PHP SESSION array ends up in error

Question

Quick PHP Question. I am kinda newb to PHP so bear with me.

Why this ends up with 500 server error?

<?php
//session start
session_start();

//one time ticket is issued
$ticket = md5(uniqid(mt_rand),TRUE);

//put var ticket in SESSION array which is used in next page.
$_SESSION['ticket'][] = $ticket;

...

$_SESSION['ticketPOST'] = $_POST['ticket'];

...

//functionize htmlspecialchars
function h($string) {
    return htmlspecialchars($string, ENT_QUOTES);
}

?>

in same file down below, I wrote something like this:

<form action="brahbrah.php" method="post">
<input type="hidden" name="ticket" value="<?php echo h($ticket); ?>">
<input type="submit" name="indexForm" value="preview">
</form>

any help appreciated. Thanx.

please tell is it 500 error or some PHP error ? your code seems to generate php error ? — GBD
– GBD, Commented Sep 21, 2012 at 7:18
I guess both. Strange thing that when I change $_SESSION['ticket'][] = $ticket; to $_SESSION['ticket'] = $ticket; (omit square bracket), this works fine. So this means PHP code error, right? — norixxx
– norixxx, Commented Sep 21, 2012 at 22:56

Mihai Matei · Accepted Answer · 2012-09-21 07:07:56Z

7

$ticket = md5(uniqid(mt_rand()),TRUE);

mt_rand is a function and you forgot to put ()

answered Sep 21, 2012 at 7:07

Mihai Matei

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3 Comments

j4kes Over a year ago

The type of error depends on his error settings in his php.ini file. I believe that he will get a 500 Internal Server error if he does not have his display_errors set to On.

norixxx Over a year ago

I tried $ticket = md5(uniqid(mt_rand()),TRUE); and $ticket = md5(uniqid(mt_rand(),TRUE)); both did not work. Does this have to do with my PHP.ini's settig? I will try correcting it too.

norixxx Over a year ago

Wait I modified it like this and worked fine somehow. $ticket = md5(uniqid(mt_rand(),TRUE));

Kichu · Accepted Answer · 2012-09-21 07:12:31Z

1

See this link :http://php.net/manual/en/function.mt-rand.php

Try this code:

<?php
//session start
session_start();

//one time ticket is issued
$ticket = md5(uniqid(mt_rand()),TRUE);

//put var ticket to SESSION array which is used in next page.
$_SESSION['ticket'][] = $ticket;

...
?>

mt_rand required ()

answered Sep 21, 2012 at 7:12

Kichu

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1 Comment

norixxx Over a year ago

Thanx Mariya. I forgot to put it.

MrSil · Accepted Answer · 2012-09-21 07:08:13Z

0

Set
error_reporting(E_ALL);
ini_set('display_errors', true);

And see what an error

answered Sep 21, 2012 at 7:08

MrSil

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1 Comment

norixxx Over a year ago

Thanks for the advice. I use BLUEHOST as my test server. I configured php.ini which is located in public_html/ like 'error_reporting = E_ALL' but I still get 500 internal server error...

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