最新的php 文件上传模型，支持多文件上传
程序员文章站
2023-11-28 19:06:10
复制代码 代码如下:
<?php
class uploadmodel
{
protected $keys;
protected $err = array();
protected $target;
protected $exts;
protected $maxsize;
protected $randname;
protected $files = array();
/**
* 初始化变量
*/
public function __construct()
{
$this->exts = array('jpeg','jpg','gif','png','zip','rar');
$this->maxsize = 1024*1024*2;
$this->target = dirname(__file__) . '/upload/';
$this->randname = true;
$this->keys = $this->getkeys();
}
/**
* 获取 file 的名称
*/
protected function getkeys()
{
$keys = array_keys($_files);
return $keys;
}
/**
* 设置不同类型的变量
*/
public function __set($name, $value)
{
$property = array('target','exts','maxsize','randname');
if(!in_array($name, $property)) return false;
switch(strval($name))
{
case 'target':
$this->$name = configure::read('app_path') . $value;
break;
case 'exts':
$this->$name = explode(',', $value);
break;
case 'randname':
if($value === true || $value == 1)
{
$this->$name = true;
}
else {
$this->$name = false;
}
break;
default:
$this->$name = $value;
}
}
/**
* 移动上传的文件到指定的目录
* @param $filename 移动单个文件名称的时候，对上传的文件重新命名
*/
public function save($filename)
{
$this->err = array();
$this->files = array();
if(!file_exists($this->target)) {
mkdir($this->target);
chmod($this->target, 0777);
}
foreach($this->keys as $key)
{
if(is_array($_files[$key]['name']))
{
$count = count($_files[$key]['name']);
for($i=0; $i<$count; $i++)
{
$keys = array_keys($_files[$key]);
foreach($keys as $item)
{
$file[$item] = $_files[$key][$item][$i];
}
$this->upload($file, $filename);
}
return (count($this->err) > 0)? false:true;
}
else {
return $this->upload($_file[$key], $filename);
}
}
}
/** 内部处理上传文件的过程 */
protected function upload($file, $filename)
{
if(!is_uploaded_file($file['tmp_name'])) return false;
if(!$this->checkext($file)) return false;
if(!$this->checksize($file)) return false;
if($this->randname)
{
$newfilename = $this->target . date('ymdhis', time()) . rand(0,9) . '.' . $this->getext($file['name']);
}
elseif(emptyempty($filename))
{
$newfilename = $this->target . '/' . $file['name'];
}
else {
$newfilename = $this->target . '/' . $filename;
}
$result = move_uploaded_file($file['tmp_name'], $newfilename);
if(!$result)
{
return false;
}
else {
$this->files[] = str_replace($this->target, $newfilename);
return true;
}
}
/**
* 是否是可上传的文件类型
* @param $file 文件对象
*/
public function checkext($file)
{
if(!in_array($this->getext($file['name']), $this->exts))
{
$this->err[] = $file['name'].':ext';
return false;
}
else {
return true;
}
}
/**
* 获取文件后缀名
*/
public function getext($filename)
{
$pos = strrpos($filename, '.')+1;
return substr($filename, $pos);
}
/**
* 检查文件大小是否合法
*/
public function checksize($file)
{
if($size > $this->maxsize)
{
$this->err[] = $file['name'].':max';
return false;
}
else {
return true;
}
}
/**
* 取得已经上传的文件名称
*/
public function getfiles()
{
return $this->files;
}
}
使用实例：
include 'uploaded.model.php';
$u = new uploadmodel();
$u->target = '/tmp/';
$u->exts = 'jpg,gif';
$u->maxsize = 1024*275; //275kb
$u->save();
$files = $u->getfiles();
print_r($files);
include 'uploaded.model.php';
$u = new uploadmodel();
$u->target = '/tmp/';
$u->exts = 'jpg,gif';
$u->maxsize = 1024*275; //275kb
$u->save();
$files = $u->getfiles();
print_r($files);
在 mayfish 里的使用实例：
public function up()
{
$u = m('sys', 'upload');
$u->target = '/tmp/';
$u->exts = 'jpg,gif';
$u->maxsize = 1024*275; //275kb
$u->save();
header('location:/?a=upload');
}
public function up()
{
$u = m('sys', 'upload');
$u->target = '/tmp/';
$u->exts = 'jpg,gif';
$u->maxsize = 1024*275; //275kb
$u->save();
header('location:/?a=upload');
}
前台代码：
<!doctype html public "-//w3c//dtd xhtml 1.0 transitional//en" "http://www.w3.org/tr/xhtml1/dtd/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
</head>
<body>
<form action="/?a=up" method="post" enctype="multipart/form-data">
<!-- 以下两上file类型控制的name属性可以任意设置，系统会自己取出input 的名称 -->
<input name="files[]" type="file" size="30" />
<input name="files[]" type="file" size="30" />
<input type="submit" value="开始上传" />
</form>
</body>
</html>
复制代码 代码如下:
<?php
class uploadmodel
{
protected $keys;
protected $err = array();
protected $target;
protected $exts;
protected $maxsize;
protected $randname;
protected $files = array();
/**
* 初始化变量
*/
public function __construct()
{
$this->exts = array('jpeg','jpg','gif','png','zip','rar');
$this->maxsize = 1024*1024*2;
$this->target = dirname(__file__) . '/upload/';
$this->randname = true;
$this->keys = $this->getkeys();
}
/**
* 获取 file 的名称
*/
protected function getkeys()
{
$keys = array_keys($_files);
return $keys;
}
/**
* 设置不同类型的变量
*/
public function __set($name, $value)
{
$property = array('target','exts','maxsize','randname');
if(!in_array($name, $property)) return false;
switch(strval($name))
{
case 'target':
$this->$name = configure::read('app_path') . $value;
break;
case 'exts':
$this->$name = explode(',', $value);
break;
case 'randname':
if($value === true || $value == 1)
{
$this->$name = true;
}
else {
$this->$name = false;
}
break;
default:
$this->$name = $value;
}
}
/**
* 移动上传的文件到指定的目录
* @param $filename 移动单个文件名称的时候，对上传的文件重新命名
*/
public function save($filename)
{
$this->err = array();
$this->files = array();
if(!file_exists($this->target)) {
mkdir($this->target);
chmod($this->target, 0777);
}
foreach($this->keys as $key)
{
if(is_array($_files[$key]['name']))
{
$count = count($_files[$key]['name']);
for($i=0; $i<$count; $i++)
{
$keys = array_keys($_files[$key]);
foreach($keys as $item)
{
$file[$item] = $_files[$key][$item][$i];
}
$this->upload($file, $filename);
}
return (count($this->err) > 0)? false:true;
}
else {
return $this->upload($_file[$key], $filename);
}
}
}
/** 内部处理上传文件的过程 */
protected function upload($file, $filename)
{
if(!is_uploaded_file($file['tmp_name'])) return false;
if(!$this->checkext($file)) return false;
if(!$this->checksize($file)) return false;
if($this->randname)
{
$newfilename = $this->target . date('ymdhis', time()) . rand(0,9) . '.' . $this->getext($file['name']);
}
elseif(emptyempty($filename))
{
$newfilename = $this->target . '/' . $file['name'];
}
else {
$newfilename = $this->target . '/' . $filename;
}
$result = move_uploaded_file($file['tmp_name'], $newfilename);
if(!$result)
{
return false;
}
else {
$this->files[] = str_replace($this->target, $newfilename);
return true;
}
}
/**
* 是否是可上传的文件类型
* @param $file 文件对象
*/
public function checkext($file)
{
if(!in_array($this->getext($file['name']), $this->exts))
{
$this->err[] = $file['name'].':ext';
return false;
}
else {
return true;
}
}
/**
* 获取文件后缀名
*/
public function getext($filename)
{
$pos = strrpos($filename, '.')+1;
return substr($filename, $pos);
}
/**
* 检查文件大小是否合法
*/
public function checksize($file)
{
if($size > $this->maxsize)
{
$this->err[] = $file['name'].':max';
return false;
}
else {
return true;
}
}
/**
* 取得已经上传的文件名称
*/
public function getfiles()
{
return $this->files;
}
}
使用实例：
复制代码 代码如下:
include 'uploaded.model.php';
$u = new uploadmodel();
$u->target = '/tmp/';
$u->exts = 'jpg,gif';
$u->maxsize = 1024*275; //275kb
$u->save();
$files = $u->getfiles();
print_r($files);
include 'uploaded.model.php';
$u = new uploadmodel();
$u->target = '/tmp/';
$u->exts = 'jpg,gif';
$u->maxsize = 1024*275; //275kb
$u->save();
$files = $u->getfiles();
print_r($files);
在 mayfish 里的使用实例：
复制代码 代码如下:
public function up()
{
$u = m('sys', 'upload');
$u->target = '/tmp/';
$u->exts = 'jpg,gif';
$u->maxsize = 1024*275; //275kb
$u->save();
header('location:/?a=upload');
}
public function up()
{
$u = m('sys', 'upload');
$u->target = '/tmp/';
$u->exts = 'jpg,gif';
$u->maxsize = 1024*275; //275kb
$u->save();
header('location:/?a=upload');
}
前台代码：
复制代码 代码如下:
<!doctype html public "-//w3c//dtd xhtml 1.0 transitional//en" "http://www.w3.org/tr/xhtml1/dtd/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
</head>
<body>
<form action="/?a=up" method="post" enctype="multipart/form-data">
<!-- 以下两上file类型控制的name属性可以任意设置，系统会自己取出input 的名称 -->
<input name="files[]" type="file" size="30" />
<input name="files[]" type="file" size="30" />
<input type="submit" value="开始上传" />
</form>
</body>
</html>
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