jquery+php+ajax显示上传进度的多图片上传并生成缩略图代码

发布时间：2020-12-15 23:36:00 所属栏目：百科来源：网络整理

导读：本例用到其他2个php class.upload.php和 functions.php还有css和js以及img文件完整实例代码点击此处。效果图如下：实现代码如下： JavaScript代码如下：代码如下: javascript代码如下：代码如下: 上面2个js都放在index.php里面 XML/HTML代码如下：代码

本例用到其他2个php class.upload.php和 functions.php还有css和js以及img文件

完整实例代码点击此处。

效果图如下：

实现代码如下：

JavaScript代码如下：

代码如下:

$(".side-pane").niceScroll({
cursorwidth: "8px",
cursoropacitymax: 0.3
});

$(".time").timeago();
});

javascript代码如下：

代码如下:

$('#upload_button').click(function() {
$('.side-pane').html('');
$('#upload_button').hide();
$('#pickfiles').hide();
$('#upload_info').show();
$('#upload_info').css("display","inherit");
uploader.start();

$('#filelist').block({
message: '

<div class="start-message">Upload in Progress

',
css: {
border: 'none',
backgroundColor: 'none'
},
overlayCSS: {
backgroundColor: '#fff',
opacity: '0',
cursor: 'wait'
}
});
});

var uploader = new plupload.Uploader({
runtimes : 'flash,html5',
browse_button : 'pickfiles',
container : 'uploader',
max_file_size : '10mb',
url : 'upload.php',
flash_swf_url : 'uploader/uploader.swf',
filters : [
{ title : "Image files",extensions : "jpg,jpeg,gif,png" }
]
});

uploader.bind('Init',function(up,params) {});
uploader.init();

uploader.bind('FilesAdded',files) {
/
@@ Show / hide various elements
/
$('.upload-message').hide();
$('.info-message').hide();
$('#upload_button').show();
$('#filelist_header').show();

$.each(files,function(i,file) {
$('#filelist').append(
'<div id="' + file.id + '" class="filecontainer">' +
'<div class="filename"> '+file.name + ''+
'<div class="filesize">' + plupload.formatSize(file.size) + ''+
'<div class="filestatus" id="status'+file.id+'">0%'+
'<div class="filedel"><a id="remove'+file.id+'" href="javascript:;">' +
'');

$('#remove_'+file.id).click(function(e) {
uploader.removeFile(file)
$('#'+file.id).hide('slow',function() { ('#'+file.id).remove(); });
});
});

up.refresh();
$('#filelist').animate({scrollTop: $('#filelist').attr("scrollHeight")},1500);
});

uploader.bind('UploadProgress',file) {
$('#status_' + file.id).html(file.percent + "%");
if(file.percent == 100) {
$('#' + file.id).block({
message: '',
opacity: '0.7',
cursor: 'wait'
}
});
}
$('#percent').width(uploader.total.percent+"%");
$('#upRate').text(Math.ceil(uploader.total.bytesPerSec/1024)+" kb/sec");
});

uploader.bind('FileUploaded',file,response) {
var input = $("#uploaded_photos");
var data = response.response;
var details = data.split(',');
if(details[0] == 'success') {
var photo_html = '<div class="padding-10 hm-photo clearfix"><a href="../upload/source/'+details[4]+'" target="_blank"><img src="../upload/small/'+details[4]+'"><p class="small-text light-text">'+details[1]+'

<abbr class="time small-text" title="'+details[2]+'">';
input.val(input.val() + details[1] + ":");
} else {
var photo_html = '<div class="clearfix">'+details[1]+'';
}
$('.side-pane').prepend(photo_html);
$('.time').timeago();
});

uploader.bind('UploadComplete',files) {
$('#upload_info').hide();
$('#filelist').unblock({
onUnblock: function () {
$('#filelist_header').hide();
$('#filelist').html('<div style="margin-top: 180px; text-align: center;">

ok

All photos have been uploaded.');
}
});
});

// ]]>

上面2个js都放在index.php里面

XML/HTML代码如下：

代码如下:

<div class="action-btns">
<a id="pickfiles" class="login-button btn">Select files to upload
<a href="javascript:;" id="upload_button" class="login-button upload hide">Upload

upload.php页面代码如下：

代码如下:

/
@@ This is the file upload class which does all the uploading work.
/
include('class.upload.php');

if(isset($_FILES["file"])) {
/
@@ Generating unique name for the photo.
/
$time = time();
$rand_1 = rand(999,999999);
$rand_2 = rand(999999,999999999);
$rand_3 = rand();
$uniquevalue = $time.''.$rand1.''.$rand2.''.$rand_3;

/
@@ Folder creation for each and every day. This ensures performance even with millions of images.
/
$folder = date('zY');
if(substr($folder,0) == 0) {
$folder = '367'.date('Y');
}

/
@@ This folder is for the source image files.
/
$pfolder = '../upload/source/';
if(!is_dir($pfolder)) {
mkdir($pfolder,0755);
}

/
@@ This folder is for the image files with 120x120 dimensions.
/
$tfolder = '../upload/small/';
if(!is_dir($tfolder)) {
mkdir($tfolder,0755);
}

/
@@ Assigning the upload file to the upload class for all the processing.
/
$handle = new Upload($_FILES["file"]);
if($handle->uploaded) {
$extension = $handle->file_src_name_ext;
$mime = $handle->file_src_mime;

if(($mime == 'image/gif') || ($mime == 'image/jpg') || ($mime == 'image/png') || ($mime == 'image/bmp') || ($mime == 'image/pjpeg') | ($mime == 'image/jpeg')) {
/
@@ Check if the uploaded filetype is an image or not.
/
if(($extension == 'gif') || ($extension == 'jpg') || ($extension == 'jpeg') || ($extension == 'png') || ($extension == 'bmp') || ($extension == 'pjpeg')) {
if($handle->image_src_x > 500) {
/
@@ Check if the filesize is smaller than 10 MB. 10 MB = 10485760 bytes.
/
if($handle->file_src_size < 10485760) {
/
@@ Getting the actual file name (with and without extension) and sanitizing it for inserting in the database.
/
$real_name = clean_input($handle->file_src_name);
$body_name = clean_input($handle->file_src_name_body);

$handle->file_new_name_body = $uniquevalue.''.$body_name;
$handle->Process($pfolder);

$handle->image_resize = true;
$handle->image_ratio_crop = 'T';
$handle->image_y = 120;
$handle->image_x = 120;
$handle->file_new_name_body = $uniquevalue.''.$body_name;
$handle->Process($tfolder);

if($handle->processed) {
$actual_name = $handle->file_dst_name;
$size = ceil($handle->file_src_size / 1024);

Sending photo details back to the uploader.

$date = date("c",$time);

Reducing the length of real name if it exceeds 50 characters.

if(strlen($real_name) > 50) {
$real_name = substr($real_name,50).'..';
}
echo 'success,'.$real_name.','.$date.','.$folder.','.$actual_name;
} else {
echo 'error,<div class="alert alert-error">

Upload Error

There was an error uploading the photo.

';
}
} else {
echo 'error,<div class="alert alert-error">

Upload Error

The photo is bigger than the allowed upload size of

10MB

.';
}
} else {
echo 'error,<div class="alert alert-error">

Upload Error

You are trying to upload a photo with smaller dimensions.';
}
} else {
echo 'error,<div class="alert alert-error">

Upload Error

Only photo uploads are allowed.';
}
} else {
echo 'error,<div class="alert alert-error">

Upload Error

An upload error occured.';
}
/
@@ Return the json response to the script.
/
$handle->Clean();
} else {
echo 'error,<div class="alert alert-error">

Upload Error

An upload error occured.';
}

希望本文所述对大家的PHP+jQuery程序设计有所帮助。

（编辑：李大同）

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