How can I redirect users to different pages based on get url in PHP?

Question

I'm building a blog . I want to redirect users who tried to access a post page , without get parameter to thr previous page (if possible without $_SERVER['HTTP_REFERER'])

Exemple : www.myblog.com/post.php

And allow access to this page only via this url

www.myblog.com/post.php?id=number

*"without get parameter"* and without `$_SERVER['HTTP_REFERER']`. No idea. Can't have your cake and eat it too. — Funk Forty Niner, Mar 29 '16 at 13:54
@Fred-ii- Yes , if user delete `?id=number` he will get to root file and there nothing on it ... — Trippy, Mar 29 '16 at 14:02
you have answers below, that some pretty much do what I had in mind. see if any help. — Funk Forty Niner, Mar 29 '16 at 14:06

score 2 · Answer 1 · answered Mar 29 '16 at 13:52

2

You can use this PHP Codes if id is not set or empty, just choose here I would Recommend to use empty() function:

if(!isset($_GET['id'])) {
header("location: url");
}

or

if($_GET['id'] == NULL) {
header("location: url");
}

or

if(empty($_GET['id'])) {
header("location: url");
}

answered Mar 29 '16 at 13:52

CharlesCraft50

44
8

OP: *"without get parameter"* – Funk Forty Niner Mar 29 '16 at 13:54

score 1 · Accepted Answer · answered Mar 29 '16 at 13:55

You can use a session variable.

First, in the script that accesses to post.php you need start the session and you need know the id, for example:

session_start();
$_SESSION['post_id'] = $id; //$id is the post id

Next, in post.php start the session and you can use the id to redirect, do a sql query.......

How can I redirect users to different pages based on get url in PHP?

2 Answers2