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PHP and AjaxForm implement asynchronous file upload with progress bar
PHP and AjaxForm implement asynchronous file upload with progress bar
This article focuses on introducing PHP+AjaxForm asynchronous file uploading example code with progress bar. Before using the ajaxForm method, you first need to install the form.js plug-in. It can be found online. Friends who are interested can take a look. I hope it can Help everyone.
Before using the ajaxForm method, you first need to install the form.js plug-in, which is available online;
First, let’s talk about usage. AjaxForm can receive 0 or 1 parameters. This parameter It can be a variable, an object or a callback function. This object mainly has the following parameters:
var object= {
url:url, //form提交数据的地址
type:type, //form提交的方式(method:post/get)
target:target, //服务器返回的响应数据显示的元素(Id)号
beforeSerialize:function(){} //序列化提交数据之前的回调函数
beforeSubmit:function(){}, //提交前执行的回调函数
success:function(){}, //提交成功后执行的回调函数
error:function(){}, //提交失败执行的函数
dataType:null, //服务器返回数据类型
clearForm:true, //提交成功后是否清空表单中的字段值
restForm:true, //提交成功后是否重置表单中的字段值，即恢复到页面加载时的状态
timeout:6000 //设置请求时间，超过该时间后，自动退出请求，单位(毫秒)。
}
ajaxForm js的code
$(function(){
$("form").ajaxForm(object)；
})Instance specific code code
htmlcode
<!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="X-UA-Compatible" content="IE=7" />
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="ROBOTS" content="NOODP">
<title>PHP+Ajax异步带进度条上传文件实例_php</title>
<meta http-equiv="X-UA-Compatible" content="IE=EDGE" />
<meta name="keywords" content="php,ajax异步上传文件,ajax,异步加载,进度条,php,ajax上传进度条" />
<meta name="description" content="这篇文章主要介绍了PHP+Ajax异步带进度条上传文件实例代码。" />
<!--默认的进度条样式文件
添加一个带有 class .progress 的 <p>。
接着，在上面的 <p> 内，添加一个带有 class .progress-bar 的空的 <p>。
添加一个带有百分比表示的宽度的 style 属性，例如 style="60%"; 表示进度条在 60% 的位置
-->
<link rel="stylesheet" href="public/css/bootstrap.min.css" rel="external nofollow" >
<script src="public/js/jquery.min.js"></script>
<script src="public/js/jquery.form.js"></script> <!--ajaxForm 提交form表单数据无刷新处理数据-->
</head>
<body>
<p class="uk-container uk-container-center">
<p class="pk-system-messages"></p>
<h1 class="uk-h2 uk-text-center" style="margin-top:-100px;">文件上传</h1>
<p class="pk-system-messages"></p>
<p class="container-main">
<h1>文件上传</h1>
<p>这里只是一个ajax+php+ajaxForm上传文件word文档例子</p>
<form id='myupload' action='upload.php' method='post' enctype='multipart/form-data'>
<label for="file">选择上传文件名:</label>
<input type="file" name="mypic" id="file"><br>
<input type="submit" name="upload" class="btn btn-success" value="upload">
<input type='text' name="list" value="555"/>
</form>
<p class="progress">
<p class="progress-bar progress-bar-success progress-bar-striped" role="progressbar" aria-valuenow="45" aria-valuemin="0" aria-valuemax="100" style="width: 0%;color:red;">
<span class="sr-only">10% Complete</span>
</p>
</p>
<p class="files"></p>
<p class="showimg"></p>
</p>
</p>
</body>
<script type="text/javascript">
$(function () {
$("#myupload").ajaxForm({
dataType:'json',
beforeSend:function(){
$(".progress").show();
},
uploadProgress:function(event,position,total,percentComplete){
var percentVal = percentComplete + '%';
$(".progress-bar").width(percentComplete + '%');
$(".progress-bar").html(percentVal);
$(".sr-only").html(percentComplete + '%');
},
success:function(data){
$(".progress").hide();
if(data.error == "empty_name"){
alert("文件上传非法,上传失败!");
exit();
};
if(data.error == "large"){
alert("图片上传不能大于2M,上传失败!");
exit();
};
if(data.error == "format"){
alert("图片格式错误,上传失败");
exit();
};
//$(".files").html("<b>"+data.name+"("+data.size+"k)</b> <span class='delimg' rel='"+data.pic+"'>删除</span>");
$(".files").html("文件名: "+data.name+"<span class='delimg' rel='"+data.pic+"'> del </span>大小："+data.size);
var img = "files/"+data.pic;
$(".showimg").html("<img src='"+img+"'>");
alert("上传成功!");
},
error:function(){
alert("上传失败");
}
});
$(".progress").hide();
});
</script>
</html>php upload upload class upload.class.php file
<?php
date_default_timezone_set("PRC"); //设置时间区域
//上传类
class upload{
protected $file_path = "files"; //当前files存储文件夹
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" )) {
//这里只是判断上传word文档可以自己添加
}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();
}
}
}
?>ajax submit php processing file upload.php
<?php
include("upload.class.php");
$up_obj = new upload();
//获取上传文件名
$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){
$result_type = $up_obj->check_type($get_fileType);//检查文件类型
if($result_type){
$result_size = $up_obj->check_size($get_fileSize);//检查文件大小
if($result_size){
$pics = $up_obj->save_file($get_fileType,$get_TmpFiles); //文件上传保存
$size = round($get_fileSize/1024,2);
$arr = array(
'name' => $get_fileName,
'pic' => $pics,
'size'=> $size,
'error' => 2,
'list' =>$_POST['list']
);
if($pics){ //检查文件上传状态
echo json_encode($arr);
}
}
}
}
?>Related recommendations:
PHP AjaxForm Submit image upload and display image source code_php example
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