PHP 高亮类

function phphighlite($code) {
  //PHP 4 only
  if (floor(phpversion())", ">", $code);
  $code = str_replace("
  $code = str_replace("&", "&", $code);
  $code = str_replace('$', '\$', $code);
  $code = str_replace('\n', '\\\\n', $code);
  $code = str_replace('\r', '\\\\r', $code);
  $code = str_replace('\t', '\\\\t', $code);
  $code = stripslashes($code);
  if (!strpos($code,"";
   $addedtags=1;
  }
//  if (!strpos($code,"[code]") and substr($code,0,6)!="[code]") {
//   $code="[code]\n".trim($code)."\n[\/code]";
//   $addedtags=1;
//  }
  ob_start();
  $oldlevel=error_reporting(0);
  highlight_string($code);
  error_reporting($oldlevel);
  $buffer = ob_get_contents();
  ob_end_clean();
  if ($addedtags) {
    $openingpos = strpos($buffer,'PHP代码:$buffer";
  return "$buffer";
}