简易php 文件(限制jpg)上传代码

admin · 发表于 2014-1-6 15:03:16

<?php
/* 图片上传类仅限JPG格式图片 */
class uploadFile
{
var $inputName; //input名称
var $fileName; //文件命名
var $fileProperty; //文件属性
var $fileSize=2097152; //文件大小限制,2M
var $filePath="upload/"; //文件存储路径
function uploadFile($inputName){
$this->inputName=$inputName;
$this->getName(); //取得新的名称
$this->fileSave();
}
//随机名称
private function getName(){
$this->fileName=date("YmdHms").rand(0,9).$this->getProperty();
}
//文件属性,返回后辍名
private function getProperty(){
if($_FILES[$this->inputName]["type"]=="image/pjpeg"||$_FILES[$this->inputName]["type"]=="image/jpeg"){
return ".jpg";
}else{
exit("文件格式不对");
}
}
//文件存储
private function fileSave(){
if($_FILES[$this->inputName]["size"]>$this->fileSize){
exit("文件太大,最大限制为".$this->fileSize."字节");
}
if(!file_exists($this->filePath)){
mkdir($this->filePath); //如果文件存储目录不存在,则建立;
}
move_uploaded_file($_FILES[$this->inputName]["tmp_name"],
$this->filePath.$this->fileName);
}
}
if($_GET['action']=="fileSave"){
$f=new uploadFile("file");
echo '<input name="textfield" type="text" size="30" value="'.$f->filePath.$f->fileName.'" /> 上传成功! <a href="'.$f->filePath.$f->fileName.'">浏览</a>';
}else{
echo '<form action="?action=fileSave" method="post" enctype="multipart/form-data" name="form1" id="form1">
<input type="file" name="file" size="30" />
<input type="submit" name="Submit" value="提交" />
</form>';
}
?>

复制代码

admin · 发表于 2014-1-6 15:11:03

PHP文件上传
1、upload.php

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>ddd</title>
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
</head>
<body>
<form enctype="multipart/form-data" action="uploadProcess.php" method="post" >
<table>
<tr><td>请填写用户名</td><td><input type="text" name="username"></td></tr>
<tr><td>请简单介绍文件</td><td><textarea rows="7" cols="50" name="fileintro" style="width:300px;"></textarea></td></tr>
<tr><td>请上传你的文件</td><td><input type="file" name="myfile"></td></tr>
<tr><td colspan="2"><input type="submit" value="上传"><td></tr>
</table>
</form>
</body>
</html>

复制代码

2、uploadProcess.php

<?php
//接收
$username=$_POST['username'];
$fileintro=$_POST['fileintro'];
//echo $username.$fileintro;
//获取文件信息
/* echo "<pre>";
print_r($_FILES);
echo "</pre>";
*/
//获取文件的大小
$file_size=$_FILES['myfile']['size'];
if($file_size>2*1024*1024){
echo "<script type='text/javascript'>window.alert('文件不能大于2M')</script>";
exit();
}
//获取文件类型
$file_type=$_FILES['myfile']['type'];
if($file_type!="image/jpeg" && $file_type!="image/pjpeg"){
echo "文件类型只能是 jpg 格式";
exit();
}
//判断上传是否OK
if(is_uploaded_file($_FILES['myfile']['tmp_name'])){
//得到上传的文件转存到你希望的目录
$upload_file=$_FILES['myfile']['tmp_name'];
//防止图片覆盖问题，为每个用户建立一个文件夹
$user_path=$_SERVER['DOCUMENT_ROOT']."/file/up/".$username;
if(!file_exists($user_path)){
mkdir ($user_path);
}
//$move_to_file=$user_path."/".$_FILES['myfile']['name'];
//防止用户上传用户名相同的问题
$file_true_name=$_FILES['myfile']['name'];
$move_to_file=$user_path."/".time().rand(1,1000).substr($file_true_name,strripos($file_true_name,"."));
//echo $upload_file.$move_to_file;
//中文要转码
if(move_uploaded_file($upload_file,iconv("utf-8","gb2312","$move_to_file"))){
echo $_FILES['myfile']['name']."上传成功";
}else{
echo "上传失败";
}
}else{
echo "上传失败";
}
?>

复制代码

3、封装：

<?php
class Upload{
public $upload_name; //上传文件名
public $upload_tmp_path; //上传文件保存到服务器的temp路径
public $file_size;
public $file_type;
public $file_save_path;
function __construct(){
$this->upload_name=$_FILES['myfile']['name'];
$this->upload_tmp_path=$_FILES['myfile']['tmp_name'];
$this->file_size=$_FILES['myfile']['size'];
$this->file_type=$_FILES['myfile']['type'];
$this->allow_file_type = array('jpeg','jpg','png','gif','bmp','doc','zip','rar','txt','wps','xlsx','ppt');
$this->file_save_path=$_SERVER['DOCUMENT_ROOT']."/file/up/";
}
public function upload_file($username){
//判断文件大小
if($this->file_size>2*1024*1024){
echo "<script type='text/javascript'>window.alert('文件不能大于2M')</script>";
exit();
}
//获取文件类型
/* if($this->file_type!="image/jpeg" && $this->file_type!="image/pjpeg"){
echo "文件类型只能是 jpg 格式";
exit();
}
*/ //获取文件的扩展名
$file_type=$this->getFileExt($this->upload_name);
if(!in_array($file_type,$this->allow_file_type)){
echo "上传文件类型格式错误";
exit();
}
//判断上传是否OK
if(is_uploaded_file($this->upload_tmp_path)){
//防止图片覆盖问题，为每个用户建立一个文件夹
$user_path=$this->file_save_path.$username;
if(!file_exists($user_path)){
mkdir ($user_path);
}
//$move_to_file=$user_path."/".$_FILES['myfile']['name'];
//防止用户上传用户名相同的问题
//$file_true_name=$_FILES['myfile']['name'];
$move_to_file=$user_path."/".time().rand(1,1000).substr($this->upload_name,strripos($this->upload_name,"."));
//echo $upload_file.$move_to_file;
//中文要转码
if(move_uploaded_file($this->upload_tmp_path,iconv("utf-8","gb2312","$move_to_file"))){
echo $this->upload_name."上传成功";
}else{
echo "上传失败";
}
}else{
echo "上传失败";
}
}
//获取文件的扩展名
public function getFileExt($filename){
$fileExt=pathinfo($filename);
return $fileExt["extension"];
}
}
?>

复制代码

账号		自动登录	找回密码
密码			注册

简易php 文件(限制jpg)上传代码

相关帖子

PHP文件综合编程-文件上传

浏览过的版块