CH13,p242.练习二，控制上传文件大小

<?php
if($_FILES['files']['name']==true){
$filesize=$_FILES['files']['size'];
if($filesize>1000000){
echo "对不起,您上传的文件超过规定的大小!!";
echo "<meta http-equiv=\"Refresh\" content=\"3;url=index.php\">将在3秒钟后返回前页...";
}else{
$path = './upfiles/'. $_FILES['files']['name'];
if (move_uploaded_file($_FILES['files']['tmp_name'],$path)) {
echo "上传成功!!";
echo "<meta http-equiv=\"Refresh\" content=\"3;url=index.php\">";
}else{
echo "文件上传失败!!";
echo "<meta http-equiv=\"Refresh\" content=\"3;url=index.php\">";
}
}
}
?>