Compare user input to flat file data

Posted on 16th Feb 2014 07:03 pm by admin

Help...Am a complete newbie to programming so my code is prolly quite long. Am trying to verify a users details entered into a login form against details stored in an existing flat file.
No matter what I input, I get "not registered", even if it does match.
What have I done wrong? I have spent 3 LOOng afternoons trying to nut this out..now am going nuts....

<?php

if ($_POST['submit']=="submit")
{
$errormessage = "";
if (empty($_POST['userName']) ||empty($_POST['password']))
{
$errormessage = "<p>Please enter a user name and password</p>";
}
else
{
$userName=trim($_POST['userName']);
$password=trim($_POST['password']);

// check user name and password
$nameFlag=false;
$passwordFlag=false;

$fp = fopen($_SERVER['DOCUMENT_ROOT']."/toys/users.txt","r" );

while (!feof($fp))
{
$line=fgets($fp,100);

($userName== $line? $nameFlag=true : $nameFlag=false);

($password==$line? $passwordFlag=true : $passwordFlag=false);

}

fclose($fp);


if($nameFlag && $passwordFlag==true)
{
$foundFlag= true;
}
else
{
$foundFlag=false;
}
($foundFlag==true?$welcome= "Welcome ".$userName." you are now logged in":$sorry= "Sorry you are not registered");

}


}


?>
// my html form below
<form method="post" action="<?=$_SERVER['PHP_SELF']?>" >
<fieldset class="outline">
<h3>Registered customers</h3>
<label>User Name:</label>
<input type="text" class="login" value="" name="userName" id="userName" />
<label>Password:</label>
<input type="text" class="login" value="" name="password" id="password"/>
<br />
<br />
<input type="submit" value="submit" name="submit" id="submit"/>
<br />
<?=$errormessage?>
<br />
</fieldset>
</form>

Your Answer:

Login to answer

Other forums

selection tool on raster image
Hi!
I have to implement in my app a selection tool which lets users to select region of any shape

Multidimensional $_POST
Hello

How to get a single array from array of array (2 - dimension).
For example I have a

UL and LI Add Form
The idea I want here is when the user click on a character name from the drop down select bar at the

image upload script not working with png
The basic process of this php code is to take the submitted file, convert it to a small JPG thumbnai

Staff Induction System - No idea where to go from here!!!
Hi there, I'm pretty new to PHP and Mysql so could really do with being pointed in the right directi

Read from forum
Haven't written anything forever and I would like to get back.
What I'm trying to do is getting t

Multi-image upload problems
Lets see if I can get some help on this one. Can anyone show me what I am doing wrong here. I'm just

upload only text files
hi guys i want to upload only text like like (pdf,note pad and ofiice files) so can any one please t

Add weeks in a query?
I have a SQL that summarizes the quantity per week. The weeks that has no value does not exist in th

Session is not saving
I am not trying to do anything too fancy, I am just trying to get some $_SESSION data to save and us