How to split strings in php?

Question

PHP

Hello. Tell me what php functions to use to break the request url strings.
For example, there are url patches like this:
/category/page.html
/page3.html
/category1/category2/
/category/
I need to get an array containing a sequential hierarchy of the url request.
For example, there is a line: /category1/category2/page.html
You need to get an array:
Array (
[0] => "/category1/",
[1] => "/category1/category2/",
[2] => "/category1 /category2/page.html"
)
or
/category1/category2/
Array (
[0] => "/category1/",
[1] => "
)

Answer 1

$str = '/category1/category2/page.html';

$parts = preg_split('/(?<=\w\/)(?=\w)/', $str, -1, PREG_SPLIT_NO_EMPTY);
for ($i = 1; $i < sizeof($parts); $i++) {
    $parts[$i] = $parts[$i - 1] . $parts[$i];
}

ideone.com/5usIN4

Answer 2

You can't get this with regular means

Answer 3

$str = '/category1/category2/page.html';
$items = explode("/", $str);
$result = [];
for ($i = 1; $i < count($items); $i++) {
    $result[] = implode("/", array_slice($items, 0, $i));
}

The code needs some work, but in general it's possible

Answer 4

Examine the preg_match function, there are 3 $matches parameters, and you will receive a sequential url request hierarchy into it.

if (preg_match('%^(\w+.*)/(\d+)-(\w+.*).html$%', $pathInfo, $matches)) {
            $params['calias'] = $matches[1];
            $params['id'] = $matches[2];
            $params['alias'] = $matches[3];
        }