$admin _pw= "admin";//admin password
$uploaddir = "upload";//Upload Directory
Session_Start ();
if ($_get[' action ']== "GetCode")
{
Setcode ();
Exit ();
}
if ($_post[' password ']== $admin _pw && $_post[' yz ']==$_session[' Yzcode '])
{
$_session[' logined ']= $admin _pw;
}
if ($_get[' action ']== "logout")
{
$_session[' logined ']= "";
Header ("Location:". $_server[' php_self ');
Exit ();
}
if ($_session[' logined ']!= $admin _PW)
{
?>
<title>Please login</title>
}
Else
{
?>
<title>File Upload</title>
if ($_post[' ac ']== "upload")
{
$fileall =explode ('. ', $_files[' file ' [' name ']);
$filetype = $fileall [Count ($fileall)-1];
$filename = $uploaddir. " /". $_files[' file ' [' Name ']." _ ". Rand (1,999999999).". $filetype;
$fileexists =file_exists ($filename);
while ($fileexists ==true)
{
$filename = $uploaddir. " /". $_files[' file ' [' Name ']." _ ". Rand (1,999999999).". $filetype;
$fileexists =file_exists ($filename);
}
if (Move_uploaded_file ($_files["file"] ["Tmp_name"], $filename))
{
$url = "http://". $_server[' server_name '].$_server[' Request_uri '];
echo "File:". $filename. "Upload Successful!
File Address:Test ";
}
Else
{
echo "File". $filename. " Upload failed! ";
}
}
?>
Sign Out
}
function Setcode ()
{
Header ("Content-type:image/gif");
$border = 0; Whether to border 1 to: 0 do not
$how = 4; Verify number of code bits
$w = $how *15; Picture width
$h = 20; Picture height
$fontsize = 5; Font size
$alpha = "ABCDEFGHIJKMNOPQRSTUVWXYZ"; Verification Code Content 1: Letters
$number = "0123456789"; Verification Code Content 2: Digital
$randcode = ""; Validation code string initialization
Srand (Double) microtime () *1000000); Initialize random number Seed
$im = Imagecreate ($w, $h); Create a validation picture
$bgcolor = Imagecolorallocate ($im, 255, 255, 255); Set Background color
Imagefill ($im, 0, 0, $bgcolor); Fill background color
if ($border)
{
$black = imagecolorallocate ($im, 0, 0, 0); Set Border color
Imagerectangle ($im, 0, 0, $w-1, $h-1, $black);//Draw Border
}
for ($i =0; $i < $how; $i + +)
{
$alpha _or_number = Mt_rand (0, 1); Letters or numbers?
$str = $alpha _or_number? $alpha: $number;
$which = Mt_rand (0, strlen ($str)-1); which character to take
$code = substr ($str, $which, 1); Take character
$j =! $i? 4: $j +15; Draw character position
$color 3 = imagecolorallocate ($im, Mt_rand (0,100), Mt_rand (0,100), Mt_rand (0,100)); Character Color
Imagechar ($im, $fontsize, $j, 3, $code, $color 3); Paint characters
$randcode. = $code; Add a CAPTCHA string to a bit
}
$_session[' yzcode '] = $randcode;
Imagegif ($im);
Imagedestroy ($im);
}
?>
|
