How can I use PHP to create login-controlled web pages?

hi guys, any one can answer the Question... how create login-controlled web pages using PHP.

Thank u...

 

http://www.phpeasystep.com/phptu/6.html
bad example.

figure it out yourself.
It is rude to ask for exact code.

 

There are three easy steps to create a Login System First Create
1.Login.php

<?php
//session_start();
// set your infomation.
$dbhost='localhost' ;
$dbusername='root' ;
$dbuserpass='' ;
$dbname='userdb' ;
 
if (isset($_COOKIE['user' ])) {
echo "Welcome $_COOKIE[user]";
}else{
 
//connect to the mysql database server.
mysql_connect ($dbhost, $dbusername, $dbuserpass);
mysql_select_db($dbname) or die('Cannot select database' );
 
if ($_POST['username' ]) {
//did they supply a password and username
$username=$_POST['username' ];
$password=$_POST['password' ];
if ($password==NULL) {
echo "A password was not supplied";
}else{
$query = 
mysql_query("SELECT username,password FROM users WHERE username = '$username'") 
or die(mysql_error());
$data = mysql_fetch_array($query);
if($data['password' ] != $password) {
echo "The supplied login is incorrect";
}else{
$query = 
mysql_query("SELECT username,password FROM users WHERE username = '$username'") 
or die(mysql_error());
$row = mysql_fetch_array($query);
setcookie("user", "$username", time()+3600);
echo "";
}
}
}
?>
 
<form action="login.php" method="POST">
<table style="border: 1px solid #000000;">
<tbody>
<tr>
<td align="right">
Username:<input type="text" name="username" size="15" maxlength="25" /></td>
</tr>
<tr>
<td align="right">
Password:<input type="password" name="password" size="15" maxlength="25" /></td>
</tr>
<tr>
<td align="center"><input type="submit" value="Login" /></td>
</tr>
<tr>
<td align="center"><a href="register.php">Register Here</a></td>
</tr>
</tbody>
</table>
</form>

Code (markup):

Register.php

<?php // set your infomation.
$dbhost='localhost' ;
$dbusername='root' ;
$dbuserpass='' ; $dbname='userdb' ; // connect to the mysql database server. 
mysql_connect ($dbhost, $dbusername, $dbuserpass);
mysql_select_db($dbname) or die("Cannot select database"); 
//Are they just getting here or submitting their info? 
if (isset($_POST["username"])) { 
$username = $_POST["username"];
$password = $_POST["password"]; 
$cpassword = $_POST["cpassword"]; 
$email = $_POST["email"]; 
if($username==NULL|$password==NULL|$cpassword==NULL|$email==NULL) { 
echo "A field was left blank."; }
else{ //Do the passwords match? 
if($password!=$cpassword) { 
echo "Passwords do not match"; }
else{ //Has the username or email been used?
$checkuser = mysql_query("SELECT username FROM users WHERE username='$username'"); 
$username_exist = mysql_num_rows($checkuser); 
$checkemail = mysql_query("SELECT email FROM users WHERE email='$email'");
$email_exist = mysql_num_rows($checkemail); 
if ($email_existɬ|$username_existɬ) {
echo "The username or email is already in use"; }
else{ //Everything seems good, lets insert. 
$query = "INSERT INTO users (username, password, email) 
VALUES('$username','$password','$email')"; mysql_query($query)
 or die(mysql_error()); 
echo "The user $username has been successfully registered."; } }
 }
  } 
?>
<h1>Register</h1>
<form action="register.php" method="POST">
<table style="border: 1px solid #000000;">
<tbody>
<tr>
<td align="right">
Username:<input type="text" name="username" size="15" maxlength="25" /></td>
</tr>
<tr>
<td align="right">
Password:<input type="password" name="password" size="15" maxlength="25" /></td>
</tr>
<tr>
<td align="right">
Confirm Password:<input type="password" name="cpassword" size="15" maxlength="25" /></td>
</tr>
<tr>
<td align="right">
Email:<input type="text" name="email" size="15" maxlength="25" /></td>
</tr>
<tr>
<td align="center"><input type="submit" value="Register" /></td>
</tr>
<tr>
<td align="center"><a href="login.php">Login Here</a></td>
</tr>
</tbody>
</table>
</form>

Code (markup):

Lastmember.php

<?php $dbhost='localhost' ;
$dbusername='root' ;
$dbuserpass='' ;
$dbname='userdb' ;
 
//connect to the mysql database server.
mysql_connect ($dbhost, $dbusername, $dbuserpass);
mysql_select_db($dbname) or die('Cannot select database' );
 
$row1 = mysql_query("SELECT * FROM users ORDER BY uid DESC LIMIT 1") 
or die(mysql_error());
echo "$row1";
while($row=mysql_fetch_array($row1))
{
echo "
<h2>$row[username]</h2>
";
}
?>;
 
To check to see if someone is logged in use.
 
<?php
if (isset($_COOKIE['user' ])) {
echo "You are logged in: $_COOKIE['user'] Enjoy.";
} else{
echo "You are not logged in. <a href="register.php">Register here</a>";
?>;

Code (markup):

 

Below will work a treat, it's probably on of the most secure login scripts you'll find what with the advanced checking...

<?php
if (isset($_POST['submit'])) {
$password = "password";

if ($userpass != $password){
//let them login anyway
header("Location: account.php?message=woohoo");
}
else {
//let them login
header("Location: account.php?message=woohoo");
}
}
?>

<form method="post" action="#">
<label>Username</label> <input type="username"><br />
<label>Password</label> <input type="password"><br /><br />
<input type="submit" name="submit" value="Submit">
</form>

PHP:

Joking aside, ask for help not the solution.

 

woohoo! that'll definitely work a treat! LMAO








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