setting cookies using php

Question

<?php   
$_SESSION['name'] = array($_POST['name']) ;
$n = $_SESSION['name'][0];
setcookie('name[0]',$n,time()+(60*30));
?>
<html>
    <form class="contact100-form validate-form" action="step-3.php" >
        <input class="input100" type="text" name="name[]" placeholder="Enter Your First Name " value="<?php echo $_COOKIE['name[0]']; ?>"  />
        <button class="contact100-form-btn" type="submit" formmethod="post" onclick="valid()">
            Next
        </button>
    </form>
</html>

I need to set COOKIE so as to retain the data in the form in case the user clicks the browser's back button from the the action page.

But somehow the cookie is unable to set. The error:

Notice: Undefined index: name[0]

What am I doing wrong?

P.S. I need to save the data as an array also suggest if there is a better way to do his. maybe using session

Possible duplicate of [PHP: "Notice: Undefined variable", "Notice: Undefined index", and "Notice: Undefined offset"](https://stackoverflow.com/questions/4261133/php-notice-undefined-variable-notice-undefined-index-and-notice-undef) — Capricorn, Jun 27 '18 at 11:10

score 0 · Answer 1 · answered Jun 27 '18 at 11:12

0

Your session is not started, thus the session array is not accessible.

Add session_start(); as the line below the PHP tag and it should work.

answered Jun 27 '18 at 11:12

Andreas

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i have a `session_start()`. i have only given the neccessary lines of code. – NEETHI N Nambiar Jun 27 '18 at 11:13
That is generally a necessary line of code for us to know how to help you. – Andreas Jun 27 '18 at 11:14
@NEETHINNambiar what do you get when you do `var_dump($_SESSION]`? – Masivuye Cokile Jun 27 '18 at 11:19
@MasivuyeCokile i get all the session data. no error there. – NEETHI N Nambiar Jun 27 '18 at 11:31

setting cookies using php

1 Answers1