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[jailaline]

<?php
session_start();
if (!session_is_registered("username")) {
   session_register("username");
if (!session_is_registered("password"))
    session_register("password");
 }
$con = mysql_connect("localhost","root","1234");
$username_log=$_POST["username"];
$passname_log=$_POST["password"];

if (!$con)
  {
           die('Could not connect: ' . mysql_error());
  }
 else {
         print"connect database";
           echo "<br />";
mysql_select_db("sendfile", $con);
$sql_command = " SELECT  * FROM user_student  where username = '$username_log' and password='$password_log' ";
$result = mysql_query($sql_command);
$num_rows = mysql_num_rows($result);

 if ($num_rows ==1 ) {
    header("location: main_student.php");
       echo "password your  ok!!!!!";
       new_pop_window();
 }
  else {
  header("location: notlogin.php");
    echo "password not ok!!!";
  }   //   end   else
  }

   mysql_close($con);
   session_unregister("username");
   session_unregister("password");
   ?>

[Kobsoft]

โค๊ด:

 :-[ สดนะคับมั่วๆ เอาถ้าเป็นผมเขียนง่ายๆ

<?
session_start();
session_register("username");
include_once("Connect File Here");
$sql = mysql_query(" SELECT * FROM user_student WHERE (username='$_????[username_log]' && password='$_????[password_log]') LIMIT 0, 1", Connect Var );
$F = mysql_fetch_array($sql);
$numrow = mysql_num_rows($sql);

if ($numrow>0){
   $_SESSION["username"] = $F[username]; // or = strtolower($F[username]);
   new_pop_window();
   $reURL = "main_student.php";
   header("HTTP/1.1 301 Moved Permanently");
   header("Location: $reURL");
}
else{
   $reURL = "notlogin.php";
   header("HTTP/1.1 301 Moved Permanently");
   header("Location: $reURL");
}
mysql_close(????);
?>

[jailaline]

ขอบคุณมากๆนะค่ะ คุณ kobsoft