关于一个普通页面的php模式和正则表达式的解析问题? 望高手回复

Question

Convert HTML to text// $document should contain an HTML document.
// This will remove HTML tags, javascript sections
// and white space. It will also convert some
// common HTML entities to their text equivalent.$search = array ("'<script[^>]*?>.*?</script>'si",  // Strip out javascript
                "'<style[^>]*?>.*?</style>'si",  // Strip out css
                 "'<[\/\!]*?[^<>]*?>'si",           // Strip out html tags
                 "'([\r\n])[\s]+'",                 // Strip out white space
                 "'&(quot|#34);'i",                 // Replace html entities
                 "'&(amp|#38);'i",
                 "'&(lt|#60);'i",
                 "'&(gt|#62);'i",
                 "'&(nbsp|#160);'i",
                 "'&(iexcl|#161);'i",
                 "'&(cent|#162);'i",
                 "'&(pound|#163);'i",
                 "'&(copy|#169);'i",
                 "'&#(\d+);'e");                    // evaluate as php$replace = array ("",
                  "",
                  "\\1",
                  "",
                  "&",
                  "<",
                  ">",
                  " ",
                  chr(161),
                  chr(162),
                  chr(163),
                  chr(169),
                  "chr(\\1)");$text = preg_replace ($search, $replace, $document);

Answer 1

//去掉js
preg_replace( "#<script.*?>.+?<\/script>#is", "", $str );
//去掉style
preg_replace( "#<style>.+?<\/style>#is", "", $str );然后再strip_tags()...