ajax php多文件上传代码
发布:smiling 来源: PHP粉丝网 添加日期:2014-09-08 21:42:02 浏览: 评论:0
- <!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="content-type" content="text/html; charset=utf-8" />
- <title>ajax php多文件上传代码</title>
- <script>
- (function(){
- var d = document, w = window;
- /**
- * get element by id
- */
- function get(element){
- if (typeof element == "string")
- element = d.getelementbyid(element);
- return element;
- }
- /**
- * attaches event to a dom element
- */
- function addevent(el, type, fn){
- if (w.addeventlistener){
- el.addeventlistener(type, fn, false);
- } else if (w.attachevent){
- var f = function(){
- fn.call(el, w.event);
- };
- el.attachevent('on' + type, f)
- }
- }
- /**
- * creates and returns element from html chunk
- */
- var toelement = function(){
- var div = d.createelement('div');
- return function(html){
- div.innerhtml = html;
- var el = div.childnodes[0];
- div.removechild(el);
- return el;
- }
- }();
- function hasclass(ele,cls){
- return ele.classname.match(new regexp('(s|^)'+cls+'(s|$)'));
- }
- function addclass(ele,cls) {
- if (!hasclass(ele,cls)) ele.classname += " "+cls;
- }
- function removeclass(ele,cls) {
- var reg = new regexp('(s|^)'+cls+'(s|$)');
- ele.classname=ele.classname.replace(reg,' ');
- }
- // getoffset function copied from jquery lib (http://jquery.com/)
- if (document.documentelement["getboundingclientrect"]){
- // get offset using getboundingclientrect
- // http://ejohn.org/blog/getboundingclientrect-is-awesome/
- var getoffset = function(el){
- var box = el.getboundingclientrect(),
- doc = el.ownerdocument,
- body = doc.body,
- docelem = doc.documentelement,
- // for ie
- clienttop = docelem.clienttop || body.clienttop || 0,
- clientleft = docelem.clientleft || body.clientleft || 0,
- // in internet explorer 7 getboundingclientrect property is treated as physical,
- // while others are logical. make all logical, like in ie8.
- zoom = 1;
- if (body.getboundingclientrect) {
- var bound = body.getboundingclientrect();
- zoom = (bound.right - bound.left)/body.clientwidth;
- }
- if (zoom > 1){
- clienttop = 0;
- clientleft = 0;
- }
- var top = box.top/zoom + (window.pageyoffset || docelem && docelem.scrolltop/zoom || body.scrolltop/zoom) - clienttop,
- left = box.left/zoom + (window.pagexoffset|| docelem && docelem.scrollleft/zoom || body.scrollleft/zoom) - clientleft;
- return {
- top: top,
- left: left
- };
- }
- } else {
- // get offset adding all offsets
- var getoffset = function(el){
- if (w.jquery){
- return jquery(el).offset();
- }
- var top = 0, left = 0;
- do {
- top += el.offsettop || 0;
- left += el.offsetleft || 0;
- }
- while (el = el.offsetparent);
- return {
- left: left,
- top: top
- };
- }
- }
- function getbox(el){
- var left, right, top, bottom;
- var offset = getoffset(el);
- left = offset.left;
- top = offset.top;
- right = left + el.offsetwidth;
- bottom = top + el.offsetheight;
- return {
- left: left,
- right: right,
- top: top,
- bottom: bottom
- };
- }
- /**
- * crossbrowser mouse coordinates
- */
- function getmousecoords(e){
- // pagex/y is not supported in ie
- // http://www.quirksmode.org/dom/w3c_css教程om.html
- if (!e.pagex && e.clientx){
- // in internet explorer 7 some properties (mouse coordinates) are treated as physical,
- // while others are logical (offset).
- var zoom = 1;
- var body = document.body;
- if (body.getboundingclientrect) {
- var bound = body.getboundingclientrect();
- zoom = (bound.right - bound.left)/body.clientwidth;
- }
- return {
- x: e.clientx / zoom + d.body.scrollleft + d.documentelement.scrollleft,
- y: e.clienty / zoom + d.body.scrolltop + d.documentelement.scrolltop
- };
- }
- return {
- x: e.pagex,
- y: e.pagey
- };
- }
- /**
- * function generates unique id
- */
- var getuid = function(){
- var id = 0;
- return function(){
- return 'valumsajaxupload' + id++;
- }
- }();
- function filefrompath(file){
- return file.replace(/.*(/|)/, "");
- }
- function getext(file){
- return (/[.]/.exec(file)) ? /[^.]+$/.exec(file.tolowercase()) : '';
- }
- /**
- * cross-browser way to get xhr object
- */
- var getxhr = function(){
- var xhr;
- return function(){
- if (xhr) return xhr;
- if (typeof xmlhttprequest !== 'undefined') {
- xhr = new xmlhttprequest();
- } else {
- var v = [
- "microsoft.xmlhttp",
- "msxml2.xmlhttp.5.0",
- "msxml2.xmlhttp.4.0",
- "msxml2.xmlhttp.3.0",
- "msxml2.xmlhttp.2.0"
- ];
- for (var i=0; i < v.length; i++){
- try {
- xhr = new activexobject(v[i]);
- break;
- } catch (e){}
- }
- }
- return xhr;
- }
- }();
- // please use ajaxupload , ajax_upload will be removed in the next version
- ajax_upload = ajaxupload = function(button, options){
- if (button.jquery){
- // jquery object was passed
- button = button[0];
- } else if (typeof button == "string" && /^#.*/.test(button)){
- button = button.slice(1);
- }
- button = get(button);
- this._input = null;
- this._button = button;
- this._disabled = false;
- this._submitting = false;
- // variable changes to true if the button was clicked
- // 3 seconds ago (requred to fix safari on mac error)
- this._justclicked = false;
- this._parentdialog = d.body;
- if (window.jquery && jquery.ui && jquery.ui.dialog){
- var parentdialog = jquery(this._button).parents('.ui-dialog');
- if (parentdialog.length){
- this._parentdialog = parentdialog[0];
- }
- }
- this._settings = {
- // location of the server-side upload script
- action: 'upload.php',
- // file upload name
- name: 'userfile',
- // additional data to send
- data: {},
- // submit file as soon as it's selected
- autosubmit: true,
- // the type of data that you're expecting back from the server.
- // html and xml are detected automatically.
- // only useful when you are using json data as a response.
- // set to "json" in that case.
- responsetype: false,
- // location of the server-side script that fixes safari
- // hanging problem returning "connection: close" header
- closeconnection: '',
- // class applied to button when mouse is hovered
- hoverclass: 'hover',
- // when user selects a file, useful with autosubmit disabled
- onchange: function(file, extension){},
- // callback to fire before file is uploaded
- // you can return false to cancel upload
- onsubmit: function(file, extension){},
- // fired when file upload is completed
- // warning! do not use "false" string as a response!
- oncomplete: function(file, response) {}
- };
- // merge the users options with our defaults
- for (var i in options) {
- this._settings[i] = options[i];
- }
- this._createinput();
- this._rerouteclicks();
- }
- // assigning methods to our class
- ajaxupload.prototype = {
- setdata : function(data){
- this._settings.data = data;
- },
- disable : function(){
- this._disabled = true;
- },
- enable : function(){
- this._disabled = false;
- },
- // removes instance
- destroy : function(){
- if(this._input){
- if(this._input.parentnode){
- this._input.parentnode.removechild(this._input);
- }
- this._input = null;
- }
- },
- /**
- * creates invisible file input above the button
- */
- _createinput : function(){
- var self = this;
- var input = d.createelement("input");
- input.setattribute('type', 'file');
- input.setattribute('name', this._settings.name);
- var styles = {
- 'position' : 'absolute'
- ,'margin': '-5px 0 0 -175px'
- ,'padding': 0
- ,'width': '220px'
- ,'height': '30px'
- ,'fontsize': '14px'
- ,'opacity': 0
- ,'cursor': 'pointer'
- ,'display' : 'none'
- ,'zindex' : 2147483583 //max zindex supported by opera 9.0-9.2x
- // strange, i expected 2147483647
- // doesn't work in ie :(
- //,'direction' : 'ltr'
- };
- for (var i in styles){
- input.style[i] = styles[i];
- }
- // make sure that element opacity exists
- // (ie uses filter instead)
- if ( ! (input.style.opacity === "0")){
- input.style.filter = "alpha(opacity=0)";
- }
- this._parentdialog.appendchild(input);
- addevent(input, 'change', function(){
- // get filename from input
- var file = filefrompath(this.value);
- if(self._settings.onchange.call(self, file, getext(file)) == false ){
- return;
- }
- // submit form when value is changed
- if (self._settings.autosubmit){
- self.submit();
- }
- });
- // fixing problem with safari
- // the problem is that if you leave input before the file select dialog opens
- // it does not upload the file.
- // as dialog opens slowly (it is a sheet dialog which takes some time to open)
- // there is some time while you can leave the button.
- // so we should not change display to none immediately
- addevent(input, 'click', function(){
- self.justclicked = true;
- settimeout(function(){
- // we will wait 3 seconds for dialog to open
- self.justclicked = false;
- }, 2500);
- });
- this._input = input;
- },
- _rerouteclicks : function (){
- var self = this;
- // ie displays 'access denied' error when using this method
- // other browsers just ignore click()
- // addevent(this._button, 'click', function(e){
- // self._input.click();
- // });
- var box, dialogoffset = {top:0, left:0}, over = false;
- addevent(self._button, 'mouseo教程ver', function(e){
- if (!self._input || over) return;
- over = true;
- box = getbox(self._button);
- if (self._parentdialog != d.body){
- dialogoffset = getoffset(self._parentdialog);
- }
- });
- // we can't use mouseout on the button,
- // because invisible input is over it
- addevent(document, 'mousemove', function(e){
- var input = self._input;
- if (!input || !over) return;
- if (self._disabled){
- removeclass(self._button, self._settings.hoverclass);
- input.style.display = 'none';
- return;
- }
- var c = getmousecoords(e);
- if ((c.x >= box.left) && (c.x <= box.right) &&
- (c.y >= box.top) && (c.y <= box.bottom)){
- input.style.top = c.y - dialogoffset.top + 'px';
- input.style.left = c.x - dialogoffset.left + 'px';
- input.style.display = 'block';
- addclass(self._button, self._settings.hoverclass);
- } else {
- // mouse left the button
- over = false;
- var check = setinterval(function(){
- // if input was just clicked do not hide it
- // to prevent safari bug
- if (self.justclicked){
- return;
- }
- if ( !over ){
- input.style.display = 'none';
- }
- clearinterval(check);
- }, 25);
- removeclass(self._button, self._settings.hoverclass);
- }
- });
- },
- /**
- * creates iframe with unique name
- */
- _createiframe : function(){
- // unique name
- // we cannot use gettime, because it sometimes return
- // same value in safari :(
- var id = getuid();
- // remove ie6 "this page contains both secure and nonsecure items" prompt
- // http://tinyurl.com/77w9wh
- var iframe = toelement('<iframe src="网页特效:false;" name="' + id + '" />');
- iframe.id = id;
- iframe.style.display = 'none';
- d.body.appendchild(iframe);
- return iframe;
- },
- /**
- * upload file without refreshing the page
- */
- submit : function(){
- var self = this, settings = this._settings;
- if (this._input.value === ''){
- // there is no file
- return;
- }
- // get filename from input
- var file = filefrompath(this._input.value);
- // execute user event
- if (! (settings.onsubmit.call(this, file, getext(file)) == false)) {
- // create new iframe for this submission
- var iframe = this._createiframe();
- // do not submit if user function returns false
- var form = this._createform(iframe);
- form.appendchild(this._input);
- // a pretty little hack to make uploads not hang in safari. just call this
- // immediately before the upload is submitted. this does an ajax call to
- // the server, which returns an empty document with the "connection: close"
- // header, telling safari to close the active connection.
- // http://blog.airbladesoftware.com/2007/8/17/note-to-self-prevent-uploads-hanging-in-safari
- if (settings.closeconnection && /applewebkit|msie/.test(navigator.useragent)){
- var xhr = getxhr();
- // open synhronous connection
- xhr.open('get', settings.closeconnection, false);
- xhr.send('');
- }
- form.submit();
- d.body.removechild(form);
- form = null;
- this._input = null;
- // create new input
- this._createinput();
- var todeleteflag = false;
- addevent(iframe, 'load', function(e){
- if (// for safari
- iframe.src == "javascript:'%3chtml%3e%3c/html%3e';" ||
- // for ff, ie
- iframe.src == "javascript:'<html></html>';"){
- // first time around, do not delete.
- if( todeleteflag ){
- // fix busy state in ff3
- settimeout( function() {
- d.body.removechild(iframe);
- }, 0);
- }
- return;
- }
- var doc = iframe.contentdocument ? iframe.contentdocument : frames[iframe.id].document;
- // fixing opera 9.26
- if (doc.readystate && doc.readystate != 'complete'){
- // opera fires load event multiple times
- // even when the dom is not ready yet
- // this fix should not affect other browsers
- return;
- }
- // fixing opera 9.64
- if (doc.body && doc.body.innerhtml == "false"){
- // in opera 9.64 event was fired second time
- // when body.innerhtml changed from false
- // to server response approx. after 1 sec
- return;
- }
- var response;
- if (doc.xmldocument){
- // response is a xml document ie property
- response = doc.xmldocument;
- } else if (doc.body){
- // response is html document or plain text
- response = doc.body.innerhtml;
- if (settings.responsetype && settings.responsetype.tolowercase() == 'json'){
- // if the document was sent as 'application/javascript' or
- // 'text/javascript', then the browser wraps教程 the text in a <pre>
- // tag and performs html encoding on the contents. in this case,
- // we need to pull the original text content from the text node's
- // nodevalue property to retrieve the unmangled content.
- // note that ie6 only understands text/html
- if (doc.body.firstchild && doc.body.firstchild.nodename.touppercase() == 'pre'){
- response = doc.body.firstchild.firstchild.nodevalue;
- }
- if (response) {
- response = window["eval"]("(" + response + ")");
- } else {
- response = {};
- }
- }
- } else {
- // response is a xml document
- var response = doc;
- }
- settings.oncomplete.call(self, file, response);
- // reload blank page, so that reloading main page
- // does not re-submit the post. also, remember to
- // delete the frame
- todeleteflag = true;
- // fix ie mixed content issue
- iframe.src = "javascript:'<html></html>';";
- });
- } else {
- // clear input to allow user to select same file
- // doesn't work in ie6
- // this._input.value = '';
- d.body.removechild(this._input);
- this._input = null;
- // create new input
- this._createinput();
- }
- },
- /**
- * creates form, that will be submitted to iframe
- */
- _createform : function(iframe){
- var settings = this._settings;
- // method, enctype must be specified here
- // because changing this attr on the fly is not allowed in ie 6/7
- var form = toelement('<form method="post" enctype="multipart/form-data"></form>');
- form.style.display = 'none';
- form.action = settings.action;
- form.target = iframe.name;
- d.body.appendchild(form);
- // create hidden input element for each data key
- for (var prop in settings.data){
- var el = d.createelement("input");
- el.type = 'hidden';
- el.name = prop;
- el.value = settings.data[prop];
- form.appendchild(el);
- }
- return form;
- }
- };
- })();
- </script>
- </head>
- <body>
- <p id="errorremind"></p>
- <input id="unloadpic" type="button" value="上传图片" />
- <ol id="uploadedname"></ol>
- <script type="text/javascript" src="../js/ajaxupload.js"></script>
- <script type="text/javascript">
- window.onload = function(){
- var obtn = document.getelementbyid("unloadpic");
- var oshow = document.getelementbyid("uploadedname");
- var oremind = document.getelementbyid("errorremind");
- new ajaxupload(obtn,{
- action:"file_upload.php",
- name:"upload",
- onsubmit:function(file,ext){
- if(ext && /^(jpg|jpeg|png|gif)$/.test(ext)){
- //ext是后缀名
- obtn.value = "正在上传…";
- obtn.disabled = "disabled";
- }else{
- oremind.style.color = "#ff3300";
- oremind.innerhtml = "不支持非图片格式!";
- return false;
- }
- },
- oncomplete:function(file,response){
- obtn.disabled = "";
- obtn.value = "再上传一张图片";
- oremind.innerhtml = "";
- var newchild = document.createelement("li");
- newchild.innerhtml = file;
- oshow.appendchild(newchild);
- }
- });
- };
- </script>
- </body>
- </html>
- <?php #file_upload.php 2009-11-06
- //开源代码phpfensi.com
- $file_path = '../../../uploads/';
- $file_up = $file_path.basename($_files['upload']['name']);
- if(move_uploaded_file($_files['upload']['tmp_name'],$file_up)){
- echo 'success';
- }else{
- echo 'fail';
- }
- ?>
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