[转] php 去除html

function replaceHtmlAndJs($document){$document = trim($document);if (strlen($document) <= 0){  return $document;}$search = array ("'<script[^>]*?>.*?</script>'si",  // 去掉 javascript                  "'<[\/\!]*?[^<>]*?>'si",          // 去掉 HTML 标记                  "'([\r\n])[\s]+'",                // 去掉空白字符                  "'&(quot|#34);'i",                // 替换 HTML 实体                  "'&(amp|#38);'i",                  "'&(lt|#60);'i",                  "'&(gt|#62);'i",                  "'&(nbsp|#160);'i"                  );                    // 作为 PHP 代码运行$replace = array ("",                   "",                   "\\1",                   "\"",                   "&",                   "<",                   ">",                   " "                   );return @preg_replace ($search, $replace, $document);}