$subject = “http://localhost/w2/dummudata/233333333/data.php?id=123&caid=get”;

$pattern = “/\/\d+\//”;

preg_match($pattern, $subject, $matches );

echo “<pre>”; print_r($matches); echo “</pre>”;

echo preg_replace(‘/\//’, ”, $matches[0] );

$pattern = “/\=\d+\&/”;preg_match($pattern, $subject, $matches );

echo “<pre>”; print_r($matches); echo “</pre>”;

echo preg_replace(‘/\=\&/’, ”, $matches[0] );