html页面
<html> <head> </head> <body> <form action="8.php" method="post" enctype="multipart/form-data"> <input type="file" name="upfile"> <input type="submit" value="提交"> </form> </body> </html>
PHP上传页面
<?php
$path=__DIR__.‘\\‘;//路径
$fileArray=array(‘image/jpeg‘,‘image/png‘);//允许上传的文件类型
$type=$_FILES["upfile"]["type"];
$tmp_name=$_FILES["upfile"]["tmp_name"];
$size=$_FILES["upfile"]["size"];
$name=$_FILES["upfile"]["name"];
if (!in_array($type, $fileArray)) {
echo "<script>alert(‘只能上传JPG、PNG图片!!‘);history.back();</script>";
exit;
}
elseif ($size>2000000) {
echo "<script>alert(‘上传图片不能超过2M!!‘);history.back();</script>";
exit;
}
else{
if (!is_uploaded_file($tmp_name)) {
echo "<script>alert(‘上传临时文件失败!!‘);history.back();</script>";
}
else{
if (!is_dir($path."uploads")) {
mkdir($path.‘uploads‘);
}
if (!move_uploaded_file($tmp_name, $path.‘\\uploads\\‘.$name)) {
echo "<script>alert(‘移动文件失败!!‘);history.back();</script>";
}
else{
echo "<script>alert(‘上传成功!!‘);location.href=‘9.php?url=uploads/".$name."‘;</script>";
}
}
}
?>PHP图片显示页面
<?php $path=__DIR__."\\uploads\\"; $file=$_GET[‘url‘]; echo "<img src=‘".$file."‘/>"; ?>
原文：http://sr0517.blog.51cto.com/809286/1846411