[users@httpd] Form Login Script

[Christopher Deeley <ch...@gmail.com>]

I am trying to use the following script to verify my users against a text
file where each line is in the format username:password.

This is my script below. It worked fine until I started adding more users to
the text file and it wouldn't recognise them. It will only show as a valid
user if it matches the last entry in the text file.


<?PHP
session_start();
$usr = $_POST['username'];
$pass = $_POST['password'];

$filename = 'users.txt';
$fp = fopen( $filename, 'r' );
$file_contents = fread( $fp, filesize( $filename ) );
fclose( $fp );
$lines = explode ( "\n", $file_contents );
foreach ( $lines as $line ){
list( $username, $password ) = explode( ':', $line );
}

if($username !== $usr){
echo 'invalid username';
die;
}

if ( ( $usr == $username ) &&
             ( $pass == $password ) ) {
echo 'Valid User. Login Successful';
}
else{
echo 'Invalid Password';

}

?>

Re: [users@httpd] Form Login Script

[Boysenberry Payne <bo...@humaniteque.com>]

Try:

<?php

session_start();

function response( $text ) {
	echo $text;
	return;
}


$bad_user = "Invalid User Name";
$bad_pass = "Invalid Password";
$good_log = "Valid User.  Login Successful";

$usr = $_POST['username'];
$pass = $_POST['password'];

$valid_match = "/([a-z0-9-_])+/i";

if( !preg_match( $valid_match, $usr ) ) {
	return response( $bad_user );
  } elseif( !preg_match( $valid_match, $pass ) ) {
	 return response( $bad_pass );
  }

$users = file_get_contents( "users.txt" );
$results = array();
$valid_match = "/($usr):($pass)?/";
if( preg_match( $valid_match, $users, $results ) ) {
	if( !$results[ 2 ] ) {
		return response( $bad_pass );
	} else {
		return response( $good_log );
	}
  } else {
	return response( $bad_user );
  }
?>


Boysenberry

boysenberrys.com | habitatlife.com | selfgnosis.com

On Dec 27, 2005, at 6:55 PM, Christopher Deeley wrote:

> I am trying to use the following script to verify my users against a 
> text file where each line is in the format username:password.
>  
> This is my script below. It worked fine until I started adding more 
> users to the text file and it wouldn't recognise them. It will only 
> show as a valid user if it matches the last entry in the text file.
>  
>
> <?PHP
> session_start();
> $usr = $_POST['username'];
> $pass = $_POST['password'];
>
> $filename = 'users.txt';
> $fp = fopen( $filename, 'r' );
> $file_contents = fread( $fp, filesize( $filename ) );
> fclose( $fp );
> $lines = explode ( "\n", $file_contents );
> foreach ( $lines as $line ){
> list( $username, $password ) = explode( ':', $line );
> }
>
> if($username !== $usr){
> echo 'invalid username';
> die;
> }
>
> if ( ( $usr == $username ) &&
>              ( $pass == $password ) ) {
> echo 'Valid User. Login Successful';
> }
> else{
> echo 'Invalid Password';
>
> }
>
> ?>
>
>  

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