php实现图片的简单上传功能~
<?php
if($_SERVER['REQUEST_METHOD']=='POST'){
if (is_uploaded_file($_FILES['upfile']['tmp_name'])){ //判断文件是否上传
$upfile=($_FILES['upfile']);
$name=$upfile['name'];
$type=$upfile['type'];
$size=$upfile['size'];
$tmp_name=$upfile['tmp_name'];
$error=$upfile['error'];
//限制文件格式只可为：pjpeg png gif jpeg 格式！
switch($type){
case 'p_w_picpath/pjpeg': $ok=1;
break;
case'p_w_picpath/png' : $ok=1;
break;
case 'p_w_picpath/gif' :$ok=1;
break;
case 'p_w_picpath/jpeg' :$ok=1;
break;
}
if($ok && $error=='0'){
move_uploaded_file($tmp_name,'p_w_picpaths/'.$name);
echo "上传成功！";
} else{
echo "非法文件！"; //非图片格式，给出提示
}
}
}
unset($upfile,$error,$name,$ok,$size,$tmp_name,$type);
?>
<!doctype>
<html>
<head>
<title>上传图片</title>
</head>
<body>
<form action="" method="post" enctype="multipart/form-data" name="upform">
上传文件：<input type="file" name="upfile">
<input type="submit" value="上传"><br>
</form>
</body>
</html>