代码结构如下：
1、HTML代码，没必要解释了。
<span style="color: #008080;"> 1</span> <span style="color: #0000ff;"><span style="color: #ff00ff;">DOCTYPE html</span><span style="color: #0000ff;">></span>
<span style="color: #008080;"> 2</span> <span style="color: #0000ff;"><span style="color: #800000;">html</span><span style="color: #0000ff;">></span>
<span style="color: #008080;"> 3</span> <span style="color: #0000ff;"><span style="color: #800000;">head</span><span style="color: #0000ff;">></span>
<span style="color: #008080;"> 4</span> <span style="color: #0000ff;"><span style="color: #800000;">meta </span><span style="color: #ff0000;">charset</span><span style="color: #0000ff;">="UTF-8"</span><span style="color: #0000ff;">></span>
<span style="color: #008080;"> 5</span> <span style="color: #0000ff;"><span style="color: #800000;">title</span><span style="color: #0000ff;">></span>文件上传<span style="color: #0000ff;"></span><span style="color: #800000;">title</span><span style="color: #0000ff;">></span>
<span style="color: #008080;"> 6</span> <span style="color: #0000ff;"><span style="color: #800000;">script </span><span style="color: #ff0000;">src</span><span style="color: #0000ff;">="http://libs.baidu.com/jquery/2.0.0/jquery.min.js"</span><span style="color: #0000ff;">></span><span style="color: #800000;">script</span><span style="color: #0000ff;">></span>
<span style="color: #008080;"> 7</span> <span style="color: #0000ff;"><span style="color: #800000;">script </span><span style="color: #ff0000;">src</span><span style="color: #0000ff;">="uploads/ajaxFileUpload.js"</span><span style="color: #ff0000;"> type</span><span style="color: #0000ff;">="text/javascript"</span><span style="color: #ff0000;"> charset</span><span style="color: #0000ff;">="utf-8"</span><span style="color: #0000ff;">></span><span style="color: #800000;">script</span><span style="color: #0000ff;">></span>
<span style="color: #008080;"> 8</span> <span style="color: #0000ff;"><span style="color: #800000;">script </span><span style="color: #ff0000;">type</span><span style="color: #0000ff;">="text/javascript"</span><span style="color: #0000ff;">></span>
<span style="color: #008080;"> 9</span> <span style="background-color: #f5f5f5; color: #000000;"> $(</span><span style="background-color: #f5f5f5; color: #0000ff;">function</span><span style="background-color: #f5f5f5; color: #000000;">(){
</span><span style="color: #008080;">10</span> <span style="background-color: #f5f5f5; color: #000000;"> $(</span><span style="background-color: #f5f5f5; color: #000000;">'</span><span style="background-color: #f5f5f5; color: #000000;">#ti</span><span style="background-color: #f5f5f5; color: #000000;">'</span><span style="background-color: #f5f5f5; color: #000000;">).click(</span><span style="background-color: #f5f5f5; color: #0000ff;">function</span><span style="background-color: #f5f5f5; color: #000000;">(){
</span><span style="color: #008080;">11</span> <span style="background-color: #f5f5f5; color: #0000ff;">var</span><span style="background-color: #f5f5f5; color: #000000;"> data </span><span style="background-color: #f5f5f5; color: #000000;">=</span><span style="background-color: #f5f5f5; color: #000000;"> { name: </span><span style="background-color: #f5f5f5; color: #000000;">'</span><span style="background-color: #f5f5f5; color: #000000;">my name</span><span style="background-color: #f5f5f5; color: #000000;">'</span><span style="background-color: #f5f5f5; color: #000000;">, description: </span><span style="background-color: #f5f5f5; color: #000000;">'</span><span style="background-color: #f5f5f5; color: #000000;">short description</span><span style="background-color: #f5f5f5; color: #000000;">'</span><span style="background-color: #f5f5f5; color: #000000;"> }
</span><span style="color: #008080;">12</span> <span style="background-color: #f5f5f5; color: #000000;"> $.ajaxFileUpload({
</span><span style="color: #008080;">13</span> <span style="background-color: #f5f5f5; color: #000000;"> url: </span><span style="background-color: #f5f5f5; color: #000000;">'</span><span style="background-color: #f5f5f5; color: #000000;">up.php</span><span style="background-color: #f5f5f5; color: #000000;">'</span><span style="background-color: #f5f5f5; color: #000000;">,
</span><span style="color: #008080;">14</span> <span style="background-color: #f5f5f5; color: #000000;"> secureuri: </span><span style="background-color: #f5f5f5; color: #0000ff;">false</span><span style="background-color: #f5f5f5; color: #000000;">,
</span><span style="color: #008080;">15</span> <span style="background-color: #f5f5f5; color: #000000;"> data: data,
</span><span style="color: #008080;">16</span> <span style="background-color: #f5f5f5; color: #000000;"> fileElementId: </span><span style="background-color: #f5f5f5; color: #000000;">'</span><span style="background-color: #f5f5f5; color: #000000;">upf</span><span style="background-color: #f5f5f5; color: #000000;">'</span><span style="background-color: #f5f5f5; color: #000000;">,
</span><span style="color: #008080;">17</span> <span style="background-color: #f5f5f5; color: #000000;"> dataType: </span><span style="background-color: #f5f5f5; color: #000000;">'</span><span style="background-color: #f5f5f5; color: #000000;">json</span><span style="background-color: #f5f5f5; color: #000000;">'</span><span style="background-color: #f5f5f5; color: #000000;">,
</span><span style="color: #008080;">18</span> <span style="background-color: #f5f5f5; color: #000000;"> success: </span><span style="background-color: #f5f5f5; color: #0000ff;">function</span><span style="background-color: #f5f5f5; color: #000000;"> (data) {
</span><span style="color: #008080;">19</span> <span style="background-color: #f5f5f5; color: #008000;">//</span><span style="background-color: #f5f5f5; color: #008000;"> var datejson=eval(data);</span>
<span style="color: #008080;">20</span> <span style="background-color: #f5f5f5; color: #008000;">//</span><span style="background-color: #f5f5f5; color: #008000;">console.log(data[0].path_name)</span>
<span style="color: #008080;">21</span> <span style="background-color: #f5f5f5; color: #000000;"> $(</span><span style="background-color: #f5f5f5; color: #000000;">'</span><span style="background-color: #f5f5f5; color: #000000;">#im</span><span style="background-color: #f5f5f5; color: #000000;">'</span><span style="background-color: #f5f5f5; color: #000000;">).append(</span><span style="background-color: #f5f5f5; color: #000000;">'</span><span style="background-color: #f5f5f5; color: #000000;"><img src="/static/imghw/default1.png" data-src="'+data[0].path_name+'" class="lazy" background-color: color: alt="JQ插件ajaxFileUpload、php实现图片，数据同时上传 - 云翳1895" >'</span><span style="max-width:90%">+</span><span style="background-color: #f5f5f5; color: #000000;">data[</span><span style="background-color: #f5f5f5; color: #000000;">0</span><span style="background-color: #f5f5f5; color: #000000;">].path_name</span><span style="background-color: #f5f5f5; color: #000000;">+</span><span style="background-color: #f5f5f5; color: #000000;">'</span><span style="background-color: #f5f5f5; color: #000000;">"></span><span style="background-color: #f5f5f5; color: #000000;">'</span><span style="background-color: #f5f5f5; color: #000000;">)
</span><span style="color: #008080;">22</span> <span style="background-color: #f5f5f5; color: #008000;">//</span><span style="background-color: #f5f5f5; color: #008000;">console.log('<img src="/static/imghw/default1.png" data-src="'+data[0].path_name+'" class="lazy" alt="JQ插件ajaxFileUpload、php实现图片，数据同时上传 - 云翳1895" >')</span>
<span style="color: #008080;">23</span> <span style="background-color: #f5f5f5; color: #000000;"> },
</span><span style="color: #008080;">24</span> <span style="background-color: #f5f5f5; color: #000000;"> error: </span><span style="background-color: #f5f5f5; color: #0000ff;">function</span><span style="background-color: #f5f5f5; color: #000000;"> (data) {
</span><span style="color: #008080;">25</span> <span style="background-color: #f5f5f5; color: #000000;"> console.log(data)
</span><span style="color: #008080;">26</span> <span style="background-color: #f5f5f5; color: #000000;"> }
</span><span style="color: #008080;">27</span> <span style="background-color: #f5f5f5; color: #000000;"> });
</span><span style="color: #008080;">28</span>
<span style="color: #008080;">29</span> <span style="background-color: #f5f5f5; color: #000000;"> })
</span><span style="color: #008080;">30</span>
<span style="color: #008080;">31</span> <span style="background-color: #f5f5f5; color: #000000;"> })
</span><span style="color: #008080;">32</span> <span style="color: #0000ff;"></span><span style="color: #800000;">script</span><span style="color: #0000ff;">></span>
<span style="color: #008080;">33</span> <span style="color: #0000ff;"></span><span style="color: #800000;">head</span><span style="color: #0000ff;">></span>
<span style="color: #008080;">34</span> <span style="color: #0000ff;"><span style="color: #800000;">body</span><span style="color: #0000ff;">></span>
<span style="color: #008080;">35</span> <span style="color: #008000;"><!--</span><span style="color: #008000;"><form action="up.php" method="post" enctype="multipart/form-data">
</span><span style="color: #008080;">36</span> <span style="color: #008000;"> </form></span><span style="color: #008000;">--></span>
<span style="color: #008080;">37</span> <span style="color: #0000ff;"><span style="color: #800000;">input </span><span style="color: #ff0000;">type</span><span style="color: #0000ff;">="file"</span><span style="color: #ff0000;"> name</span><span style="color: #0000ff;">="upfm"</span><span style="color: #ff0000;"> id</span><span style="color: #0000ff;">="upf"</span><span style="color: #ff0000;"> value</span><span style="color: #0000ff;">=""</span> <span style="color: #0000ff;">/></span>
<span style="color: #008080;">38</span> <span style="color: #0000ff;"><span style="color: #800000;">input </span><span style="color: #ff0000;">id</span><span style="color: #0000ff;">='ti' </span><span style="color: #ff0000;">type</span><span style="color: #0000ff;">="button"</span><span style="color: #ff0000;"> value</span><span style="color: #0000ff;">="提交"</span><span style="color: #0000ff;">/></span>
<span style="color: #008080;">39</span>
<span style="color: #008080;">40</span> <span style="color: #0000ff;"><span style="color: #800000;">div </span><span style="color: #ff0000;">id</span><span style="color: #0000ff;">="im"</span><span style="color: #0000ff;">></span>
<span style="color: #008080;">41</span>
<span style="color: #008080;">42</span> <span style="color: #0000ff;"></span><span style="color: #800000;">div</span><span style="color: #0000ff;">></span>
<span style="color: #008080;">43</span>
<span style="color: #008080;">44</span> <span style="color: #0000ff;"></span><span style="color: #800000;">body</span><span style="color: #0000ff;">></span>
<span style="color: #008080;">45</span>
<span style="color: #008080;">46</span> <span style="color: #0000ff;"></span><span style="color: #800000;">html</span><span style="color: #0000ff;">></span></span></span></span></span></span></span></span></span></span></span></span></span>
2、关于ajaxFileUpload插件，在下面代码中如果你使用的是JQ1.9以上请复制1-12到你的ajaxFileUpload代码中，JQ在很早就废弃了handleError方法。注释关于代码的解释很清楚。
<span style="color: #008080;"> 1</span> <span style="color: #000000;">jQuery.extend({
</span><span style="color: #008080;"> 2</span> handleError: <span style="color: #0000ff;">function</span><span style="color: #000000;">( s, xhr, status, e ) {
</span><span style="color: #008080;"> 3</span>
<span style="color: #008080;"> 4</span> <span style="color: #0000ff;">if</span><span style="color: #000000;"> ( s.error ) {
</span><span style="color: #008080;"> 5</span> s.error.call( s.context ||<span style="color: #000000;"> s, xhr, status, e );
</span><span style="color: #008080;"> 6</span> <span style="color: #000000;"> }
</span><span style="color: #008080;"> 7</span>
<span style="color: #008080;"> 8</span>
<span style="color: #008080;"> 9</span> <span style="color: #0000ff;">if</span><span style="color: #000000;"> ( s.global ) {
</span><span style="color: #008080;"> 10</span> (s.context ? jQuery(s.context) : jQuery.event).trigger( "ajaxError"<span style="color: #000000;">, [xhr, s, e] );
</span><span style="color: #008080;"> 11</span> <span style="color: #000000;"> }
</span><span style="color: #008080;"> 12</span> <span style="color: #000000;"> },
</span><span style="color: #008080;"> 13</span> createUploadIframe: <span style="color: #0000ff;">function</span> (id, uri) {<span style="color: #008000;">//</span><span style="color: #008000;">id为当前系统时间字符串，uri是外部传入的json对象的一个参数</span>
<span style="color: #008080;"> 14</span> <span style="color: #008000;">//</span><span style="color: #008000;">create frame</span>
<span style="color: #008080;"> 15</span> <span style="color: #0000ff;">var</span> frameId = 'jUploadFrame' + id; <span style="color: #008000;">//</span><span style="color: #008000;">给iframe添加一个独一无二的id</span>
<span style="color: #008080;"> 16</span> <span style="color: #0000ff;">var</span> iframeHtml = '<iframe id="' + frameId + '" name="' + frameId + '" style="position:absolute; top:-9999px; left:-9999px">//<span style="color: #008000;">创建iframe元素</span>
<span style="color: #008080;"> 17</span> <span style="color: #0000ff;">if</span> (window.ActiveXObject) {<span style="color: #008000;">//</span><span style="color: #008000;">判断浏览器是否支持ActiveX控件</span>
<span style="color: #008080;"> 18</span> <span style="color: #0000ff;">if</span> (<span style="color: #0000ff;">typeof</span> uri == 'boolean'<span style="color: #000000;">) {
</span><span style="color: #008080;"> 19</span> iframeHtml += ' src="' + 'javascript:false' + '"'<span style="color: #000000;">;
</span><span style="color: #008080;"> 20</span> } <span style="color: #0000ff;">else</span> <span style="color: #0000ff;">if</span> (<span style="color: #0000ff;">typeof</span> uri == 'string'<span style="color: #000000;">) {
</span><span style="color: #008080;"> 21</span> iframeHtml += ' src="' + uri + '"'<span style="color: #000000;">;
</span><span style="color: #008080;"> 22</span> <span style="color: #000000;"> }
</span><span style="color: #008080;"> 23</span> <span style="color: #000000;"> }
</span><span style="color: #008080;"> 24</span> iframeHtml += ' />'<span style="color: #000000;">;
</span><span style="color: #008080;"> 25</span> jQuery(iframeHtml).appendTo(document.body); <span style="color: #008000;">//</span><span style="color: #008000;">将动态iframe追加到body中</span>
<span style="color: #008080;"> 26</span> <span style="color: #0000ff;">return</span> jQuery('#' + frameId).get(0); <span style="color: #008000;">//</span><span style="color: #008000;">返回iframe对象</span>
<span style="color: #008080;"> 27</span> <span style="color: #000000;"> },
</span><span style="color: #008080;"> 28</span> createUploadForm: <span style="color: #0000ff;">function</span> (id, fileElementId, data) {<span style="color: #008000;">//</span><span style="color: #008000;">id为当前系统时间字符串，fileElementId为页面<input type="file">的id，data的值需要根据传入json的键来决定</span>
<span style="color: #008080;"> 29</span> <span style="color: #008000;">//</span><span style="color: #008000;">create form </span>
<span style="color: #008080;"> 30</span> <span style="color: #0000ff;">var</span> formId = 'jUploadForm' + id; <span style="color: #008000;">//</span><span style="color: #008000;">给form添加一个独一无二的id</span>
<span style="color: #008080;"> 31</span> <span style="color: #0000ff;">var</span> fileId = 'jUploadFile' + id; <span style="color: #008000;">//</span><span style="color: #008000;">给<input type="file">添加一个独一无二的id</span>
<span style="color: #008080;"> 32</span> <span style="color: #0000ff;">var</span> form = jQuery('<form action="" method="POST" name="' + formId + '" id="' + formId + '" enctype="multipart/form-data"></form>'); <span style="color: #008000;">//</span><span style="color: #008000;">创建form元素</span>
<span style="color: #008080;"> 33</span> <span style="color: #0000ff;">if</span> (data) {<span style="color: #008000;">//</span><span style="color: #008000;">通常为false</span>
<span style="color: #008080;"> 34</span> <span style="color: #0000ff;">for</span> (<span style="color: #0000ff;">var</span> i <span style="color: #0000ff;">in</span><span style="color: #000000;"> data) {
</span><span style="color: #008080;"> 35</span> jQuery('<input type="hidden" name="' + i + '" value="' + data[i] + '">').appendTo(form); <span style="color: #008000;">//</span><span style="color: #008000;">根据data的内容，创建隐藏域，这部分我还不知道是什么时候用到。估计是传入json的时候，如果默认传一些参数的话要用到。</span>
<span style="color: #008080;"> 36</span> <span style="color: #000000;"> }
</span><span style="color: #008080;"> 37</span> } <span style="color: #0000ff;">var</span> oldElement = jQuery('#' + fileElementId); <span style="color: #008000;">//</span><span style="color: #008000;">得到页面中的<input type="file">对象</span>
<span style="color: #008080;"> 38</span> <span style="color: #0000ff;">var</span> newElement = jQuery(oldElement).clone(); <span style="color: #008000;">//</span><span style="color: #008000;">克隆页面中的<input type="file">对象</span>
<span style="color: #008080;"> 39</span> jQuery(oldElement).attr('id', fileId); <span style="color: #008000;">//</span><span style="color: #008000;">修改原对象的id</span>
<span style="color: #008080;"> 40</span> jQuery(oldElement).before(newElement); <span style="color: #008000;">//</span><span style="color: #008000;">在原对象前插入克隆对象</span>
<span style="color: #008080;"> 41</span> jQuery(oldElement).appendTo(form); <span style="color: #008000;">//</span><span style="color: #008000;">把原对象插入到动态form的结尾处</span>
<span style="color: #008080;"> 42</span> <span style="color: #008000;">//</span><span style="color: #008000;">set attributes</span>
<span style="color: #008080;"> 43</span> jQuery(form).css('position', 'absolute'); <span style="color: #008000;">//</span><span style="color: #008000;">给动态form添加样式，使其浮动起来，</span>
<span style="color: #008080;"> 44</span> jQuery(form).css('top', '-1200px'<span style="color: #000000;">);
</span><span style="color: #008080;"> 45</span> jQuery(form).css('left', '-1200px'<span style="color: #000000;">);
</span><span style="color: #008080;"> 46</span> jQuery(form).appendTo('body'); <span style="color: #008000;">//</span><span style="color: #008000;">把动态form插入到body中</span>
<span style="color: #008080;"> 47</span> <span style="color: #0000ff;">return</span><span style="color: #000000;"> form;
</span><span style="color: #008080;"> 48</span> <span style="color: #000000;"> },
</span><span style="color: #008080;"> 49</span> ajaxFileUpload: <span style="color: #0000ff;">function</span> (s) {<span style="color: #008000;">//</span><span style="color: #008000;">这里s是个json对象，传入一些ajax的参数</span>
<span style="color: #008080;"> 50</span> <span style="color: #008000;">//</span><span style="color: #008000;"> TODO introduce global settings, allowing the client to modify them for all requests, not only timeout </span>
<span style="color: #008080;"> 51</span> s = jQuery.extend({}, jQuery.ajaxSettings, s); <span style="color: #008000;">//</span><span style="color: #008000;">此时的s对象是由jQuery.ajaxSettings和原s对象扩展后的对象</span>
<span style="color: #008080;"> 52</span> <span style="color: #0000ff;">var</span> id = <span style="color: #0000ff;">new</span> Date().getTime(); <span style="color: #008000;">//</span><span style="color: #008000;">取当前系统时间，目的是得到一个独一无二的数字</span>
<span style="color: #008080;"> 53</span> <span style="color: #0000ff;">var</span> form = jQuery.createUploadForm(id, s.fileElementId, (<span style="color: #0000ff;">typeof</span> (s.data) == 'undefined' ? <span style="color: #0000ff;">false</span> : s.data)); <span style="color: #008000;">//</span><span style="color: #008000;">创建动态form</span>
<span style="color: #008080;"> 54</span> <span style="color: #0000ff;">var</span> io = jQuery.createUploadIframe(id, s.secureuri); <span style="color: #008000;">//</span><span style="color: #008000;">创建动态iframe</span>
<span style="color: #008080;"> 55</span> <span style="color: #0000ff;">var</span> frameId = 'jUploadFrame' + id; <span style="color: #008000;">//</span><span style="color: #008000;">动态iframe的id</span>
<span style="color: #008080;"> 56</span> <span style="color: #0000ff;">var</span> formId = 'jUploadForm' + id; <span style="color: #008000;">//</span><span style="color: #008000;">动态form的id</span>
<span style="color: #008080;"> 57</span> <span style="color: #008000;">//</span><span style="color: #008000;"> Watch for a new set of requests</span>
<span style="color: #008080;"> 58</span> <span style="color: #0000ff;">if</span> (s.global && !jQuery.active++) {<span style="color: #008000;">//</span><span style="color: #008000;">当jQuery开始一个ajax请求时发生</span>
<span style="color: #008080;"> 59</span> jQuery.event.trigger("ajaxStart"); <span style="color: #008000;">//</span><span style="color: #008000;">触发ajaxStart方法</span>
<span style="color: #008080;"> 60</span> } <span style="color: #0000ff;">var</span> requestDone = <span style="color: #0000ff;">false</span>; <span style="color: #008000;">//</span><span style="color: #008000;">请求完成标志</span>
<span style="color: #008080;"> 61</span> <span style="color: #008000;">//</span><span style="color: #008000;"> Create the request object</span>
<span style="color: #008080;"> 62</span> <span style="color: #0000ff;">var</span> xml = {}; <span style="color: #0000ff;">if</span><span style="color: #000000;"> (s.global)
</span><span style="color: #008080;"> 63</span> jQuery.event.trigger("ajaxSend", [xml, s]); <span style="color: #008000;">//</span><span style="color: #008000;">触发ajaxSend方法</span>
<span style="color: #008080;"> 64</span> <span style="color: #008000;">//</span><span style="color: #008000;"> Wait for a response to come back</span>
<span style="color: #008080;"> 65</span> <span style="color: #0000ff;">var</span> uploadCallback = <span style="color: #0000ff;">function</span> (isTimeout) {<span style="color: #008000;">//</span><span style="color: #008000;">回调函数</span>
<span style="color: #008080;"> 66</span> <span style="color: #0000ff;">var</span> io = document.getElementById(frameId); <span style="color: #008000;">//</span><span style="color: #008000;">得到iframe对象</span>
<span style="color: #008080;"> 67</span> <span style="color: #0000ff;">try</span> { <span style="color: #0000ff;">if</span> (io.contentWindow) {<span style="color: #008000;">//</span><span style="color: #008000;">动态iframe所在窗口对象是否存在</span>
<span style="color: #008080;"> 68</span> xml.responseText = io.contentWindow.document.body ? io.contentWindow.document.body.innerHTML : <span style="color: #0000ff;">null</span><span style="color: #000000;">;
</span><span style="color: #008080;"> 69</span> xml.responseXML = io.contentWindow.document.XMLDocument ?<span style="color: #000000;"> io.contentWindow.document.XMLDocument : io.contentWindow.document;
</span><span style="color: #008080;"> 70</span> } <span style="color: #0000ff;">else</span> <span style="color: #0000ff;">if</span> (io.contentDocument) {<span style="color: #008000;">//</span><span style="color: #008000;">动态iframe的文档对象是否存在</span>
<span style="color: #008080;"> 71</span> xml.responseText = io.contentDocument.document.body ? io.contentDocument.document.body.innerHTML : <span style="color: #0000ff;">null</span><span style="color: #000000;">;
</span><span style="color: #008080;"> 72</span> xml.responseXML = io.contentDocument.document.XMLDocument ?<span style="color: #000000;"> io.contentDocument.document.XMLDocument : io.contentDocument.document;
</span><span style="color: #008080;"> 73</span> <span style="color: #000000;"> }
</span><span style="color: #008080;"> 74</span> } <span style="color: #0000ff;">catch</span><span style="color: #000000;"> (e) {
</span><span style="color: #008080;"> 75</span> jQuery.handleError(s, xml, <span style="color: #0000ff;">null</span><span style="color: #000000;">, e);
</span><span style="color: #008080;"> 76</span> } <span style="color: #0000ff;">if</span> (xml || isTimeout == "timeout") {<span style="color: #008000;">//</span><span style="color: #008000;">xml变量被赋值或者isTimeout == "timeout"都表示请求发出，并且有响应</span>
<span style="color: #008080;"> 77</span> requestDone = <span style="color: #0000ff;">true</span>; <span style="color: #008000;">//</span><span style="color: #008000;">请求完成</span>
<span style="color: #008080;"> 78</span> <span style="color: #0000ff;">var</span> status; <span style="color: #0000ff;">try</span><span style="color: #000000;"> {
</span><span style="color: #008080;"> 79</span> status = isTimeout != "timeout" ? "success" : "error"; <span style="color: #008000;">//</span><span style="color: #008000;">如果不是“超时”，表示请求成功</span>
<span style="color: #008080;"> 80</span> <span style="color: #008000;">//</span><span style="color: #008000;"> Make sure that the request was successful or notmodified</span>
<span style="color: #008080;"> 81</span> <span style="color: #0000ff;">if</span> (status != "error") { <span style="color: #008000;">//</span><span style="color: #008000;"> process the data (runs the xml through httpData regardless of callback)</span>
<span style="color: #008080;"> 82</span> <span style="color: #0000ff;">var</span> data = jQuery.uploadHttpData(xml, s.dataType); <span style="color: #008000;">//</span><span style="color: #008000;">根据传送的type类型，返回json对象，此时返回的data就是后台操作后的返回结果</span>
<span style="color: #008080;"> 83</span> <span style="color: #008000;">//</span><span style="color: #008000;"> If a local callback was specified, fire it and pass it the data</span>
<span style="color: #008080;"> 84</span> <span style="color: #0000ff;">if</span><span style="color: #000000;"> (s.success)
</span><span style="color: #008080;"> 85</span> s.success(data, status); <span style="color: #008000;">//</span><span style="color: #008000;">执行上传成功的操作</span>
<span style="color: #008080;"> 86</span> <span style="color: #008000;">//</span><span style="color: #008000;"> Fire the global callback</span>
<span style="color: #008080;"> 87</span> <span style="color: #0000ff;">if</span><span style="color: #000000;"> (s.global)
</span><span style="color: #008080;"> 88</span> jQuery.event.trigger("ajaxSuccess"<span style="color: #000000;">, [xml, s]);
</span><span style="color: #008080;"> 89</span> } <span style="color: #0000ff;">else</span>
<span style="color: #008080;"> 90</span> <span style="color: #000000;"> jQuery.handleError(s, xml, status);
</span><span style="color: #008080;"> 91</span> } <span style="color: #0000ff;">catch</span><span style="color: #000000;"> (e) {
</span><span style="color: #008080;"> 92</span> status = "error"<span style="color: #000000;">;
</span><span style="color: #008080;"> 93</span> <span style="color: #000000;"> jQuery.handleError(s, xml, status, e);
</span><span style="color: #008080;"> 94</span> } <span style="color: #008000;">//</span><span style="color: #008000;"> The request was completed</span>
<span style="color: #008080;"> 95</span> <span style="color: #0000ff;">if</span><span style="color: #000000;"> (s.global)
</span><span style="color: #008080;"> 96</span> jQuery.event.trigger("ajaxComplete", [xml, s]); <span style="color: #008000;">//</span><span style="color: #008000;"> Handle the global AJAX counter</span>
<span style="color: #008080;"> 97</span> <span style="color: #0000ff;">if</span> (s.global && ! --<span style="color: #000000;">jQuery.active)
</span><span style="color: #008080;"> 98</span> jQuery.event.trigger("ajaxStop"); <span style="color: #008000;">//</span><span style="color: #008000;"> Process result</span>
<span style="color: #008080;"> 99</span> <span style="color: #0000ff;">if</span><span style="color: #000000;"> (s.complete)
</span><span style="color: #008080;">100</span> <span style="color: #000000;"> s.complete(xml, status);
</span><span style="color: #008080;">101</span> jQuery(io).unbind();<span style="color: #008000;">//</span><span style="color: #008000;">移除iframe的事件处理程序</span>
<span style="color: #008080;">102</span> setTimeout(<span style="color: #0000ff;">function</span> () {<span style="color: #008000;">//</span><span style="color: #008000;">设置超时时间</span>
<span style="color: #008080;">103</span> <span style="color: #0000ff;">try</span><span style="color: #000000;"> {
</span><span style="color: #008080;">104</span> jQuery(io).remove();<span style="color: #008000;">//</span><span style="color: #008000;">移除动态iframe</span>
<span style="color: #008080;">105</span> jQuery(form).remove();<span style="color: #008000;">//</span><span style="color: #008000;">移除动态form</span>
<span style="color: #008080;">106</span> } <span style="color: #0000ff;">catch</span><span style="color: #000000;"> (e) {
</span><span style="color: #008080;">107</span> jQuery.handleError(s, xml, <span style="color: #0000ff;">null</span><span style="color: #000000;">, e);
</span><span style="color: #008080;">108</span> <span style="color: #000000;"> }
</span><span style="color: #008080;">109</span> }, 100<span style="color: #000000;">)
</span><span style="color: #008080;">110</span> xml = <span style="color: #0000ff;">null</span>
<span style="color: #008080;">111</span> <span style="color: #000000;"> }
</span><span style="color: #008080;">112</span> } <span style="color: #008000;">//</span><span style="color: #008000;"> Timeout checker</span>
<span style="color: #008080;">113</span> <span style="color: #0000ff;">if</span> (s.timeout > 0) {<span style="color: #008000;">//</span><span style="color: #008000;">超时检测</span>
<span style="color: #008080;">114</span> setTimeout(<span style="color: #0000ff;">function</span> () { <span style="color: #008000;">//</span><span style="color: #008000;"> Check to see if the request is still happening</span>
<span style="color: #008080;">115</span> <span style="color: #0000ff;">if</span> (!requestDone) uploadCallback("timeout");<span style="color: #008000;">//</span><span style="color: #008000;">如果请求仍未完成，就发送超时信号</span>
<span style="color: #008080;">116</span> <span style="color: #000000;"> }, s.timeout);
</span><span style="color: #008080;">117</span> } <span style="color: #0000ff;">try</span> { <span style="color: #0000ff;">var</span> form = jQuery('#' +<span style="color: #000000;"> formId);
</span><span style="color: #008080;">118</span> jQuery(form).attr('action', s.url);<span style="color: #008000;">//</span><span style="color: #008000;">传入的ajax页面导向url</span>
<span style="color: #008080;">119</span> jQuery(form).attr('method', 'POST');<span style="color: #008000;">//</span><span style="color: #008000;">设置提交表单方式</span>
<span style="color: #008080;">120</span> jQuery(form).attr('target', frameId);<span style="color: #008000;">//</span><span style="color: #008000;">返回的目标iframe，就是创建的动态iframe</span>
<span style="color: #008080;">121</span> <span style="color: #0000ff;">if</span> (form.encoding) {<span style="color: #008000;">//</span><span style="color: #008000;">选择编码方式</span>
<span style="color: #008080;">122</span> jQuery(form).attr('encoding', 'multipart/form-data'<span style="color: #000000;">);
</span><span style="color: #008080;">123</span> } <span style="color: #0000ff;">else</span><span style="color: #000000;"> {
</span><span style="color: #008080;">124</span> jQuery(form).attr('enctype', 'multipart/form-data'<span style="color: #000000;">);
</span><span style="color: #008080;">125</span> <span style="color: #000000;"> }
</span><span style="color: #008080;">126</span> jQuery(form).submit();<span style="color: #008000;">//</span><span style="color: #008000;">提交form表单</span>
<span style="color: #008080;">127</span> } <span style="color: #0000ff;">catch</span><span style="color: #000000;"> (e) {
</span><span style="color: #008080;">128</span> jQuery.handleError(s, xml, <span style="color: #0000ff;">null</span><span style="color: #000000;">, e);
</span><span style="color: #008080;">129</span> <span style="color: #000000;"> }
</span><span style="color: #008080;">130</span> jQuery('#' + frameId).load(uploadCallback); <span style="color: #008000;">//</span><span style="color: #008000;">ajax 请求从服务器加载数据，同时传入回调函数</span>
<span style="color: #008080;">131</span> <span style="color: #0000ff;">return</span> { abort: <span style="color: #0000ff;">function</span><span style="color: #000000;"> () { } };
</span><span style="color: #008080;">132</span> <span style="color: #000000;"> },
</span><span style="color: #008080;">133</span> uploadHttpData: <span style="color: #0000ff;">function</span> (r, type) { <span style="color: #0000ff;">var</span> data = !<span style="color: #000000;">type;
</span><span style="color: #008080;">134</span> data = type == "xml" || data ? r.responseXML : r.responseText; <span style="color: #008000;">//</span><span style="color: #008000;"> If the type is "script", eval it in global context</span>
<span style="color: #008080;">135</span> <span style="color: #0000ff;">if</span> (type == "script"<span style="color: #000000;">)
</span><span style="color: #008080;">136</span> jQuery.globalEval(data); <span style="color: #008000;">//</span><span style="color: #008000;"> Get the JavaScript object, if JSON is used.</span>
<span style="color: #008080;">137</span> <span style="color: #0000ff;">if</span> (type == "json"<span style="color: #000000;">)
</span><span style="color: #008080;">138</span> eval("data = " + data); <span style="color: #008000;">//</span><span style="color: #008000;"> evaluate scripts within html</span>
<span style="color: #008080;">139</span> <span style="color: #0000ff;">if</span> (type == "html"<span style="color: #000000;">)
</span><span style="color: #008080;">140</span> jQuery("<div>").html(data).evalScripts(); <span style="color: #0000ff;">return</span><span style="color: #000000;"> data;
</span><span style="color: #008080;">141</span> <span style="color: #000000;"> }
</span><span style="color: #008080;">142</span> })
</div>
<p> </p>
<p> </p>
<p>3。php代码</p>
<div class="cnblogs_code">
<pre class="brush:php;toolbar:false"><span style="color: #008080;"> 1</span> <span style="color: #000000;">php
</span><span style="color: #008080;"> 2</span> <span style="color: #008000;">//</span><span style="color: #008000;">print_r($_FILES);
</span><span style="color: #008080;"> 3</span> <span style="color: #008000;">//echo json_encode(print_r($_FILES));</span>
<span style="color: #008080;"> 4</span>
<span style="color: #008080;"> 5</span> <span style="color: #008000;">/*</span><span style="color: #008000;">*
</span><span style="color: #008080;"> 6</span> <span style="color: #008000;"> * 生成唯一字符串
</span><span style="color: #008080;"> 7</span> <span style="color: #008000;"> * @return string
</span><span style="color: #008080;"> 8</span> <span style="color: #008000;">*/</span>
<span style="color: #008080;"> 9</span> <span style="color: #0000ff;">function</span><span style="color: #000000;"> getUniName(){
</span><span style="color: #008080;"> 10</span> <span style="color: #0000ff;">return</span> <span style="color: #008080;">md5</span>(<span style="color: #008080;">uniqid</span>(<span style="color: #008080;">microtime</span>(<span style="color: #0000ff;">true</span>),<span style="color: #0000ff;">true</span><span style="color: #000000;">));
</span><span style="color: #008080;"> 11</span> <span style="color: #000000;">}
</span><span style="color: #008080;"> 12</span>
<span style="color: #008080;"> 13</span> <span style="color: #008000;">/*</span><span style="color: #008000;">*
</span><span style="color: #008080;"> 14</span> <span style="color: #008000;"> * 得到文件的扩展名
</span><span style="color: #008080;"> 15</span> <span style="color: #008000;"> * @param string $filename
</span><span style="color: #008080;"> 16</span> <span style="color: #008000;"> * @return string
</span><span style="color: #008080;"> 17</span> <span style="color: #008000;">*/</span>
<span style="color: #008080;"> 18</span> <span style="color: #0000ff;">function</span> getExt(<span style="color: #800080;">$filename</span><span style="color: #000000;">){
</span><span style="color: #008080;"> 19</span> <span style="color: #0000ff;">return</span> <span style="color: #008080;">strtolower</span>(<span style="color: #008080;">end</span>(<span style="color: #008080;">explode</span>(".",<span style="color: #800080;">$filename</span><span style="color: #000000;">)));
</span><span style="color: #008080;"> 20</span> <span style="color: #000000;">}
</span><span style="color: #008080;"> 21</span>
<span style="color: #008080;"> 22</span> <span style="color: #008000;">/*</span><span style="color: #008000;">*
</span><span style="color: #008080;"> 23</span> <span style="color: #008000;"> * 构建上传文件信息
</span><span style="color: #008080;"> 24</span> <span style="color: #008000;"> * @return array
</span><span style="color: #008080;"> 25</span> <span style="color: #008000;">*/</span>
<span style="color: #008080;"> 26</span>
<span style="color: #008080;"> 27</span> <span style="color: #0000ff;">function</span><span style="color: #000000;"> buildInfo(){
</span><span style="color: #008080;"> 28</span> <span style="color: #0000ff;">if</span>(!<span style="color: #800080;">$_FILES</span><span style="color: #000000;">){
</span><span style="color: #008080;"> 29</span> <span style="color: #0000ff;">return</span><span style="color: #000000;"> ;
</span><span style="color: #008080;"> 30</span> <span style="color: #000000;"> }
</span><span style="color: #008080;"> 31</span> <span style="color: #800080;">$i</span>=0<span style="color: #000000;">;
</span><span style="color: #008080;"> 32</span> <span style="color: #0000ff;">foreach</span>(<span style="color: #800080;">$_FILES</span> <span style="color: #0000ff;">as</span> <span style="color: #800080;">$v</span><span style="color: #000000;">){
</span><span style="color: #008080;"> 33</span> <span style="color: #008000;">//</span><span style="color: #008000;">单文件</span>
<span style="color: #008080;"> 34</span> <span style="color: #0000ff;">if</span>(<span style="color: #008080;">is_string</span>(<span style="color: #800080;">$v</span>['name'<span style="color: #000000;">])){
</span><span style="color: #008080;"> 35</span> <span style="color: #800080;">$files</span>[<span style="color: #800080;">$i</span>]=<span style="color: #800080;">$v</span><span style="color: #000000;">;
</span><span style="color: #008080;"> 36</span> <span style="color: #800080;">$i</span>++<span style="color: #000000;">;
</span><span style="color: #008080;"> 37</span> }<span style="color: #0000ff;">else</span><span style="color: #000000;">{
</span><span style="color: #008080;"> 38</span> <span style="color: #008000;">//</span><span style="color: #008000;">多文件</span>
<span style="color: #008080;"> 39</span> <span style="color: #0000ff;">foreach</span>(<span style="color: #800080;">$v</span>['name'] <span style="color: #0000ff;">as</span> <span style="color: #800080;">$key</span>=><span style="color: #800080;">$val</span><span style="color: #000000;">){
</span><span style="color: #008080;"> 40</span> <span style="color: #800080;">$files</span>[<span style="color: #800080;">$i</span>]['name']=<span style="color: #800080;">$val</span><span style="color: #000000;">;
</span><span style="color: #008080;"> 41</span> <span style="color: #800080;">$files</span>[<span style="color: #800080;">$i</span>]['size']=<span style="color: #800080;">$v</span>['size'][<span style="color: #800080;">$key</span><span style="color: #000000;">];
</span><span style="color: #008080;"> 42</span> <span style="color: #800080;">$files</span>[<span style="color: #800080;">$i</span>]['tmp_name']=<span style="color: #800080;">$v</span>['tmp_name'][<span style="color: #800080;">$key</span><span style="color: #000000;">];
</span><span style="color: #008080;"> 43</span> <span style="color: #800080;">$files</span>[<span style="color: #800080;">$i</span>]['error']=<span style="color: #800080;">$v</span>['error'][<span style="color: #800080;">$key</span><span style="color: #000000;">];
</span><span style="color: #008080;"> 44</span> <span style="color: #800080;">$files</span>[<span style="color: #800080;">$i</span>]['type']=<span style="color: #800080;">$v</span>['type'][<span style="color: #800080;">$key</span><span style="color: #000000;">];
</span><span style="color: #008080;"> 45</span> <span style="color: #800080;">$i</span>++<span style="color: #000000;">;
</span><span style="color: #008080;"> 46</span> <span style="color: #000000;"> }
</span><span style="color: #008080;"> 47</span> <span style="color: #000000;"> }
</span><span style="color: #008080;"> 48</span> <span style="color: #000000;"> }
</span><span style="color: #008080;"> 49</span> <span style="color: #0000ff;">return</span> <span style="color: #800080;">$files</span><span style="color: #000000;">;
</span><span style="color: #008080;"> 50</span> <span style="color: #000000;">}
</span><span style="color: #008080;"> 51</span> <span style="color: #0000ff;">function</span> uploadFile(<span style="color: #800080;">$path</span>="uploads",<span style="color: #800080;">$allowExt</span>=<span style="color: #0000ff;">array</span>("gif","jpeg","png","jpg","wbmp"),<span style="color: #800080;">$maxSize</span>=2097152,<span style="color: #800080;">$imgFlag</span>=<span style="color: #0000ff;">true</span><span style="color: #000000;">){
</span><span style="color: #008080;"> 52</span> <span style="color: #0000ff;">if</span>(!<span style="color: #008080;">file_exists</span>(<span style="color: #800080;">$path</span>)){<span style="color: #008000;">//</span><span style="color: #008000;">判断是否有$path文件夹，没有则创建</span>
<span style="color: #008080;"> 53</span> <span style="color: #008080;">mkdir</span>(<span style="color: #800080;">$path</span>,0777,<span style="color: #0000ff;">true</span>);<span style="color: #008000;">//</span><span style="color: #008000;">0777表示最大权限</span>
<span style="color: #008080;"> 54</span> <span style="color: #000000;"> }
</span><span style="color: #008080;"> 55</span> <span style="color: #800080;">$i</span>=0<span style="color: #000000;">;
</span><span style="color: #008080;"> 56</span> <span style="color: #800080;">$files</span>=<span style="color: #000000;">buildInfo();
</span><span style="color: #008080;"> 57</span> <span style="color: #0000ff;">if</span>(!(<span style="color: #800080;">$files</span>&&<span style="color: #008080;">is_array</span>(<span style="color: #800080;">$files</span><span style="color: #000000;">))){
</span><span style="color: #008080;"> 58</span> <span style="color: #0000ff;">return</span><span style="color: #000000;"> ;
</span><span style="color: #008080;"> 59</span> <span style="color: #000000;"> }
</span><span style="color: #008080;"> 60</span> <span style="color: #0000ff;">foreach</span>(<span style="color: #800080;">$files</span> <span style="color: #0000ff;">as</span> <span style="color: #800080;">$file</span><span style="color: #000000;">){
</span><span style="color: #008080;"> 61</span> <span style="color: #0000ff;">if</span>(<span style="color: #800080;">$file</span>['error']===UPLOAD_ERR_OK){<span style="color: #008000;">//</span><span style="color: #008000;">就是0</span>
<span style="color: #008080;"> 62</span> <span style="color: #800080;">$ext</span>=getExt(<span style="color: #800080;">$file</span>['name'<span style="color: #000000;">]);
</span><span style="color: #008080;"> 63</span> <span style="color: #008000;">//</span><span style="color: #008000;">检测文件的扩展名</span>
<span style="color: #008080;"> 64</span> <span style="color: #0000ff;">if</span>(!<span style="color: #008080;">in_array</span>(<span style="color: #800080;">$ext</span>,<span style="color: #800080;">$allowExt</span><span style="color: #000000;">)){
</span><span style="color: #008080;"> 65</span> <span style="color: #0000ff;">exit</span>("非法文件类型"<span style="color: #000000;">);
</span><span style="color: #008080;"> 66</span> <span style="color: #000000;"> }
</span><span style="color: #008080;"> 67</span> <span style="color: #008000;">//</span><span style="color: #008000;">校验是否是一个真正的图片类型</span>
<span style="color: #008080;"> 68</span> <span style="color: #0000ff;">if</span>(<span style="color: #800080;">$imgFlag</span><span style="color: #000000;">){
</span><span style="color: #008080;"> 69</span> <span style="color: #0000ff;">if</span>(!<span style="color: #008080;">getimagesize</span>(<span style="color: #800080;">$file</span>['tmp_name'<span style="color: #000000;">])){
</span><span style="color: #008080;"> 70</span> <span style="color: #0000ff;">exit</span>("不是真正的图片类型"<span style="color: #000000;">);
</span><span style="color: #008080;"> 71</span>
<span style="color: #008080;"> 72</span> }<span style="color: #0000ff;">else</span><span style="color: #000000;">{
</span><span style="color: #008080;"> 73</span> <span style="color: #800080;">$file</span>["filesize"]=<span style="color: #008080;">getimagesize</span>(<span style="color: #800080;">$file</span>['tmp_name'<span style="color: #000000;">]);
</span><span style="color: #008080;"> 74</span> <span style="color: #008000;">//</span><span style="color: #008000;">把文件信息付给$file 传到前台返回时数组
</span><span style="color: #008080;"> 75</span> <span style="color: #008000;"> //如 [720, 1280, 2, "width="720" height="1280"", 8, 3, "image/jpeg"]</span>
<span style="color: #008080;"> 76</span> <span style="color: #000000;"> }
</span><span style="color: #008080;"> 77</span> <span style="color: #000000;"> }
</span><span style="color: #008080;"> 78</span> <span style="color: #008000;">//</span><span style="color: #008000;">上传文件的大小</span>
<span style="color: #008080;"> 79</span> <span style="color: #0000ff;">if</span>(<span style="color: #800080;">$file</span>['size']><span style="color: #800080;">$maxSize</span><span style="color: #000000;">){
</span><span style="color: #008080;"> 80</span> <span style="color: #0000ff;">exit</span>("上传文件过大"<span style="color: #000000;">);
</span><span style="color: #008080;"> 81</span> <span style="color: #000000;"> }
</span><span style="color: #008080;"> 82</span> <span style="color: #0000ff;">if</span>(!<span style="color: #008080;">is_uploaded_file</span>(<span style="color: #800080;">$file</span>['tmp_name'<span style="color: #000000;">])){
</span><span style="color: #008080;"> 83</span> <span style="color: #0000ff;">exit</span>("不是通过HTTP POST方式上传上来的"<span style="color: #000000;">);
</span><span style="color: #008080;"> 84</span> <span style="color: #000000;"> }
</span><span style="color: #008080;"> 85</span> <span style="color: #800080;">$filename</span>=getUniName().".".<span style="color: #800080;">$ext</span>;<span style="color: #008000;">//</span><span style="color: #008000;">改文件重新命名</span>
<span style="color: #008080;"> 86</span> <span style="color: #800080;">$destination</span>=<span style="color: #800080;">$path</span>."/".<span style="color: #800080;">$filename</span><span style="color: #000000;">;
</span><span style="color: #008080;"> 87</span> <span style="color: #0000ff;">if</span>(<span style="color: #008080;">move_uploaded_file</span>(<span style="color: #800080;">$file</span>['tmp_name'], <span style="color: #800080;">$destination</span><span style="color: #000000;">)){
</span><span style="color: #008080;"> 88</span> <span style="color: #800080;">$file</span>['name']=<span style="color: #800080;">$filename</span><span style="color: #000000;">;
</span><span style="color: #008080;"> 89</span> <span style="color: #800080;">$file</span>['path_name']=<span style="color: #800080;">$destination</span><span style="color: #000000;">;
</span><span style="color: #008080;"> 90</span> <span style="color: #0000ff;">unset</span>(<span style="color: #800080;">$file</span>['tmp_name'],<span style="color: #800080;">$file</span>['size'],<span style="color: #800080;">$file</span>['type']);<span style="color: #008000;">//</span><span style="color: #008000;">去除不需要传给的信息</span>
<span style="color: #008080;"> 91</span> <span style="color: #800080;">$uploadedFiles</span>[<span style="color: #800080;">$i</span>]=<span style="color: #800080;">$file</span><span style="color: #000000;">;
</span><span style="color: #008080;"> 92</span> <span style="color: #800080;">$i</span>++<span style="color: #000000;">;
</span><span style="color: #008080;"> 93</span> <span style="color: #000000;"> }
</span><span style="color: #008080;"> 94</span> }<span style="color: #0000ff;">else</span><span style="color: #000000;">{
</span><span style="color: #008080;"> 95</span> <span style="color: #0000ff;">switch</span>(<span style="color: #800080;">$file</span>['error'<span style="color: #000000;">]){
</span><span style="color: #008080;"> 96</span> <span style="color: #0000ff;">case</span> 1:
<span style="color: #008080;"> 97</span> <span style="color: #800080;">$mes</span>="超过了配置文件上传文件的大小";<span style="color: #008000;">//</span><span style="color: #008000;">UPLOAD_ERR_INI_SIZE</span>
<span style="color: #008080;"> 98</span> <span style="color: #0000ff;">break</span><span style="color: #000000;">;
</span><span style="color: #008080;"> 99</span> <span style="color: #0000ff;">case</span> 2:
<span style="color: #008080;">100</span> <span style="color: #800080;">$mes</span>="超过了表单设置上传文件的大小"; <span style="color: #008000;">//</span><span style="color: #008000;">UPLOAD_ERR_FORM_SIZE</span>
<span style="color: #008080;">101</span> <span style="color: #0000ff;">break</span><span style="color: #000000;">;
</span><span style="color: #008080;">102</span> <span style="color: #0000ff;">case</span> 3:
<span style="color: #008080;">103</span> <span style="color: #800080;">$mes</span>="文件部分被上传";<span style="color: #008000;">//</span><span style="color: #008000;">UPLOAD_ERR_PARTIAL</span>
<span style="color: #008080;">104</span> <span style="color: #0000ff;">break</span><span style="color: #000000;">;
</span><span style="color: #008080;">105</span> <span style="color: #0000ff;">case</span> 4:
<span style="color: #008080;">106</span> <span style="color: #800080;">$mes</span>="没有文件被上传1111";<span style="color: #008000;">//</span><span style="color: #008000;">UPLOAD_ERR_NO_FILE</span>
<span style="color: #008080;">107</span> <span style="color: #0000ff;">break</span><span style="color: #000000;">;
</span><span style="color: #008080;">108</span> <span style="color: #0000ff;">case</span> 6:
<span style="color: #008080;">109</span> <span style="color: #800080;">$mes</span>="没有找到临时目录";<span style="color: #008000;">//</span><span style="color: #008000;">UPLOAD_ERR_NO_TMP_DIR</span>
<span style="color: #008080;">110</span> <span style="color: #0000ff;">break</span><span style="color: #000000;">;
</span><span style="color: #008080;">111</span> <span style="color: #0000ff;">case</span> 7:
<span style="color: #008080;">112</span> <span style="color: #800080;">$mes</span>="文件不可写";<span style="color: #008000;">//</span><span style="color: #008000;">UPLOAD_ERR_CANT_WRITE;</span>
<span style="color: #008080;">113</span> <span style="color: #0000ff;">break</span><span style="color: #000000;">;
</span><span style="color: #008080;">114</span> <span style="color: #0000ff;">case</span> 8:
<span style="color: #008080;">115</span> <span style="color: #800080;">$mes</span>="由于PHP的扩展程序中断了文件上传";<span style="color: #008000;">//</span><span style="color: #008000;">UPLOAD_ERR_EXTENSION</span>
<span style="color: #008080;">116</span> <span style="color: #0000ff;">break</span><span style="color: #000000;">;
</span><span style="color: #008080;">117</span> <span style="color: #000000;"> }
</span><span style="color: #008080;">118</span> <span style="color: #0000ff;">echo</span> <span style="color: #800080;">$mes</span><span style="color: #000000;">;
</span><span style="color: #008080;">119</span> <span style="color: #000000;"> }
</span><span style="color: #008080;">120</span> <span style="color: #000000;"> }
</span><span style="color: #008080;">121</span> <span style="color: #0000ff;">return</span> <span style="color: #800080;">$uploadedFiles</span><span style="color: #000000;">;
</span><span style="color: #008080;">122</span> <span style="color: #000000;">};
</span><span style="color: #008080;">123</span>
<span style="color: #008080;">124</span> <span style="color: #800080;">$rows</span>=uploadFile(<span style="color: #800080;">$path</span>="uploads",<span style="color: #800080;">$allowExt</span>=<span style="color: #0000ff;">array</span>("gif","jpeg","png","jpg","wbmp"),<span style="color: #800080;">$maxSize</span>=2097152,<span style="color: #800080;">$imgFlag</span>=<span style="color: #0000ff;">true</span><span style="color: #000000;">);
</span><span style="color: #008080;">125</span>
<span style="color: #008080;">126</span> <span style="color: #0000ff;">echo</span> json_encode(<span style="color: #800080;">$rows</span>);
uploadFile($path="uploads",$allowExt=array("gif","jpeg","png","jpg","wbmp"),$maxSize=2097152,$imgFlag=true);
这段php代码可以更改的可以上传其他文件和大小限制。getimagesize是判断是否为病毒文件更改后缀。
上述代码直接复制即可完成图片和用户数据的同时上传。
返回结果：[{"name":"d032a4ee7e957d956c8af0039d7e3085.jpg","error":0,"filesiz":{"0":720,"1":1280,"2":2,"3":"width=\"720\" height=\"1280\"","bits":8,"channels":3,"mime":"image\/jpeg"},"path_name":"uploads\/d032a4ee7e957d956c8af0039d7e3085.jpg"}]
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