<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <title> New Document </title> <meta charset="GBK"> <meta name="Author" content=""> <meta name="Keywords" content=""> <meta name="Description" content=""> </head> <body> <form method="get" action="fileSize.php"> <input type="text" name="file"> <br> <input type="submit" value="submit"> </form> </body> </html>
<?php
function GetFileSize($file)
{
if (file_exists($file))
{
return filesize($file);
}
else
{
return -1;
}
}
if(isset($_GET["file"]))
{
header("Content-type: text/plain; charset=gbk");
$file=$_GET["file"];
$a = GetFileSize($file);
print_r($a);
return;
}
else
{
echo -1;
}
?>
原文：http://www.cnblogs.com/sky20080101/p/6797668.html