前端引入文件
Ajax进度条异步处理
前端上传HTML
文件上传
Ajax Image Uploader
A simple tutorial to explain image uploading using jquery ajax and php
0% Complete
PHP文件上传类
class upload{
protected $file_path = "files"; //当前files存储文件夹
#protected $file_size = 1024000;
protected $file_size = 5120000; //5M 用户上传
//检测文件是否为空
public function check_file($get_file)
{
if (empty($get_file))
{
$type = "check_file";
$arr = array('error'=>'empty_name','type'=>$type);
echo json_encode($arr);
exit();
}
return true;
}
//检测文件类型
public function check_type($get_type)
{
if (( $get_type == ".docx" ) || ( $get_type == ".doc" )) {
#$types = $get_type;
}else{
$type = "check_type";
$arr = array('error'=>'format','type'=>$type);
echo json_encode($arr);
exit();
}
return true;
}
//检测文件大小
public function check_size($get_file)
{
if ( $get_file != "" ) {
if ( $get_file > $this->file_size ) {
$arr = array('error'=>'large');
echo json_encode($arr);
exit();
}
}else{
return false;
exit();
}
return true;
}
//文件保存
public function save_file($file_type,$file_tmp_name)
{
$rand = rand(1000, 9999);
$pics = date("YmdHis") . $rand . $file_type;
$path = $this->file_path."/".$pics;
$result = move_uploaded_file($file_tmp_name, $path);
if($result){
return $pics;
}else{
return false;
exit();
}
#return $pics;
}
}
PHP文件上传处理
include("upload.class.php");
$up_obj = new upload();
$get_fileName = $_FILES['mypic']['name'];
$get_fileSize = $_FILES['mypic']['size'];
$get_TmpFiles = $_FILES['mypic']['tmp_name'];
$get_fileType = strstr($get_fileName, '.');
$check_result = $up_obj->check_file($get_fileName);
if($check_result){
//检查文件类型
$result_type = $up_obj->check_type($get_fileType);
//检查文件大小
if($result_type){
$result_size = $up_obj->check_size($get_fileSize);
if($result_size){
//文件上传保存
$pics = $up_obj->save_file($get_fileType,$get_TmpFiles);
$size = round($get_fileSize/1024,2);
$arr = array(
'name' => $get_fileName,
'pic' => $pics,
'size'=> $size,
'error' => 2
);
//检查文件上传状态
if($pics){
echo json_encode($arr);
}
}
}
}
文件上传效果如图：
