Get word after certain word in split array?

Question

I have a path that is separated by forward slash.

$uri = getenv('REQUEST_URI');
$uri = explode('/', $uri);
$uri = array_filter($uri);
$uri = array_merge($uri, array());

The path would end up something like:

/user/john/account

This will grab the last word in the path, 'account'.

$uri = end($uri);

How can I get the first word found after 'user' into a variable?

In this case it would be 'john', but the name can change on every new URI.

'user' always stays the same word.

if you are using url rewriting then this would not be need to split. http://stackoverflow.com/questions/16388959/url-rewriting-with-php — Noman, Feb 08 '17 at 10:23

M A SIDDIQUI · Accepted Answer · 2017-02-08T10:53:59.467

3

$uri = "/user/john/account";
$uri_array = explode("/", $uri);
$key = array_search("user", $uri_array);
$desired_value = array_key_exists($key+1, $uri_array) ? $uri_array[$key+1] : "error";
echo $desired_value;

Here is what you need : Note : "user" is a fixed term in array_search .. you can change it

edited Feb 08 '17 at 10:53

answered Feb 08 '17 at 10:19

M A SIDDIQUI

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Hi, I'm trying to implement your solution. I found one small problem, if the path is not complete "/user" without 'john', and $key+1, it will throw an error. – Matt McManis Feb 08 '17 at 10:48
sorry its my my mistake .. its always good to check if array key exist – M A SIDDIQUI Feb 08 '17 at 10:51
It's working now in a test. It will take a while to set up for the pages and I'll get back to you and accept your answer. Thanks. – Matt McManis Feb 08 '17 at 11:01

bloodscript · Answer 2 · 2017-02-08T11:52:09.053

1

Before $uri = end($uri) add this:

$uriArray = explode('/',$uri);  //$uriArray[0] = 'user'  //$uriArray[1] = 'john'

$name = $uriArray[1];

With this you could also get the last element after a slash

EDIT: You could also use preg_split('pattern',$string) like this:

$name = preg_split('user/',$uri);

$name would be "john/account". Then use explode again, to save it into an array, element 0 is the name

edited Feb 08 '17 at 11:52

answered Feb 08 '17 at 10:16

bloodscript

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12

I had actually used this before, it selects a position, but I need after a specific word. It can still come in useful, thanks. – Matt McManis Feb 08 '17 at 10:31
added alternative solution, maybe this can help you – bloodscript Feb 08 '17 at 11:52

Yannick Huber · Answer 3 · 2019-09-17T08:21:07.257

Edit: Use M A SIDDIQUIs answer. It is the better way to solve this problem

You can write a function for this that finds out whitch position of the uri-Array contains the word user and then returns the next position that should contain the name.

function getName($uri)
{
    $uri = explode('/', $uri);
    for($i = 0; $i < sizeof($uri); $i++){
        if($uri[$i] == "user"){
            return $uri[$i+1];
        }
    }
}

Then you just have to print it out with:

echo getName("exmaple/user/username/etc");

score 1 · Answer 4 · edited Feb 08 '17 at 14:53

You can use this

$uri='/user/john/account';
$from1 ='/user/';
$to1 ='/';
//$uri = explode('/', $uri);

echo get_string_between($uri,$from1,$to1);

function get_string_between ($str,$from,$to) {
    $string = substr($str, strpos($str, $from) + strlen($from));
    if (strstr ($string,$to,TRUE) != FALSE) {
        $string = strstr ($string,$to,TRUE);
    }
    return $string;
}

Tom Regner · Answer 5 · 2017-02-08T12:53:10.007

1

Using preg_match might be more efficient in this case:

Psy Shell v0.8.1 (PHP 7.1.1-1+deb.sury.org~xenial+1 — cli) by Justin Hileman
>>> preg_match('~/user/([^/]+)/?~', '/test/user/username/tuedelue', $matches);
=> 1
>>> $matches;
=> [ 
     "/user/username/",
     "username",
   ]
>>> $matches[1];
=> "username"
>>> |

So these lines

$user = 'unknown';
if (preg_match('~/user/([^/]+)/?~', getenv('REQUEST_URI'), $matches)) {
    $user = $matches[1];
}

would solve your problem.

edited Feb 08 '17 at 12:53

answered Feb 08 '17 at 12:05

Tom Regner

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This works well, though if I run it on any page that doesn't contain /user/ it will error. Is there a way around that? – Matt McManis Feb 08 '17 at 12:42
How much faster/light on resource do you think this is than M A SIDDIQUI's solution? http://stackoverflow.com/a/42110367/6806643 – Matt McManis Feb 08 '17 at 14:36
You would have to try that out in your code ;-), I wouldn't know for sure. I'd bet under <=5.6 the regex performs better, and a tie for php >= 7.0 (or even the array winning); If I find the time a benchmark and comment again – Tom Regner Feb 08 '17 at 19:52

Get word after certain word in split array?

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