php 文件上传代码(限制jpg文件)
复制代码 代码如下:
/* 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 ' 上传成功! 浏览';
}else{
echo '
}
?>

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