[Phpwiki-talk] how to change online content during runtime with plugin

[Stefan <son...@ba...>]

i need to change some lines of code from a wiki page during runtime with 
a plugin

with

        $page = $dbi->getPage($pagename);
        $current = $page->getCurrentRevision();
        $content = $current->getContent();

i do get the content of the page
now i like to read every line from the $content und if something matches 
i will chnage the line and write it back to be viewed then.

For example I do have a special sign on the page like ## i will replace 
it with other code.

    foreach ($content as $line) {
      If (substr($line,0,2) == "##")
      {
         $line = $newtext . substr($line,2)      
      }
    }

How to write the new $line instead the original $line

Stefan