small login system

PHP Code

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Average Score	5.7
Scores Submitted	3
Date Added	May 16, 2005
Last Updated	Sep 04, 2008

Introduction

This isn't a big fancy login system, but someone asked me to write them a small loging system and when I was done, I realized that it wasn't that big so I decided to put it on here...

There are 5 files, they are: cons.php, log.php, login.php, reg.php, and register.php
And you must create two tables in your MySQL database (Those will be at the end)

NOTE: I will try to release a better version soon on this site also, just post what you want improved!

Grab the Code

<?
// Constants page, cons.php
define("DB_SERVER", "localhost"); // Server
define("DB_USER", "username"); // Username
define("DB_PASS", "userpass"); // User pass
define("DB_NAME", "database"); // Database
mysql_connect(DB_SERVER, DB_USER, DB_PASS) or die(mysql_error()); // Connection
mysql_select_db(DB_NAME) or die(mysql_error()); // Selection of database
?>

<?
// Register Process, register.php

// Includes the Constants
include("cons.php");

// sets all the variables needed to register
$pass = $_GET['pass']; // set $pass as the first pass
$pass2 = $_GET['pass2']; // sets $pass2 as the re-entered pass
$name = $_GET['name']; // sets $name as the name chosen

// Processing the data
if ($name) { // if $name is set
$re = mysql_num_rows(mysql_query("SELECT * FROM user WHERE user='$name'"));
  if ($re >= 1) { // If the username exists
    $error = "* Username already in use"; // Set $error
	$err = 1; // set $err as 1
  }
  else { // user doesn't exist
    if ($pass == $pass2) { // If the passwords match
      $pass = md5($pass); // Encodes the pass
      mysql_query("INSERT INTO user (user, pass) VALUES ('$name','$pass')"); // Creates the user
	  $reg = "Registration successful!"; // Sets $reg as a sucess message
	  header("Location: log.php?reg=$reg"); // Re-locates to the login screen
    }
    else { // The passwords don't match
      $error = "* Passwords different!"; // Sets $error
	  $err = 2; // Sets $err as 2
    }
  }
}
else { // If $name isn't set
  $error = "* Enter a username"; // sets $error
  $err = 1; // sets $err as 1
}
if ($err >= 1) { // if $err is greater than or equal to 1
header("Location: reg.php?error=$error&err=$err"); // re-locates to the registration page with the error!
}
?>

<?
// Register script, reg.php

// Includes the Constants
include("cons.php");

// The registration form
$error = $_GET['error'];
$err = $_GET['err'];
?>
<form action="register.php">
<input type="text" name="name"> Username <font size="-2" color="#FF0000">
<? 
if ($err == 1) { 
echo $error;
} 
?></font><br>
<input type="password" name="pass"> Password <font size="-2" color="#FF0000">
<? 
if ($err == 2) { 
echo $error;
} 
?></font><br>
<input type="password" name="pass2"> Re-type Password<br>
<input type="submit" value="Register!">
</form>

<? 
// This is the main part, log.php

// Constants
include("cons.php");
$ip = $_SERVER['REMOTE_ADDR']; // Gets the users IP address
$brow = $_SERVER['HTTP_USER_AGENT']; // Gets the users Browser
$reg = $_GET['reg']; // Sets the $reg variable

// Makes sure the user is logged in
$r = mysql_query("SELECT * FROM active_users WHERE ip='$ip' AND browser='$brow'");
$re = mysql_fetch_array($r);
$user = $re['name']; // Sets $user as the users name

// If the user exists
if ($user) {
  echo "Welcome, ".$user."<br>"; // Welcome message
  echo "<a href=\"login.php?out=yes&user=$user\">Logout</a>"; // Logout button
  echo "<br><br><br>";
  
  /****************************************************/
  /***** This shows how many users are active and *****/
  /*********** it shows their names too! **************/
  /****************************************************/
  
  $ro = mysql_query("SELECT * FROM active_users");
  $active = mysql_num_rows($ro); // sets $active as the number of active users
  echo "Currently active users: ".$active."<br>"; // lists the number of active users
  
  // Actually lists the users
  while ($ra = mysql_fetch_array($ro)) {
    $name = $ra['name']; // Sets $name as the users' names
	
	// Lists the users names
    if ($i != ($active - 1)) { // if $i doesn't equal $active minus 1
      echo $name." | ";
    }
    else {
      echo $name;
    }
	
  $i++; // increase temp variable
  }
  /******************************************/
  /********** End of active users! **********/
  /******************************************/
}
else {
if ($reg) {
echo $reg;
}
/********** Show the login form ************/
?>
<form action="login.php">
<input type="text" name="name"> Username<br>
<input type="password" name="pass"> Password<br>
<input type="submit" value="Login!">
</form>
<?
/*********** End of login form ************/
}
?>

<?
// This is the login part, login.php

// includes the constants
include("cons.php");
$name = $_GET['name']; // sets the username
$pass = $_GET['pass']; // sets the password
$r = mysql_query("SELECT * FROM user WHERE user='$name'");

// logout section
$logout = $_GET['out']; // makes sure their logging out
$user = $_GET['user']; // gets the username
if ($logout == "yes") {
mysql_query("DELETE FROM active_users WHERE name='$user'"); // Logs them out
}

// Main Login part
while ($ro = mysql_fetch_array($r)) {
$pass2 = $ro['pass']; // sets $pass2 as the actual password
  if (md5($pass) == $pass2) { // makes sure password entered is the same as $pass2
    $user = $_SESSION['username'] = $name; // starts the session
	$ip = $_SERVER['REMOTE_ADDR']; // Users ip address
	$brow = $_SERVER['HTTP_USER_AGENT'];
	$time = time(); // gets the time
	// Makes the user an active user!
	mysql_query("DELETE FROM active_users WHERE name='$user'");
    mysql_query("INSERT INTO active_users (name,timestamp,ip,browser) VALUES ('$user','$time','$ip','$brow')");
  }
}

// Returns the user after logging in.
header("Location: log.php");
?>

/***************************************************/
/*************** The two mysql tables *****************/
/***************************************************/

DROP TABLE IF EXISTS user;
CREATE TABLE IF NOT EXISTS `user` (
  id int(11) NOT NULL auto_increment,
  `user` varchar(32) NOT NULL default '',
  pass varchar(32) NOT NULL default '',
  PRIMARY KEY  (id)
) ENGINE=HEAP;

DROP TABLE IF EXISTS active_users;
CREATE TABLE IF NOT EXISTS active_users (
  id int(11) NOT NULL auto_increment,
  name varchar(32) NOT NULL default '',
  `timestamp` varchar(50) NOT NULL default '',
  ip varchar(20) NOT NULL default '',
  browser varchar(150) NOT NULL default '',
  PRIMARY KEY  (id)
) ENGINE=HEAP;

Comments

(17) RSS

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log2

Comments: 52

PHP Snippet: small login system
Posted on May 17, 2005 6:33 pm

that was me by the way...

DavorsLounge

Comments: 1

PHP Snippet: small login system
Posted on May 18, 2005 8:41 am

hey are you interested in helping me out with some php ? if so email me davor@davorslounge.com and ill get back to ya :)

enexif

Comments: 21

PHP Snippet: small login system
Posted on May 18, 2005 4:33 pm

You should probably upload it to your server and just send the link... I wouldn't mind looking at it..

log2

Comments: 52

PHP Snippet: small login system
Posted on May 18, 2005 5:52 pm

ok here's a direct link to it: http://www.drealms.aboho.com/dloads/Login.zip

EBP

Comments: 2

PHP Snippet: small login system
Posted on Jun 3, 2005 2:50 pm

Blade0

Comments: 1

PHP Snippet: small login system
Posted on Jun 22, 2005 10:15 pm

Yer i want it if uv got it

Kittypaws

Comments: 2

PHP Snippet: small login system
Posted on Jul 3, 2005 12:00 am

post it.. id like to tak a look at it if still available anonymous

log2

Comments: 52

PHP Snippet: small login system
Posted on Jul 3, 2005 9:49 pm

Like I said Kittypaws, you can download it from my site: http://www.drealms.aboho.com/dloads/Login.zip

Kittypaws

Comments: 2

PHP Snippet: small login system
Posted on Jul 16, 2005 9:40 am

Link = Dead

F*U*R*B*Y*

Comments: 573

PHP Snippet: small login system
Posted on Jan 27, 2006 9:00 pm

link is dead :(

F*U*R*B*Y*

Comments: 573

PHP Snippet: small login system
Posted on Jan 30, 2006 3:09 am

log2 why don't you just post it considering the link is dead :)

Hewitt

Comments: 3

PHP Snippet: small login system
Posted on May 14, 2006 8:36 am

http://www.drealms.aboho.com/dloads/Login.zip is down too

Hewitt

Comments: 3

PHP Snippet: small login system
Posted on Jun 16, 2006 1:02 pm

This login dont work for me...
Can some 1 put it all in diff files like it is on there
and make it a zip and upload it to your website and send me link please

Pibb

Comments: 30

PHP Snippet: small login system
Posted on Jun 16, 2006 5:15 pm

I think that we need every user that finds enough time to post on this section saying "http://www.drealms.aboho.com/dloads/Login.zip <- This link is dead". Cause im sure that needs more clarification.

F*U*R*B*Y*

Comments: 573

PHP Snippet: small login system
Posted on Jun 16, 2006 10:17 pm

well if you look in the php scripting section, i did a tutorial on a php login system, use that and adjust it to your needs, i'm attempting the pm system now

log2

Comments: 52

PHP Snippet: small login system
Posted on Jul 27, 2006 5:17 am

Ok well I've got the file made up, but where do you want me to post it.. Hawk is there a certain section?

F*U*R*B*Y*

Comments: 573

PHP Snippet: small login system
Posted on Sep 1, 2006 11:13 pm

well maybe getting free webhosting. and giving us a link from there...

log2

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