[SOLVED] CAnt rewrite a working script

xgd · July 10, 2009

Hello,

I made this login script from some book that uses cookies to log a registered user in. It consists of login.php, and 2 include files. It works, but the thing is i wanna rewrite it so that it is all one file (login.php) WITHOUT using custom functions in order to understand it better.

I have tried to rewrite it on my own but failed and cannot figure it out. can someone help out?

Here are the working scripts:

login_functions.inc.php

<?php

  function check_login($dbc, $email = '', $pass = '') {
  
  if (empty($email)) {
  
     $errors[] = "you didnt enter EMAIL<br />";
 }
 else {
 $e = trim($email);
 }

 if (empty($pass)) {

    $errors[] = "Didnt enter PASS<br />";
	}
	else {
	$p = trim($pass);
	}

	if (empty($errors)) {

	   $q = "SELECT user_id, first_name FROM users WHERE email='$e' AND pass=SHA1('$p')";
	   
	   $r = mysqli_query($dbc, $q);
	   
	   if (mysqli_num_rows($r) == 1) {
	   
	      $row = mysqli_fetch_array($r);
		  
		  return array(true, $row);
		  
		  } else {
		  echo "Youre not in the DB";
		  }
		  
		  }
		  
		  
		  return array(false, $errors);
		  }
		  ?>

login_page.inc.php


<?php

if (!empty($errors)) {

echo "The following errors occured<br />";

foreach ($errors as $msg) {
  
   echo $msg."<br />";
   }
   }
   
   
   ?>
   
   <h1>Login</h1>
   
   <form action="login.php" method="post">
   <p>Email address <input type="text" name="email" /></p>
   
   <p>Password <input type="text" name="pass" /></p>
   
   <p><input type="submit" name="submit" /></p>
   
   </form>

and login.php

<!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>Untitled Document</title>
</head>

<body>

<?php

if (@$_POST['submit']) {

   require_once('includes/login_functions.inc.php');
   
   require_once('db_connect.php');
   
   list ($check, $data) = check_login($dbc, $_POST['email'], $_POST['pass']);
   
   if ($check) {
   
      setcookie('user_id', $data['user_id']);
  
  setcookie('first_name', $data['first_name']);
  
  header("Location: index.php");
  
  exit();
  
  }
  
  else {
  $errors = $data;
  }
  
  }
  include('includes/login_page.inc.php');
  ?>
      









</body>
</html>

All of that works, but i would like to have it all in one file without custom funcstions as i have already said, so i tried to write it as:

<!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>Untitled Document</title>
</head>

<body>

<?php

if ($_POST['submit']) {

   require_once('db_connect.php');
   
   if (empty($_POST['email'])) {
   
      echo "didnt enter email";
  } else {
  $e = trim($_POST['email']);
  }
  
if (empty($_POST['pass'])) {

   echo "Didnt enter pass";
   } else {
   $p = trim($_POST['pass']);
   
   }
   
   
   if (@$e && @$p) {
   
      $q = "SELECT user_id, first_name FROM users WHERE email='$e' ANd pass=SHA1('$e')";
	  $r = mysqli_query($dbc, $q);
	  
	  if (mysqli_num_rows($r) == 1) {
	  
	     $row  = mysqli_fetch_array($r);

		 } else {
		 echo "youre not in the db";
		 }
		 }
		 }//end of if post submit
		  
		  
		 //How do i rewrite the following ?
		 $data = ($dbc, $_POST['email'], $_POST['pass']);

		  if ($data) {
   
      setcookie('user_id', $data['user_id']);
  
  setcookie('first_name', $data['first_name']);
  
  header("Location: index.php");
  
  exit();
  
  }
  
  ?>
  <h1>Login</h1>
   
   <form action="login.php" method="post">
   <p>Email address <input type="text" name="email" /></p>
   
   <p>Password <input type="text" name="pass" /></p>
   
   <p><input type="submit" name="submit" /></p>
   
   </form>

		    


		 ?>
</body>
</html>

But i messed up on line 49 (which i knew would happen :'( )

So can someone help me with this one ?

Thanks

radi8 · July 10, 2009

  <!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>Untitled Document</title>
</head>

<body>

<?php

if ($_POST['submit']) {

   require_once('db_connect.php');
   
   if (empty($_POST['email'])) {
   
      echo "didnt enter email";
     } else {
     $e = trim($_POST['email']);
     }
     
   if (empty($_POST['pass'])) {
   
      echo "Didnt enter pass";
      } else {
      $p = trim($_POST['pass']);
      
      }
      
      
      if (@$e && @$p) {
      
         $q = "SELECT user_id, first_name FROM users WHERE email='$e' ANd pass=SHA1('$e')";
        $r = mysqli_query($dbc, $q);
        
        if (mysqli_num_rows($r) == 1) {
        
           $row  = mysqli_fetch_array($r);
          
          } else {
          echo "youre not in the db";
          }
      }
   }//end of if post submit
           
           
   if (empty($email)) {
  
     $errors[] = "you didnt enter EMAIL<br />";
    }
   else {
    $e = trim($email);
   }
    
   if (empty($pass)) {
    
      $errors[] = "Didnt enter PASS<br />";
   }
   else {
       $p = trim($pass);
   }
      
   if (empty($errors)) {
  
     $q = "SELECT user_id, first_name FROM users WHERE email='$e' AND pass=SHA1('$p')";
     
     $r = mysqli_query($dbc, $q);
     
     if (mysqli_num_rows($r) == 1) {
     
        $row = mysqli_fetch_array($r);
       
       $data=array(true, $row);
       
     } else {
        echo "Youre not in the DB";
        $data= array(false, $errors);
     }
   }
            
           if ($data) {
   
      setcookie('user_id', $data['user_id']);
     
     setcookie('first_name', $data['first_name']);
     
     header("Location: index.php");
     
     exit();
     
     }
     
     ?>
     <h1>Login</h1>
   
   <form action="login.php" method="post">
   <p>Email address <input type="text" name="email" /></p>
   
   <p>Password <input type="text" name="pass" /></p>
   
   <p><input type="submit" name="submit" /></p>
   
   </form>
         
            
         
         
          ?>
</body>
</html>

xgd · July 10, 2009

This works man thanks a lot!

xgd · July 10, 2009

i will need to check something else on my own and then i will mark the topic as solved, thanks for letting me know.

As for code tags, i believe i used the right ones, if i did not then do correct me.

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[SOLVED] CAnt rewrite a working script

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