如何模拟堆栈溢出自动链接行为

试试看 URL匹配的正则表达式模式来自DaringFireball。

function auto_link_text($text){   // a more readably-formatted version of the pattern is on http://daringfireball.net/2010/07/improved_regex_for_matching_urls   $pattern  = '(?i)b((?:[a-z][w-]+:(?:/{1,3}|[a-z0-9%])|wwwd{0,3}[.]|[a-z0-9.-]+[.][a-z]{2,4}/)(?:[^s()<>]+|(([^s()<>]+|(([^s()<>]+)))*))+(?:(([^s()<>]+|(([^s()<>]+)))*)|[^s`!()[]{};:'".,<>?«»“”‘’]))';   $callback = create_function('$matches', '       $url       = array_shift($matches);       $url_parts = parse_url($url);       $text = parse_url($url, PHP_URL_HOST) . parse_url($url, PHP_URL_PATH);       $text = preg_replace("/^www./", "", $text);       $last = -(strlen(strrchr($text, "/"))) + 1;       if ($last < 0) {$text = substr($text, 0, $last) . "&hellip;";       }       return sprintf('<a rel="nofollow" href="%s">%s</a>', $url, $text);   ');   return preg_replace_callback($pattern, $callback, $text);}

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This is my text.  I wonder if you know about asking questions on StackOverflow: Check This out http://www.stackoverflow.com/questions/1925455/how-to-mimic-stackoverflow-auto-link-behavior Also, base_convert php function?http://pt.php.net/manual/en/function.base-convert.php#52450http://pt.php.net/manual/en/function.base-convert.php?wtf=hehe#52450