php利用iframe实现无刷新文件上传功能的代码
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<div class="codetitle"><a style="CURSOR: pointer" data="19608" class="copybut" id="copybut19608" onclick="doCopy('code19608')"> 代码如下:
<div class="codebody" id="code19608">
无刷新<a href="https://www.jb51.cc/tag/shangchuan/" target="_blank" class="keywords">上传</a><a href="https://www.jb51.cc/tag/wenjian/" target="_blank" class="keywords">文件</a> <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;
}
<div style="text-align:center">
<div id="processing">
<form action="upload.
PHP教程" method="post" enctype="multipart/form-data" target="form-target" onsubmit="startUpload();">
<iframe style="width:0; height:0; border:0;" name="form-target">
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; ?>);
