GeSHi - Generic Syntax Highlighter for PluginCode should be in mods (and activated on *.tw.o sites)

• Usability
• Feature request
• Dogfood on a *.tiki.org site

PluginCode doesn't show colors for php code, as it should according to doc page:
http://doc.tikiwiki.org/PluginCode
Tried with param colors=>php or colors=>phpcode:

{CODE(colors=>php)}
/** Return system defined temporary directory.
  * In Unix, this is usually /tmp
  * In Windows, this is usually c:\windows\temp or c:\winnt\temp
  * \static
  */
    function tempdir() {
        static $tempdir;
        <b>$tempdir = '../tmp';</b>
<b>/*</b>        if (!$tempdir) {
            $tempfile = tempnam(false,'');
            $tempdir = dirname($tempfile);
            @unlink($tempfile);
        } <b>*/</b>
        return $tempdir;
    }
}
{CODE}

And it returned:

/** Return system defined temporary directory.
  * In Unix, this is usually /tmp
  * In Windows, this is usually c:\windows\temp or c:\winnt\temp
  * \static
  */
    function tempdir() {
        static $tempdir;
        $tempdir = '../tmp';
/*        if (!$tempdir) {
            $tempfile = tempnam(false,'');
            $tempdir = dirname($tempfile);
            @unlink($tempfile);
        } */
        return $tempdir;
    }

}

Update: RFE for plugincode:
Why not using "wrap=>1" as default param instead as "wrap=>0"?

From the doc:

Since GeSHI has been licensed under GPL only - which is incompatible with Tikiwiki's LGPL licence - you need to manually download (http://qbnz.com/highlighter) and copy GeSHI in your own tikiwiki's lib/geshi/ directory. You can also install the stable version of GeSHI with the Debian/Ubuntu package "php-geshi".

This would be a great Mods

This bug has been demonstrated on show2.tiki.org

Please demonstrate your bug on show2.tiki.org