index.html
复制代码 代码如下:
<html>
<head>
<title>无刷新上传文件</title>
<meta Content-type="text/html" charset="utf-8" />
<script type="text/javascript">
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" 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>
upload.php
复制代码 代码如下:
<?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>
