Example: 1
<?php
session_start();
$username = $_POST['username'];
$password = $_POST['password'];
if($username && $password)
{
$connect = mysql_connect("localhost","root","admin") or die("Couldn't connect!");
mysql_select_db("phplogin") or die("Couldn't find db");
$query= mysql_query("SELECT * From users WHERE username='$username'");
$numrows = mysql_num_rows($query);
if ($numrows!=0)
{
//code to login
while ($row = mysql_fetch_assoc($query))
{
$dbusername = $row['username'];
$dbpassword = $row['password'];
}
if($username==$dbusername&&$password==$dbpassword)
{
echo "You're in!";
}
else
echo "Incorrect password!";
}
else
die("That user does't exist!");
}
else
die("Please enter username and Password!");
?>
Example: 2
<?php
session_start();
$username = $_POST['username'];
$password = $_POST['password'];
if($username && $password)
{
$connect = mysql_connect("localhost","root","admin") or die("Couldn't connect!");
mysql_select_db("phplogin") or die("Couldn't find db");
$query= mysql_query("SELECT * From users WHERE username='$username'");
$numrows = mysql_num_rows($query);
if ($numrows!=0)
{
//code to login
while ($row = mysql_fetch_assoc($query))
{
$dbusername = $row['username'];
$dbpassword = $row['password'];
}
if($username==$dbusername&&$password==$dbpassword)
{
echo "You're in! <a href='member.php'>Click</a> here to enter the member page ";
$_SESSION['username']==$dbusername;
}
else
echo "Incorrect password!";
}
else
die("That user does't exist!");
}
else
die("Please enter username and Password!");
?>
Example 3
<?php
session_start();
$username = $_POST['username'];
$password = $_POST['password'];
if($username && $password)
{
$connect = mysql_connect("localhost","root","admin") or die("Couldn't connect!");
mysql_select_db("phplogin") or die("Couldn't find db");
$query= mysql_query("SELECT * From users WHERE username='$username'");
$numrows = mysql_num_rows($query);
if ($numrows!=0)
{
//code to login
while ($row = mysql_fetch_assoc($query))
{
$dbusername = $row['username'];
$dbpassword = $row['password'];
}
if($username==$dbusername&&$password==$dbpassword)
{
echo "You're in! <a href='member.php'>Click</a> here to enter the member page ";
$_SESSION['username']=$username;
}
else
echo "Incorrect password!";
}
else
die("That user does't exist!");
}
else
die("Please enter username and Password!");
?>
Example 4
logout.php
<?php
session_start();
session_destroy();
echo "You've been logged out. <a href='User_Login3_2.php'>Click here</a> to return.";
?>
Example 5
member.php
<?php
session_start();
if($_SESSION['username'])
echo "Welcome, " .$_SESSION['username']."!<br><a href='logout.php'>Logout</a><br> ";
else
die ("You must be logged in!");
?>
Example 6
<html>
<form action='login8' method='POST'>
Username: <input type='text' name='username'><br>
Password: <input type='password' name='password'><br>
<input type='submit' name='Log in'>
</form>
</html>
Example 7
<html>
<form action='login9' method='POST'>
Username: <input type='text' name='username'><br>
Password: <input type='password' name='password'><br>
<input type='submit' name='Log in'>
</form>
</html>
<?php
session_start();
$username = $_POST['username'];
$password = $_POST['password'];
if($username && $password)
{
$connect = mysql_connect("localhost","root","admin") or die("Couldn't connect!");
mysql_select_db("phplogin") or die("Couldn't find db");
$query= mysql_query("SELECT * From users WHERE username='$username'");
$numrows = mysql_num_rows($query);
if ($numrows!=0)
{
//code to login
while ($row = mysql_fetch_assoc($query))
{
$dbusername = $row['username'];
$dbpassword = $row['password'];
}
if($username==$dbusername&&$password==$dbpassword)
{
echo "You're in!";
}
else
echo "Incorrect password!";
}
else
die("That user does't exist!");
}
else
die("Please enter username and Password!");
?>
Example: 2
<?php
session_start();
$username = $_POST['username'];
$password = $_POST['password'];
if($username && $password)
{
$connect = mysql_connect("localhost","root","admin") or die("Couldn't connect!");
mysql_select_db("phplogin") or die("Couldn't find db");
$query= mysql_query("SELECT * From users WHERE username='$username'");
$numrows = mysql_num_rows($query);
if ($numrows!=0)
{
//code to login
while ($row = mysql_fetch_assoc($query))
{
$dbusername = $row['username'];
$dbpassword = $row['password'];
}
if($username==$dbusername&&$password==$dbpassword)
{
echo "You're in! <a href='member.php'>Click</a> here to enter the member page ";
$_SESSION['username']==$dbusername;
}
else
echo "Incorrect password!";
}
else
die("That user does't exist!");
}
else
die("Please enter username and Password!");
?>
Example 3
<?php
session_start();
$username = $_POST['username'];
$password = $_POST['password'];
if($username && $password)
{
$connect = mysql_connect("localhost","root","admin") or die("Couldn't connect!");
mysql_select_db("phplogin") or die("Couldn't find db");
$query= mysql_query("SELECT * From users WHERE username='$username'");
$numrows = mysql_num_rows($query);
if ($numrows!=0)
{
//code to login
while ($row = mysql_fetch_assoc($query))
{
$dbusername = $row['username'];
$dbpassword = $row['password'];
}
if($username==$dbusername&&$password==$dbpassword)
{
echo "You're in! <a href='member.php'>Click</a> here to enter the member page ";
$_SESSION['username']=$username;
}
else
echo "Incorrect password!";
}
else
die("That user does't exist!");
}
else
die("Please enter username and Password!");
?>
Example 4
logout.php
<?php
session_start();
session_destroy();
echo "You've been logged out. <a href='User_Login3_2.php'>Click here</a> to return.";
?>
Example 5
member.php
<?php
session_start();
if($_SESSION['username'])
echo "Welcome, " .$_SESSION['username']."!<br><a href='logout.php'>Logout</a><br> ";
else
die ("You must be logged in!");
?>
Example 6
<html>
<form action='login8' method='POST'>
Username: <input type='text' name='username'><br>
Password: <input type='password' name='password'><br>
<input type='submit' name='Log in'>
</form>
</html>
Example 7
<html>
<form action='login9' method='POST'>
Username: <input type='text' name='username'><br>
Password: <input type='password' name='password'><br>
<input type='submit' name='Log in'>
</form>
</html>
1 comment:
nice coding........
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