TA的每日心情 | 奋斗 2019-10-18 11:20 |
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签到天数: 678 天 [LV.9]以坛为家II
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上传原理很简单就是利用表单的打开方式为iframe的id名,这样就可以在当前页面的iframe打来了,实现文件上传,再利用js返回上传结果,下面直接上代码:- <html>
- <head>
- <title>无刷新上传文件</title>
- <meta Content-type="text/html" charset="utf-8" />
- <script type="text/网页特效">
- function startUpload() {
- document.getElementById('processing').innerHTML = 'loding...';
- return true;
- }
- function stopUpload(rel){
- var msg;
- switch (rel) {
- case 0:
- msg = "上传成功";
- break;
- case 1:
- msg = "上传的文件超过限制";
- break;
- case 2:
- msg = "只能上传图片文件";
- break;
- default:
- msg = "上传文件失败";
- }
- document.getElementById('processing').innerHTML = msg;
- }
- </script>
- </head>
- <body>
- <div style="text-align:center">
- <div id="processing"></div>
- <form action="upload.php教程" method="post" enctype="multipart/form-data" target="form-target" onsubmit="startUpload();">
- <input type="hidden" name="MAX_FILE_SIZE" value="1000000" />
- <input type="file" name="myfile" />
- <input type="submit" name="sub" value="upload" />
- </form>
- <iframe style="width:0; height:0; border:0;" name="form-target"></iframe>
- </div>
- </body>
- </html>
- php代码
- <?php
- sleep(2);
- $fileTypes = array('jpg','png','gif','bmp');
- $result = null;
- $uploadDir = './upfiles';
- $maxSize = 1 * pow(2,20);
- if ($_SERVER['REQUEST_METHOD'] == 'POST' && isset($_POST['sub'])) {
- $myfile = $_FILES['myfile'];
- $myfileType = substr($myfile['name'], strrpos($myfile['name'], ".") + 1);
- if ($myfile['size'] > $maxSize) {
- $result = 1;
- } else if (!in_array($myfileType, $fileTypes)) {
- $result = 2;
- } elseif (is_uploaded_file($myfile['tmp_name'])) {
- $toFile = $uploadDir . '/' . $myfile['name'];
- if (@move_uploaded_file($myfile['tmp_name'], $toFile)) {
- $result = 0;
- } else {
- $result = -1;
- }
- } else {
- $result = 1;
- }
- }
- ?>
- <script type="text/javascript">
- window.top.window.stopUpload(<?php echo $result; ?>);
- </script>
复制代码 |
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