Get id from url in a variable PHP - php

Question

Have a problem to get the id from the URL in a variable!
The Url is like this domain.com/article/1123/
and its like dynamic with many id's
I want to save the 1123 in a variable please help!
a tried it with this
if(isset($_GET['id']) && !preg_match('/[0-9]{4}[a-zA-Z]{0,2}/', $_GET['id'], $id)) {
require_once('404.php');
} else {
$id = $_GET['id'];
}

Answer 1

The absolute simplest way to accomplish this, is with basename()
echo basename('domain.com/article/1123');
Which will print
1123
the reference url click hear

Answer 2

I would do in this way:
Explode the string using /.
Get the length of the exploded array.
Get the last element, which will be the ID.
Code
$url = $_SERVER[REQUEST_URI];
$url = explode("/", $url);
$id = $url[count($url) - 1];

Answer 3

You should definitely be using parse_url to select the correct portion of the URL – just in case a ?query or #fragment exists on the URL
$parts = explode('/', parse_url($_SERVER['REQUEST_URI'], PHP_URL_PATH));
$parts[0]; // 'domain.com'
$parts[1]; // 'article'
$parts[2]; // '1123'
You'll probably want to reference these as names too. You can do that elegantly with array_combine
$params = array_combine(['domain', 'resource', 'id'], $parts);
$params['domain']; // 'domain.com'
$params['resource']; // 'article'
$params['id']; // '1123'
I'm really feeling like a procrastinator right now so I made you a little router. You don't have to bother dissecting this too much right now; first learn how to just use it, then you can pick it apart later.
function makeRouter ($routes, callable $else) {
return function ($url) use ($routes, $else) {
foreach ($routes as $route => $handler) {
if (preg_match(makeRouteMatcher($route), $url, $values)) {
call_user_func_array($handler, array_slice($values, 1));
return;
}
}
call_user_func($else, $url);
};
}
function makeRouteMatcher ($route) {
return sprintf('#^%s$#', preg_replace('#:([^/]+)#', '([^/]+)', $route));
}
function route404 ($url) {
echo "No matching route: $url";
}
OK, so here we'll define our routes and what's supposed to happen on each route
// create a router instance with your route patterns and handlers
$router = makeRouter([
'/:domain/:resource/:id' => function ($domain, $resource, $id) {
echo "domain:$domain, resource:$resource, id:$id", PHP_EOL;
},
'/public/:filename' => function ($filename) {
echo "serving up file: $filename", PHP_EOL;
},
'/' => function () {
echo "root url!", PHP_EOL;
}
], 'route404');
Now let's see it do our bidding ...
$router('/domain.com/article/1123');
// domain:domain.com, resource:article, id:1123
$router('/public/cats.jpg');
// serving up file: cats.jpg
$router('/');
// root url!
$router('what?');
// No matching route: what?
Yeah, I was really that bored with my current work task ...

Answer 4

That can be done quite simple. First of all, you should create a variable with a string that contains your URL. That can be done with the $_SERVER array. This contains information about your server, also the URL you're actually at.
Second point is to split the URL. This can be done by different ways, I like to use the p_reg function to split it. In your case, you want to split after every / because this way you'll have an array with every single "directory" of your URL.
After that, its simply choosing the right position in the array.
$path = $_SERVER['REQUEST_URI']; // /article/1123/
$folders = preg_split('/', $path); // splits folders in array
$your_id = $folders[1];

Answer 5

To be thorough, you'll want to start with parse_url().
$parts=parse_url("domain.com/article/1123/");
That will give you an array with a handful of keys. The one you are looking for is path.
Split the path on / and take the last one.
$path_parts=explode('/', $parts['path']);
Your ID is now in $path_parts[count($path_parts)-1];