， 这个循环只有检查上传文件的作用，并没有真正上传 */
for($i = 0; $i < count($name); $i++){
/*设置文件信息 */
if($this->setFiles($name[$i],$tmp_name[$i],$size[$i],$error[$i] )) {
if(!$this->checkFileSize() || !$this->checkFileType()){
$errors[] = $this->getError();
$return=false;
}
}else{
$errors[] = $this->getError();
$return=false;
}
/* 如果有问题，则重新初使化属性 */
if(!$return)
$this->setFiles();
}

if($return){
/* 存放所有上传后文件名的变量数组 */
$fileNames = array();
/* 如果上传的多个文件都是合法的，则通过销魂循环向服务器上传文件 */
for($i = 0; $i < count($name); $i++){
if($this->setFiles($name[$i], $tmp_name[$i], $size[$i], $error[$i] )) {
$this->setNewFileName();
if(!$this->copyFile()){
$errors[] = $this->getError();
$return = false;
}
$fileNames[] = $this->newFileName;
}
}
$this->newFileName = $fileNames;
}
$this->errorMess = $errors;
return $return;
/*上传单个文件处理方法*/
} else {
/* 设置文件信息 */
if($this->setFiles($name,$tmp_name,$size,$error)) {
/* 上传之前先检查一下大小和类型 */
if($this->checkFileSize() && $this->checkFileType()){
/* 为上传文件设置新文件名 */
$this->setNewFileName();
/* 上传文件 返回0为成功， 小于0都为错误 */
if($this->copyFile()){
return true;
}else{
$return=false;
}
}else{
$return=false;
}
} else {
$return=false;
}
//如果$return为false, 则出错，将错误信息保存在属性errorMess中
if(!$return)
$this->errorMess=$this->getError();

return $return;
}
}

/**
* 获取上传后的文件名称
* @param void 没有参数
* @return string 上传后，新文件的名称， 如果是多文件上传返回数组
*/
public function getFileName(){
return $this->newFileName;
}

/**
* 上传失败后，调用该方法则返回，上传出错信息
* @param void 没有参数
* @return string 返回上传文件出错的信息报告，如果是多文件上传返回数组
*/
public function getErrorMsg(){
return $this->errorMess;
}

/* 设置上传出错信息 */
private function getError() {
$str = "上传文件<font color='red'>{$this->originName}</font>时出错 : ";
switch ($this->errorNum) {
case 4: $str .= "没有文件被上传"; break;
case 3: $str .= "文件只有部分被上传"; break;
case 2: $str .= "上传文件的大小超过了HTML表单中MAX_FILE_SIZE选项指定的值"; break;
case 1: $str .= "上传的文件超过了php.ini中upload_max_filesize选项限制的值"; break;
case -1: $str .= "未允许类型"; break;
case -2: $str .= "文件过大,上传的文件不能超过{$this->maxsize}个字节"; break;
case -3: $str .= "上传失败"; break;
case -4: $str .= "建立存放上传文件目录失败，请重新指定上传目录"; break;
case -5: $str .= "必须指定上传文件的路径"; break;
default: $str .= "未知错误";
}
return $str.'<br>';
}

/* 设置和$_FILES有关的内容 */
private function setFiles($name="", $tmp_name="", $size=0, $error=0) {
$this->setOption('errorNum', $error);
if($error)
return false;
$this->setOption('originName', $name);
$this->setOption('tmpFileName',$tmp_name);
$aryStr = explode(".", $name);
$this->setOption('fileType', strtolower($aryStr[count($aryStr)-1]));
$this->setOption('fileSize', $size);
return true;
}

/* 为单个成员属性设置值 */
private function setOption($key, $val) {
$this->$key = $val;
}

/* 设置上传后的文件名称 */
private function setNewFileName() {
if ($this->israndname) {
$this->setOption('newFileName', $this->proRandName());
} else{
$this->setOption('newFileName', $this->originName);
}
}

/* 检查上传的文件是否是合法的类型 */
private function checkFileType() {
if (in_array(strtolower($this->fileType), $this->allowtype)) {
return true;
}else {
$this->setOption('errorNum', -1);
return false;
}
}

/* 检查上传的文件是否是允许的大小 */
private function checkFileSize() {
if ($this->fileSize > $this->maxsize) {
$this->setOption('errorNum', -2);
return false;
}else{
return true;
}
}

/* 检查是否有存放上传文件的目录 */
private function checkFilePath() {
if(empty($this->path)){
$this->setOption('errorNum', -5);
return false;
}
if (!file_exists($this->path) || !is_writable($this->path)) {
if (!@mkdir($this->path, 0755)) {
$this->setOption('errorNum', -4);
return false;
}
}
return true;
}

/* 设置随机文件名 */
private function proRandName() {
$fileName = date('YmdHis')."_".rand(100,999);
return $fileName.'.'.$this->fileType;
}

/* 复制上传文件到指定的位置 */
private function copyFile() {
if(!$this->errorNum) {
$path = rtrim($this->path, '/').'/';
$path .= $this->newFileName;
var_dump($this->tmpFileName);
var_dump($path);
if (@move_uploaded_file($this->tmpFileName, $path)) {
return true;
}else{
$this->setOption('errorNum', -3);
return false;
}
} else {
return false;
}
}
}
12 changes: 12 additions & 0 deletions index.html
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<!DOCTYPE html>
<html>
<head>
<title>首页---MY</title>
</head>
<body>
这是首页
</body>
<script type="text/javascript">
window.location.href = '/myUpload.html';
</script>
</html>
96 changes: 96 additions & 0 deletions myUpload.html
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<!DOCTYPE html>
<html>

<head>
<meta charset="utf-8">
<title>myUpload</title>
<style type="text/css">
a {
display: inline-block;
width: 100px;
height: 100px;
background: #f9cccc;
border-radius: 5px;
position: relative;
overflow: hidden;
cursor: pointer;
}

a:hover {
background: #f3d6d6;
}

a input[type="file"] {
position: absolute;
right: 0;
top: 0;
/*width: 99px;
height: 99px;*/
font-size: 99px;
opacity: 0;
outline: none;
filter: alpha(opacity=0);
}
.upload-drop{
width: 500px;
height: 100px;
background-color: #f9cccc;
}
</style>
</head>

<body>
<div>
<a href="">
<input type="file" id="myUpload" name="myUpload" value=''>
</a>
<a href="">
<input type="file" id="myUpload01" name="myUpload01" value=''>
</a>
<div class="upload-drop">

</div>
</div>
</body>
<script type="text/javascript" src="myUpload.js"></script>
<script type="text/javascript">
document.getElementById('myUpload').onchange = function() {

myUpload({
element: document.getElementById('myUpload'),
url: '/myUpload.php/upload',
success: function(results) {
console.log(results);
},
error: function(results) {
console.log(results);
},
progress: function(results) {
console.log(results);
}
});
}
document.getElementById('myUpload').onclose = function() {
console.log('onclose');
}
document.getElementById('myUpload').oncancel = function() {
console.log('oncancel');
}
document.getElementById('myUpload').onblur = function() {
console.log('onblur');
}
document.getElementsByClassName('upload-drop')[0].ondragover = function(e){
e.preventDefault();
// console.log(arguments);
}
document.getElementsByClassName('upload-drop')[0].ondragleave = function(e){
e.preventDefault();
console.log(arguments);
}
document.getElementsByClassName('upload-drop')[0].ondrop = function(e){
e.preventDefault();
console.log(e.dataTransfer.files[0].name);
}
</script>

</html>
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