PHP for loop in $_SESSION names

Question

Trying to convert $_GET to $_SESSION but alot of them using php for loop!

But i cant get it to work!

for ($x = 0; $x <= 2; $x++) {
$_SESSION["u'.$x.'_first_name"] = $_GET["u'.$x.'_first_name"];
}

Does this answer your question? [How can I combine two strings together in PHP?](https://stackoverflow.com/questions/8336858/how-can-i-combine-two-strings-together-in-php) — Blackhole, Oct 08 '22 at 19:43
Are all the GET variables actually set when you try to call them? — Professor Abronsius, Oct 08 '22 at 19:53
Yes as if i use it not a loop/for like $_SESSION['u1_first_name'] = $_GET['u1_first_name']; it works fine! — user1296114, Oct 08 '22 at 19:56
There is a difference between the code in the question and that little (hardcoded) snippet! The hardcoded example has an underscore **before** the number — Professor Abronsius, Oct 08 '22 at 19:59
I dont think your correct there. "u'.$x.'_first_name" would be "u1_first_name" and the hardcoded is "u1_first_name" — user1296114, Oct 08 '22 at 20:03
look closely at the code in the question and then the code you just added in comment ... `u1_` — Professor Abronsius, Oct 08 '22 at 20:05
Im looking closely but i still dont get what im doing wrong! — user1296114, Oct 08 '22 at 20:09
Is there actually a `$_GET['u0_first_name']`? (note the 0 index, not 1) — Nick, Oct 08 '22 at 21:38
Good point, user 0 dont exist. But the loop right now runs until 2, and 1 and 2 dont work :( Its ok i can hard code the names as i cant get the for loop to work! Thanks anyway — user1296114, Oct 09 '22 at 12:22

score 0 · Accepted Answer · answered Oct 10 '22 at 01:17

0

I think this what you want

    for ($x = 1; $x <= 2; $x++) {
    $_SESSION['u'.$x.'_first_name'] = $_GET['u'.$x.'_first_name'];
    }

Your single quotes were bracketing the $x.

And I have started the loop counter at 1 (from the comments).

answered Oct 10 '22 at 01:17

Rohit Gupta

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Thanks mate for trying to help my stupid little problem. But i have tried that also! Maybe my PHP dont like me! Do the code work if you try it? – user1296114 Oct 10 '22 at 22:07
I cant try it without duplicating the whole scenario, But if you **$POS['u1_first_name']** and **$POST['u2_first_name']** exist, then it will work. – Rohit Gupta Oct 10 '22 at 22:20
I made a own file just for testing the code, and suprice suprice it work!. Thanks – user1296114 Oct 11 '22 at 22:37
Dont forget to tick the answer – Rohit Gupta Oct 11 '22 at 22:44

score 0 · Answer 2 · answered Oct 11 '22 at 22:36

Everyone was right. It works already, maybe i have some intefering $x somewhere else that was making the code not to work. As when i run it by it self, its all good!

for ($u = 1; $u <= $_GET['amount']; $u++) {
$_SESSION['u'.$u.'_first_name'] = $_GET['u'.$u.'_first_name'];
echo 'session : '.$_SESSION['u'.$u.'_first_name'].'<br>';
}

echo '
<form action="" id="formBook">
Amount : <input id="amount" name="amount" value="'.$_GET['amount'].'"><br>
';

for ($x = 1; $x <= $_GET['amount']; $x++) {
echo '
Name '.$x.' : <input type="text" class="form-control rounded-0" id="u'.$x.'_first_name" name="u'.$x.'_first_name" value="'.$_SESSION['u'.$x.'_first_name'].'"><br>
';
}

echo '
<input class="btn btn-primary mb-3" type="submit" name="submit" value="Next" class="button"><br>
';

https://ideone.com/sodDBm (a fiddle for it)

Thanks everyone for your help!

PHP for loop in $_SESSION names

2 Answers2