Regex with variable content

I'm trying to write some kind of parser in PHP: it receives a text containing variables between #*test-var*#, e.g.: blabla #test-var# blabla What I'm trying to do is to adjust this text so it becomes : blabla <p>test-var</p> blabla

On top of that, the type of variable can 开发者_运维百科change, e.g.: blabla #*:test-var*# blabla should become something like: blabla <div>test-var</div>

(I've used some HTML simple tags here (e.g. the <p> tag) to explain it, but eventually this should become more advanced HTML)

Anyone got some suggestions?

Some simple regex will do.

$string = 'blah blah #*test-var*# blah blah';
$types = array(
    array(
        '/#\*(.*?)\*#/',
        '<p>$1</p>'
    ),
    array(
        '/#\*:(.*?)\*#/',
        '<div>$1</div>'
    )
);
foreach ($types as $type) {
    $string = preg_replace($type[0], $type[1], $string);
}

Edit: added support for multiple tags.

function some_kind_of_parser($input, $wrapper_tag='p', $wrapper_attributes='') {
  if ($wrapper_attributes == '')
    $open_tag = "<$wrapper_tag>";
  else
    $open_tag = "<$wrapper_tag $wrapper_attributes>";

  $close_tag ="</$wrapper_tag>";

  $regex = '/[^(?:#\*)]+#\*([^(#\*)]+)\*#[^(?:#\*)]+/';
  return preg_replace($regex, "$open_tag$1$close_tag", $input);
}

$test = 'blah blah #*test-var*# blah blah';

echo some_kind_of_parser($test); 
# => <p>test-var</p>

echo some_kind_of_parser($test, 'div', 'class="foo" id ="bar"');   
# => <div class="foo" id ="bar">test-var</div>