warning while using $_get

General PHP Help
#1

Hi,
Respected members, i am a beginner in PHP…
I am making a registration which works fine but on the page i got this error because i use $_Get

Notice: Undefined index: e in D:\xampp\htdocs\login\login.php on line 20

actually the logic i used is, login page checks if the cookie is empty it goes to the check page which checks if the user put the wrong password & cookie is also empty then a variable send a value by get method & the login page get the value by id & it shows an error…

ALL is work fine but when i open the login page first time…i mean, before submitting form it show me an above warning…This also happen when i used $_Post method.

Remeber i am using these logic to familiarize with PHP functions, as i mentioned above,i know there will be also many other ways, but i just want to familiarize my self with all the techniques of PHP.

Kindly help me to sort out this problem.

#2

Hi there,

So we can better help you with your problem, please post your code so we may pinpoint the problem.

Thanks.

#3

Thank you respected friend,
& i solve the warning visibility issue by hiding the warnings…

but until now i dont under stand why $_GET make a problem…
following is the code file for login

<?php ini_set('display_errors', 0);

if(!empty($_COOKIE[‘user’])&& !empty($_COOKIE[‘pwd’])){
header(“Location:checkuser.php”);
}
?>

<title>Login Page</title>
<link href="style.css" rel="stylesheet" type="text/css" />
<?php

[size=10pt]$verify = $_GET[‘e’]; //this line shows an error[/size]
if($verify==2){
print "<table align=“center” class=“login-error”>

";
print “Sorry! we cant match user id & password, Kindly try again!”;
print “”;

}
?>

Login...

Welcome To The Login Page
user id:
password:
Remeber me
#4

Hi there,

I’m not sure if you are aware of this, but $_GET variables are collected from the URL (so to speak).

www.mysite.com?first=this&second=that

At the url above, $_GET[‘first’] contains “this” and $_GET[‘second’] contains “that”
If “&second=that” wasn’t in the URL, $_GET[‘second’] is not set (hence the error you are getting)

If the URL does indeed contain &e=something, let us know.

#5

yes respected friend i know this,
but i want to know, is there any way to solve this?
or any other alternate logic have to used…?

u can see in the code i use $_GET to verify the user…i do hide the warning by

ini_set(‘display_errors’, 0);
is it the the right way to do this?

Thanks for your reply firend:)

#6

You appear to be using numbers for your logic in the $verify variable.

You could try replacing that line that errors with this:
[php]$verify = (isset($_GET[‘e’]) && !empty($_GET[‘e’])) ? $_GET[‘e’] : 2; //If $_GET[‘e’] is set and not blank, take it’s value - if not, set $verify to 2[/php]

#7

Thankyou very much respected smooky for teach me:)

it work fine i use
$_GET[‘e’] : 1
so the default value is 1,now the normal page isn’t showing an error but if the user place wrong id & password value of get the value 2 then it will shows an error…!

Once again thankyou very much

#8

Good to hear - not a problem. Glad to have helped :smiley:

#9

thank you,
so can i ask another question? :wink:

#10

Sure, go ahead - hopefully I’ll be able to help with that one as well

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