php ajax无刷新上传图片实例代码

php ajax无刷新上传图片实例代码

将index.html和upload.php文件保存到支持php的空间的同级目录,测试运行即可

AJAX 客户端页面代码: index.html

<html>

<body>

<h1>Ajax file upload sample</h1><br/><input name="btn_send" type="button" value="上传测试"/>

<div id=result></div>

<PRE code"><SCRIPT LANGUAGE=JavaScript>

// 上传函数

function btn_send.onclick() {

data = ""

spliter = "-------7d8d733180846"

datadata = data + spliter + "rn"

datadata = data + "Content-Disposition: form-data; name="photofile"; filename="C:a.txt"rn"

// datadata = data + "Content-Type: image/pjpeg" + vbCrLf

datadata = data + "Content-Type: text/plain" + "rn" + "rn"

text = "My name is Wilson Lin."

postLength = text.length + data.length + 2 + spliter.length + 4

package = data + text + "rn" + spliter + "--rn"

alert(package)

// 把XML文档发送到Web服务器

var xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");

xmlhttp.open("POST","./upload.php",false);

xmlhttp.setRequestHeader("Content-Type", "multipart/form-data; boundary=-----7d8d733180846");

xmlhttp.setRequestHeader("Content-Length", postLength);

xmlhttp.send(package);

// 显示服务器返回的信息

result.innerHTML=xmlhttp.ResponseText;

}

</SCRIPT>

</PRE>

</body>

</html>

PHP服务器端代码: upload.php

<?php

// $_FILES['photofile']:是获得上传图片的数组

// $uploadfile:存放地址

$uploadfile = "D:/".$_FILES['photofile']['name'];

copy( $_FILES['photofile']['tmp_name'], $uploadfile );

echo "URL: <a href='http://localhost/".$_FILES['photofile']['name']."' target='_blank'>".$_FILES['photofile']['name']."</a><br/>";

?>

Upload successed!