PHP无刷新上传文件

PHP中文网asal: 2016-05-25 17:13:20921semak imbas

PHP无刷新上传文件实现代码，使用php的朋友可以参考下。

index.html

<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(&#39;processing&#39;).innerHTML = &#39;loding...&#39;; 
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(&#39;processing&#39;).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

<?php 
sleep(2); 
$fileTypes = array(&#39;jpg&#39;,&#39;png&#39;,&#39;gif&#39;,&#39;bmp&#39;); 
$result = null; 
$uploadDir = &#39;./upfiles&#39;; 
$maxSize = 1 * pow(2,20); 
if ($_SERVER[&#39;REQUEST_METHOD&#39;] == &#39;POST&#39; && isset($_POST[&#39;sub&#39;])) { 
$myfile = $_FILES[&#39;myfile&#39;]; 
$myfileType = substr($myfile[&#39;name&#39;], strrpos($myfile[&#39;name&#39;], ".") + 1); 
if ($myfile[&#39;size&#39;] > $maxSize) { 
$result = 1; 
} else if (!in_array($myfileType, $fileTypes)) { 
$result = 2; 
} elseif (is_uploaded_file($myfile[&#39;tmp_name&#39;])) { 
$toFile = $uploadDir . &#39;/&#39; . $myfile[&#39;name&#39;]; 
if (@move_uploaded_file($myfile[&#39;tmp_name&#39;], $toFile)) { 
$result = 0; 
} else { 
$result = -1; 
} 
} else { 
$result = 1; 
} 
} 
?> 
<script type="text/javascript"> 
window.top.window.stopUpload(<?php echo $result; ?>); 
</script>

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