Login.php
<table width="300" border="0" align="center" cellpadding="0" cellspacing="1" bgcolor="#CCCCCC"><tr><form name="form1" method="post" action="checklogin.php"><td><table width="100%" border="0" cellpadding="3" cellspacing="1" bgcolor="#FFFFFF"><tr><td colspan="3"><strong>Member Login </strong></td></tr><tr><td width="78">Username</td><td width="6">:</td><td width="294"><input name="myusername" type="text" id="myusername"></td></tr><tr><td>Password</td><td>:</td><td><input name="mypassword" type="text" id="mypassword"></td></tr><tr><td> </td><td> </td><td><input type="submit" name="Submit" value="Login"></td></tr></table></td></form></tr></table> Cek login.php
<?php
$host="localhost"; // Host name
$username=""; // Mysql username
$password=""; // Mysql password
$db_name="test"; // Database name
$tbl_name="members"; // Table name
// Connect to server and select databse.
mysql_connect("$host", "$username", "$password")or die("cannot connect");
mysql_select_db("$db_name")or die("cannot select DB");
// username dan password yang dikirim dari form login
$myusername=$_POST['myusername'];
$mypassword=$_POST['mypassword'];
// Untuk melindungi MySQL injection (http://us.php.net/mysql_real_escape_string)
$myusername = stripslashes($myusername);
$mypassword = stripslashes($mypassword);
$myusername = mysql_real_escape_string($myusername);
$mypassword = mysql_real_escape_string($mypassword);
$sql="SELECT * FROM $tbl_name WHERE username='$myusername' and password='$mypassword'";
$result=mysql_query($sql);
// Mysql_num_row is counting table row
$count=mysql_num_rows($result);
// If result matched $myusername and $mypassword, table row must be 1 row
if($count==1){
// daftarkan $myusername, $mypassword dan diarahkan ke file "login_success.php"
session_register("myusername");
session_register("mypassword");
header("location:login_success.php");
}
else {
echo "Wrong Username or Password";
}
?>
$host="localhost"; // Host name
$username=""; // Mysql username
$password=""; // Mysql password
$db_name="test"; // Database name
$tbl_name="members"; // Table name
// Connect to server and select databse.
mysql_connect("$host", "$username", "$password")or die("cannot connect");
mysql_select_db("$db_name")or die("cannot select DB");
// username dan password yang dikirim dari form login
$myusername=$_POST['myusername'];
$mypassword=$_POST['mypassword'];
// Untuk melindungi MySQL injection (http://us.php.net/mysql_real_escape_string)
$myusername = stripslashes($myusername);
$mypassword = stripslashes($mypassword);
$myusername = mysql_real_escape_string($myusername);
$mypassword = mysql_real_escape_string($mypassword);
$sql="SELECT * FROM $tbl_name WHERE username='$myusername' and password='$mypassword'";
$result=mysql_query($sql);
// Mysql_num_row is counting table row
$count=mysql_num_rows($result);
// If result matched $myusername and $mypassword, table row must be 1 row
if($count==1){
// daftarkan $myusername, $mypassword dan diarahkan ke file "login_success.php"
session_register("myusername");
session_register("mypassword");
header("location:login_success.php");
}
else {
echo "Wrong Username or Password";
}
?>
Kode
Php baru
<?php
ob_start();
$host="localhost"; // Host name
$username=""; // Mysql username
$password=""; // Mysql password
$db_name="test"; // Database name
$tbl_name="members"; // Table name
// Connect to server and select databse.
mysql_connect("$host", "$username", "$password")or die("cannot connect");
mysql_select_db("$db_name")or die("cannot select DB");
// Define $myusername and $mypassword
$myusername=$_POST['myusername'];
$mypassword=$_POST['mypassword'];
// To protect MySQL injection (more detail about MySQL injection)
$myusername = stripslashes($myusername);
$mypassword = stripslashes($mypassword);
$myusername = mysql_real_escape_string($myusername);
$mypassword = mysql_real_escape_string($mypassword);
$sql="SELECT * FROM $tbl_name WHERE username='$myusername' and password='$mypassword'";
$result=mysql_query($sql);
// Mysql_num_row is counting table row
$count=mysql_num_rows($result);
// If result matched $myusername and $mypassword, table row must be 1 row
if($count==1){
// Register $myusername, $mypassword and redirect to file "login_success.php"
session_register("myusername");
session_register("mypassword");
header("location:login_success.php");
}
else {
echo "Wrong Username or Password";
}
ob_end_flush();
?>
ob_start();
$host="localhost"; // Host name
$username=""; // Mysql username
$password=""; // Mysql password
$db_name="test"; // Database name
$tbl_name="members"; // Table name
// Connect to server and select databse.
mysql_connect("$host", "$username", "$password")or die("cannot connect");
mysql_select_db("$db_name")or die("cannot select DB");
// Define $myusername and $mypassword
$myusername=$_POST['myusername'];
$mypassword=$_POST['mypassword'];
// To protect MySQL injection (more detail about MySQL injection)
$myusername = stripslashes($myusername);
$mypassword = stripslashes($mypassword);
$myusername = mysql_real_escape_string($myusername);
$mypassword = mysql_real_escape_string($mypassword);
$sql="SELECT * FROM $tbl_name WHERE username='$myusername' and password='$mypassword'";
$result=mysql_query($sql);
// Mysql_num_row is counting table row
$count=mysql_num_rows($result);
// If result matched $myusername and $mypassword, table row must be 1 row
if($count==1){
// Register $myusername, $mypassword and redirect to file "login_success.php"
session_register("myusername");
session_register("mypassword");
header("location:login_success.php");
}
else {
echo "Wrong Username or Password";
}
ob_end_flush();
?>
Buat
file login_success.php.
// Cek jika session tidak terdaftar , redirect ke halaman utama. // Letakkan kode ini di bagian pertama halaman web anda. <? session_start();if(!session_is_registered(myusername)){header("location:main_login.php");}?><html><body>
Buat
file logout.php
// Letakkan kode ini di bagian pertama halaman web anda.
<?
session_start();
session_destroy();
?>
<?
session_start();
session_destroy();
?>
Kode
Login Enkripsi
// username and password sent from form $myusername=$_POST['myusername']; $mypassword=$_POST['mypassword']; // encrypt password $encrypted_mypassword=md5($mypassword);$sql="SELECT * FROM $tbl_name WHERE username='$myusername' and password='$encrypted_mypassword";$result=mysql_query($sql); 