Need help in php

doforumda · January 30, 2010

hi

i have a register page. what i want in this page is when user enters his username and password and if that user does exist or he does not provide username or password then i want that php script to change the color border of that username or password div tags. how this can be done?

my code is here

register.html

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Register</title>
</head>

<body>
<form id="form1" name="form1" method="post" action="register.php">
  <div>
    <label>username:</label>
      <input type="text" name="username" id="username" />
   </div> 
  <div>
    <label>password:</label>
      <input type="text" name="password" id="password" />
  </div> 
  <div>
      <input type="submit" name="submit" id="submit" value="Register" />
    </div>
</form>
</body>
</html>

register.php

<?php
$submit = $_POST['submit'];

$username = strip_tags($_POST['username']);
$password = strip_tags($_POST['password']);

if($submit){
if($username&&$password){
	$connect = mysql_connect("localhost","user","pass");
   		mysql_select_db("db");
   		$emailcheck = mysql_query("SELECT username FROM users WHERE username='$username'");
   		$count = mysql_num_rows($emailcheck);
   				
   		if($count == 0){
		$reg = mysql_query("INSERT INTO users VALUES (' ','$username','$password')");
		echo "You register successfully.";
   		}
}
else
	echo "Please Fill in username and password fields.";
}
?>

please help

jl5501 · January 30, 2010

Your best solution is to have the html and the php in the same file, and then you can use the error loop in your code to set variables to control the colour of the the div tags

doforumda · January 30, 2010

Your best solution is to have the html and the php in the same file, and then you can use the error loop in your code to set variables to control the colour of the the div tags

how can use error loop for this purpose?

you can modify my code

jl5501 · January 30, 2010

This should give you the idea of what you need to do, based on your code.

Remember that there is just one file now - register.php

<?php
$bordercol = '#000';
if(isset($_POST['submit']))
{
$submit = $_POST['submit'];
$username = strip_tags($_POST['username']);
$password = strip_tags($_POST['password']);
if($submit)
{
	if($username&&$password)
	{
		$connect = mysql_connect("localhost","user","pass");
		mysql_select_db("db");
		$emailcheck = mysql_query("SELECT username FROM users WHERE username='$username'");
		$count = mysql_num_rows($emailcheck);
		if($count == 0)
		{
			$reg = mysql_query("INSERT INTO users VALUES (' ','$username','$password')");
			echo "You register successfully.";
		}
	}
	else
	{
		echo "Please Fill in username and password fields.";
		$bordercol = '#660';
	}
}
}
?><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Register</title>
</head>
<body>
<form id="form1" name="form1" method="post" action="register.php">
<div style="border:1px solid <?php echo $bordercol;?>">
<label>username:</label>
<input type="text" name="username" id="username" />
</div>
<div style="border:1px solid <?php echo $bordercol;?>">
<label>password:</label>
<input type="text" name="password" id="password" />
</div>
<div>
<input type="submit" name="submit" id="submit" value="Register" />
</div>
</form>
</body>
</html>

doforumda · January 30, 2010

This should give you the idea of what you need to do, based on your code.

Remember that there is just one file now - register.php

<?php
$bordercol = '#000';
if(isset($_POST['submit']))
{
$submit = $_POST['submit'];
$username = strip_tags($_POST['username']);
$password = strip_tags($_POST['password']);
if($submit)
{
	if($username&&$password)
	{
		$connect = mysql_connect("localhost","user","pass");
		mysql_select_db("db");
		$emailcheck = mysql_query("SELECT username FROM users WHERE username='$username'");
		$count = mysql_num_rows($emailcheck);
		if($count == 0)
		{
			$reg = mysql_query("INSERT INTO users VALUES (' ','$username','$password')");
			echo "You register successfully.";
		}
	}
	else
	{
		echo "Please Fill in username and password fields.";
		$bordercol = '#660';
	}
}
}
?><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Register</title>
</head>
<body>
<form id="form1" name="form1" method="post" action="register.php">
<div style="border:1px solid <?php echo $bordercol;?>">
<label>username:</label>
<input type="text" name="username" id="username" />
</div>
<div style="border:1px solid <?php echo $bordercol;?>">
<label>password:</label>
<input type="text" name="password" id="password" />
</div>
<div>
<input type="submit" name="submit" id="submit" value="Register" />
</div>
</form>
</body>
</html>

well this works but there is a problem with this. when i do not write username it changes the color of both divs what i want is when one is thing is not provided then it should change that praticular boarder color not both.

doforumda · January 30, 2010

now i change my code but it still has the same problem

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Register</title>
</head>
<body>
<?php
$bordercol = '#09C';
if(isset($_POST['submit']))
{
   $submit = $_POST['submit'];
   $username = strip_tags($_POST['username']);
   $password = strip_tags($_POST['password']);
   if($submit)
   {
      if($username)
      {
	  if($password) {
         	$connect = mysql_connect("localhost","user","pass");
         	mysql_select_db("db");
         	$emailcheck = mysql_query("SELECT username FROM users WHERE username='$username'");
         	$count = mysql_num_rows($emailcheck);
         	if($count == 0)
         	{
            	$reg = mysql_query("INSERT INTO users VALUES (' ','$username','$password')");
            	echo "You register successfully.";
         	}
	  }
		else {
			echo "Please Fill in password";
         		$bordercol = '#F00';
		}
      }
      else
      {
         echo "Please Fill in usernam";
         $bordercol = '#F00';
      }
   }
}
?>
<form id="form1" name="form1" method="post" action="register.php">
<div style="border:1px solid <?php echo $bordercol;?>">
   <label>username:</label>
   <input type="text" name="username" id="username" />
</div>
<div style="border:1px solid <?php echo $bordercol;?>">
   <label>password:</label>
   <input type="text" name="password" id="password" />
</div>
<div>
   <input type="submit" name="submit" id="submit" value="Register" />
</div>
</form>
</body>
</html>

jl5501 · January 30, 2010

in that case you need a different variable for each div and set those variables according to which div you want to change the colour of

jl5501 · January 30, 2010

One other thing to point out.

Although you can easily change the colour on the div that is wrong, normally, for security reasons, you would not indicate which of username or password was wrong.

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