Hi, I'm getting started with PHP and I'm stuck with a beginner's error

Question

<form action="site.php" method="get">
 Name: <input type="text" name="username">
 <input type="submit">
</form>

<?php
echo $_GET["username"]
 ?>

Notice: Undefined variable: name in C:\xampp\htdocs\phplessons\index.php on line 26

After filling in the answer will be displayed. Object was not found!

Thank you in advance for every answer.

You have to first test that the form has been submitted. The first time the page loads, it wont have been submitted and $_GET['userbame''] will not exist. — RiggsFolly, Apr 08 '20 at 16:36

Elman Huseynov · Answer 1 · 2020-04-08T16:38:56.533

1

Your variable will be created only after submitting the form. That is why in the code you need to make a check-up and only then show that variable. Try like this:

<?php
   if(isset($_GET['username'])){
       echo $_GET["username"];
   }

?>

edited Apr 08 '20 at 16:38

answered Apr 08 '20 at 16:35

Elman Huseynov

1,127
1
8
18

1

Do or Do Not, there is no "Try" padawan. A **good answers** will always have an explanation of what was done and why it was done that way, not only for the OP but for future visitors to SO that may find this question and be reading your answer. – RiggsFolly Apr 08 '20 at 16:37
@RiggsFolly updated answer, added explanation. – Elman Huseynov Apr 08 '20 at 16:38
1

Proper bracing and closing should be used also. – Funk Forty Niner Apr 08 '20 at 16:38
@FunkFortyNiner also added that. – Elman Huseynov Apr 08 '20 at 16:39
1

@ElmanHuseynov I noticed ;-) – Funk Forty Niner Apr 08 '20 at 16:40
Thank you for the advice. Now it doesn't report me error, but after completing the form. It will give me an error Object not found! Error 404 Could this be a bug in my localhost? – estrower Apr 08 '20 at 16:51
@estrower it is because your form is sending site.php. Try to change form action from site.php to "/" – Elman Huseynov Apr 08 '20 at 16:52
Thank you very much for your help. @ElmanHuseynov – estrower Apr 08 '20 at 18:31
@estrower you are welcome. Please tick green my answer if it solves your issue. – Elman Huseynov Apr 08 '20 at 19:29

Hi, I'm getting started with PHP and I'm stuck with a beginner's error

1 Answers1