[PHP] Login script with MySQL

DoomGuard · 17-12-2006, 01:33 PM

Hey!

First of all, the MySQL code.

Code:

CREATE TABLE `members` (
`id` int(4) NOT NULL auto_increment,
`username` varchar(65) NOT NULL default '',
`password` varchar(65) NOT NULL default '',
PRIMARY KEY (`id`)
) TYPE=MyISAM AUTO_INCREMENT=2 ;

INSERT INTO `members` VALUES (1, 'Username', 'Password');

main_login.php

[html]<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>[/html]

checklogin.php

PHP Code:


			
<?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 and password sent from signup form 

$myusername=$_POST['myusername']; 

$mypassword=$_POST['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";

}

?>

login_success.php

PHP Code:


			
<?php // Check if session is not registered , redirect back to main page. 

// Put this code in first line of web page. 



session_start();

if(!session_is_registered(myusername)){

header("location:main_login.php");

}

?>



<html>

<body>

Login Successful

</body>

</html>

Logout.php

PHP Code:


			
<?php

// Put this code in first line of web page. 

session_start();

session_destroy();

?>

FOR PHP5 USERS -> checklogin.php

PHP Code:


			
<?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']; 



$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();

?>

army · 17-12-2006, 08:07 PM

Good script ... but what do you have to set like on top of every page?

(I know... but others, who don't know PHP that well won't. Please add in your topic

.)

Also, you should use the PHP-tags, instead of the CODE-tags:
[ php] [/ php]
(without the spaces)

addik · 18-12-2006, 06:27 AM

Can I see a live demo of this script. I want to to a see a live demo before I try it.

DoomGuard · 18-12-2006, 10:46 AM

sorry . but i dun have a live demo .. it just a very simple login script ..
and also thx army for helping me to edit the code tag into php tag ..
thank..

army · 18-12-2006, 01:58 PM

Here is a demo (hosted by me!):

http://styx.freehostia.com/login/main_login.php
----> Username: demo
----> Password: demo

Note, password isn't encrypted ... and the input field for the password is not hidden. If you want to make it hidden (******) you have to do this:

Chnage the following line in main_login.php: [HTML]<input name="mypassword" type="text" id="mypassword">[/HTML]
Into this: [HTML]<input name="mypassword" type="password" id="mypassword">[/HTML]

An example of this is here:
http://styx.freehostia.com/login/main_login2.php
----> Username: demo
----> Password: demo

babuks · 21-12-2006, 07:05 PM

very nice tutorial. Thanks for sharing.

charlesbw · 11-01-2007, 03:37 AM

can i intergrate this into a html site, without messing up the whole thing?

charlesbw · 11-01-2007, 04:02 AM

nice job, i just succesfully intergrated it into the site. How do i create a registration form for it and impose registeration restrictions to certain areas of the site?

Zeggy · 13-01-2007, 05:30 PM

To check if a user is logged in or not, you need to put this code on the top of the page:

PHP Code:


			
<?php
session_start();
if(!session_is_registered(myusername)){
header("location:main_login.php");
}
?>

charlesbw · 13-01-2007, 05:33 PM

thank you so very much

am gonna try that now

17-12-2006, 01:33 PM	#1 (permalink)
DoomGuard Senior Member Join Date: Nov 2006 Posts: 119	[PHP] Login script with MySQL Hey! First of all, the MySQL code. Code: CREATE TABLE `members` ( `id` int(4) NOT NULL auto_increment, `username` varchar(65) NOT NULL default '', `password` varchar(65) NOT NULL default '', PRIMARY KEY (`id`) ) TYPE=MyISAM AUTO_INCREMENT=2 ; INSERT INTO `members` VALUES (1, 'Username', 'Password'); main_login.php [html]<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>[/html] checklogin.php PHP Code: <?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 and password sent from signup form $myusername=$_POST['myusername']; $mypassword=$_POST['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"; } ?> login_success.php PHP Code: `<?php // Check if session is not registered , redirect back to main page. // Put this code in first line of web page. session_start(); if(!session_is_registered(myusername)){ header("location:main_login.php"); } ?> <html> <body> Login Successful </body> </html>` Logout.php PHP Code: `<?php // Put this code in first line of web page. session_start(); session_destroy(); ?>` FOR PHP5 USERS -> checklogin.php PHP Code: <?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']; $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(); ?>

17-12-2006, 08:07 PM	#2 (permalink)
army co-admin Join Date: Oct 2006 Location: Belgium Posts: 666	Re: [PHP] Login script with MySQL Good script ... but what do you have to set like on top of every page? (I know... but others, who don't know PHP that well won't. Please add in your topic .) Also, you should use the PHP-tags, instead of the CODE-tags: [ php] [/ php] (without the spaces)

18-12-2006, 06:27 AM	#3 (permalink)
addik Member Join Date: Oct 2006 Posts: 79	Re: [PHP] Login script with MySQL Can I see a live demo of this script. I want to to a see a live demo before I try it.

18-12-2006, 10:46 AM	#4 (permalink)
DoomGuard Senior Member Join Date: Nov 2006 Posts: 119	Re: [PHP] Login script with MySQL sorry . but i dun have a live demo .. it just a very simple login script .. and also thx army for helping me to edit the code tag into php tag .. thank..

18-12-2006, 01:58 PM	#5 (permalink)
army co-admin Join Date: Oct 2006 Location: Belgium Posts: 666	Re: [PHP] Login script with MySQL Here is a demo (hosted by me!): http://styx.freehostia.com/login/main_login.php ----> Username: demo ----> Password: demo Note, password isn't encrypted ... and the input field for the password is not hidden. If you want to make it hidden (******) you have to do this: Chnage the following line in main_login.php: [HTML]<input name="mypassword" type="text" id="mypassword">[/HTML] Into this: [HTML]<input name="mypassword" type="password" id="mypassword">[/HTML] An example of this is here: http://styx.freehostia.com/login/main_login2.php ----> Username: demo ----> Password: demo

21-12-2006, 07:05 PM	#6 (permalink)
babuks Senior Member Join Date: Nov 2006 Posts: 263	Re: [PHP] Login script with MySQL very nice tutorial. Thanks for sharing.

11-01-2007, 03:37 AM	#7 (permalink)
charlesbw Senior Member Join Date: Dec 2006 Posts: 214	Re: [PHP] Login script with MySQL can i intergrate this into a html site, without messing up the whole thing?

11-01-2007, 04:02 AM	#8 (permalink)
charlesbw Senior Member Join Date: Dec 2006 Posts: 214	Re: [PHP] Login script with MySQL nice job, i just succesfully intergrated it into the site. How do i create a registration form for it and impose registeration restrictions to certain areas of the site?

13-01-2007, 05:30 PM	#9 (permalink)
Zeggy Member Join Date: Nov 2006 Posts: 47	Re: [PHP] Login script with MySQL To check if a user is logged in or not, you need to put this code on the top of the page: PHP Code: `<?php session_start(); if(!session_is_registered(myusername)){ header("location:main_login.php"); } ?>`

13-01-2007, 05:33 PM	#10 (permalink)
charlesbw Senior Member Join Date: Dec 2006 Posts: 214	Re: [PHP] Login script with MySQL thank you so very much am gonna try that now

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