regex - php getting part of a URL into a string -

hi guys m using code id on url

$string = $url; $matches = array(); preg_match_all('/.*?\/(\d+)\/?/s', $string, $matches);  $id = $matches[1][0]; 

this code works urls like

http://mysite.com/page/1 http://mysite.com/page/somepage/2 http://mysite.com/page/3/?pag=1 

i have id = 1 / id = 2 / id = 3

but url this

http://mysite.com/page/122-page-name/1 

this returns id = 122

the id m try last part of url or have /?p= after

so urls type can have

http://mysite.com/page/1 http://mysite.com/page/some-page/2 http://mysite.com/page/12-some-name/3 http://mysite.com/page/some-page/4/?p=1 http://mysite.com/page/13-some-page/5/?p=2 

id = 1 / id = 2 / id = 3 / id = 4 / id = 5

if id located @ end of url, explode contents of url , take last element of resulting array. if may include variables (like ?pag=1) can add validation after explode check variable.

$urlarray = explode('/', $url); $page = end($urlarray); if(strpos($page, 'pag')!==false){     //get contents of variable $page variable     //exploding variable through ? variable , getting     //the numeric characters @ end }