Url Rewriter URL重写

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程序名称：Url Rewriter
开发者/组织名称：Cesar D. Rodas
运行环境：php+mysql,php+文本
官方网站：http://www.thyphp.com/
文章来源：http://www.OSphp.com.cn
下载地址：

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点击下载源码文件: url_rewriter-2007-11-18.zip

程序介绍：

//oSPHP.COM.CN

This class can be used to redirect requests based on URL rewriting rules.

It can check whether the current request URL matches one or more rules.

If one of the defined rules is matched, the class determines the path of a PHP script that will handle the request and executes that script using the PHP require command.

If none of the rules matches, the class include the default error script and returns the 404 status code to the browser.




URL Rewriter

Cesar D. Rodas <cesar@sixdegrees.com>



This class provides an easy mechanism to manage URL rewriting, avoiding to write and manage the  ".htaccess" file.

Another issue is that you can use a personalized regular expression for create friendlies URL.
 //OsPHP.COM.CN 


I. Basic Structure

   <?php

        require "url_rewriter.php";

        $url = new url_rewriter('example/');

        $url->e404 = "error.php"; 

        // regular expression rules goes here
 //开源代码OSPhP.COm.CN 
        $url->execute();

   ?>



II. Regular Expressions

    The regular expression are simple a set of constants, variable, and optionals parts.

    Example:

        $country=array('Argentina','Brasil','Paraguay');

        $url->add_rule("index.php","/[country]/{index.html}", array('country'=> $country) ); 

       

    If the first rule give true, "index.php" will be executed. For that country must be "Argentina", "Brasil" or "Paraguay" (this is because we force with the third parameter. "Country" must be in $country), and must exist an "index.html" or nothing.
 //PHP开源代码 
    

        * /Paraguay/index.html  : Match

        * /Paraguay/                  : Match

        * /Paraguay/foo.html     : Mismatch

    

    The :numberX, where X is an identification, variable is an special variable that it must be numeric for match.

    

    Example:

        $country=array('Argentina','Brasil','Paraguay');

        $url->add_rule("foo.php","/[country]/[str]-[:number1]-site{-[:number2]}.[ext]", array('country'=> $country,':number2' => 2) );
 //开源代码OSPhP.COm.CN 
        

        * /Paraguay/some_string-123-site.html                       :    Match

        * /Paraguay/some_other_string-123-site-456.html     :    Mismatch

        * /Paraguay/some_other_string-123-site-2.html         :    Match

        * /Paraguay/some_other_string-123-site-foo.html      :    Mismatch



III. Real life example

    Steps for  translate a page which is "foo.php?id=45" to its URL friendly mode.
 //OSPHP.COM.Cn开源 
    *   Download http://cesars.users.phpclasses.org/url_rewriter

    *   Edit url_handler.php

    *   Add a new rule

        $url->add_rule("foo.php","/entry-[:number1].html");

    *   Change all your links

        foo.php?id=45 for /entry-45.html

    * Edit foo.php adding an extra header

       <?php

            $id = $urlVars['number1'];
 //开源代码OSPhP.COm.CN 
            //check if $id exist

             if ($id not exist) $urlHandler->error404();

            //handle request as you did before

        ?>