php5.3以上版本中快速url重写的方法

2. #-------------- .htaccess start ---------------
3. RewriteEngine on
4. RewriteRule !\.(js|ico|gif|jpg|png|css|swf|htm|txt)$ index.php
5. php_flag magic_quotes_gpc off
6. php_flag register_globals off
7. #-------------- .htaccess end ---------------

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重写功能引入:让站点根目录的index.php末尾写上下列代码,重写就开启了(正常条件:1.apache的重写配置成功,且开启了.htaccess支持的.2.站点根目录的.htaccess文件设置好了.3.class.rewrite.php类文件在index.php前面部分加载了.4.页面模块文件位置及写法无误):

2. //............
3. Rewrite::__config(
4. $config['path'],/*'http://xxxxx/mysite/'URL基础位置*/
5. $config['md_path'],/*'c:/phpsite/www/mysite/modules/'模块文件物理目录*/
6. array(
7. 'phpinfo'
8. )
9. );
10. Rewrite::__parse();
11. //..........

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模块文件写法:

testPk.php

3. class Rw_testPk extends Rewrite {

4. //这个是前导函数,只要访问到testpk这个页面,这个必然会执行,可用来控制本页面内函数访问权限或本页面全局变量
5. public static function init(){
6. //if (!defined('SITE_PASS')){
7. echo self::$linktag.'
   ';//self::$linktag是页面解析位置路径值,会常使用.
8. //}
9. }

10. //当访问"http://localhost/testpk/"时会执行

11. public static function index(){
12. echo 'test';
13. }

14. //当访问"http://localhost/testpk/blank"时会执行或写作"http://localhost/testpk/index/blank"一般"index/"都是可以被省略的

15. public static function blank(){}
16. }
17. ?>

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class.rewrite.php;

3. class Rewrite{

4. public static $debug = false;//是否打开调试
5. public static $time_pass = 0;//获得模块文件整体执行时间
6. public static $version = 2.2;
7. public static $pretag = 'Rw_';//模块文件类的名称前缀

8. public static $linktag = 'index';//页面链接标记,用来标记解析的是那个链接,可用来控制各种菜单效果和链接访问权限

9. protected static $time_start = 0;

10. protected static $time_end = 0;
11. protected static $physical_path = '';//模块文件的物理路径
12. protected static $website_path = '';//模块文件的站点路径,因为可能把站点放大站点的子目录下,如:http://localhost/site/mysite
13. protected static $ob_contents = '';
14. protected static $uid = 0;//配合个人主页访问方式 如http://localhost/423/则是访问http://localhost/profile?uid=423

15. //允许的系统函数如$allow_sys_fun=array('phpinfo')那么系统将允许链接访问phpinfo内容了,当http://localhost/phpinfo或http://localhost/......./phpinfo时就会直接执行phpinfo这个函数,不需要phpinfo.php模块文件

16. private static $allow_sys_fun = array();

17. private static function __get_microtime(){

18. list($usec, $sec) = explode(" ",microtime());
19. return ((float)$usec + (float)$sec);
20. }

21. //设置调试Rewrite::__debug(true);

22. public static function __debug($d = true){
23. static::$debug = $d;
24. }

25. //配置路径和允许函数

26. public static function __config($website_path = '',$physical_path = '',$allow_sys_fun = array()){
27. self::$physical_path = $physical_path;
28. self::$website_path = $website_path;
29. self::$allow_sys_fun = $allow_sys_fun;
30. }

31. //调试函数

32. public static function __msg($str){
33. if(static::$debug){
34. echo "\n

    \n".print_r($str,true)."\n

    \n";
35. }
36. }

37. //解析开始时间

38. public static function __start(){
39. self::$time_start = self::__get_microtime();
40. }

41. //解析结束时间

42. public static function __end($re = false){
43. self::$time_end = self::__get_microtime();
44. self::$time_pass = round((self::$time_end - self::$time_start),6) * 1000;
45. if($re){
46. return self::$time_pass;
47. }else{
48. self::__msg('PASS_TIME: '.self::$time_pass.' ms');
49. }
50. }

51. //内部跨模块url解析调用,如在test1.php模块页面中执行了Rwrite::__parseurl('/test2/show')这句,将调用test2.php模块页面中的show方法(Rw_test2这个class的方法)

52. public static function __parseurl($url = '',$fun = '',$data = NULL){
53. if(!empty($url)&&!empty($fun)){
54. $p = static::$physical_path;
55. if(file_exists($p.$url) || file_exists($p.$url.'.php') ){
56. $part = strtolower(basename( $p.$url , '.php' ));
57. static::$linktag = $part.'/'.$fun;
58. $fname = static::$pretag.$part;
59. if(class_exists($fname, false)){
60. if(method_exists($fname,$fun)){
61. return $fname::$fun($data);
62. }
63. }else{
64. include( $p.$url );
65. if( class_exists($fname, false) && method_exists($fname,$fun)){
66. return $fname::$fun($data);
67. }
68. }
69. }
70. }
71. }

72. //核心链接解析函数Rwrite::__parse();在*重写核心定向目标index.php中的执行,意味着Rwrite自定义重写开启

73. public static function __parse($Url = ''){
74. self::__start();
75. $p = static::$physical_path;
76. $w = static::$website_path;
77. $req_execute = false;

78. $url_p = empty($Url) ? $_SERVER['REQUEST_URI'] : $Url;

79. $local = parse_url($w);
80. $req = parse_url($url_p);
81. $req_path = preg_replace('|[^\w/.\\\]|','',$req['path']);
82. $req_para = empty($Url) ? strstr($_SERVER['SERVER_NAME'],'.',true) : 'www';
83. if(empty($Url) && substr_count($_SERVER['SERVER_NAME'],'.') == 2 && $req_para != 'www'){
84. self::__goto($req_para,preg_replace('|^'.$local['path'].'|',"",$req_path));
85. return ;
86. }else{
87. $req_path_arr = empty($req_path)?array():preg_split("|[/\\\]+|",preg_replace('|^'.$local['path'].'|',"",$req_path));
88. $req_fun = array_pop($req_path_arr);
89. if(substr($req_fun,0,2)=='__'){
90. $req_fun = substr($req_fun,2);
91. }
92. $req_path_rearr = array_filter($req_path_arr);

93. self::__msg($req_path_rearr);

94. $req_temp = implode('/',$req_path_rearr);

95. $fname = $req_temp.'/'.$req_fun;
96. if(!empty($req_fun)&&in_array($req_fun,static::$allow_sys_fun)){
97. $req_fun();
98. }else{
99. if(!empty($req_fun)&&file_exists($p.$fname.'.php') ){
100. include( $p.$fname.'.php' );
101. }else{
102. $fname = empty($req_temp) ? 'index' : $req_temp;
103. if(file_exists($p.$fname.'.php') ){
104. include( $p.$fname.'.php' );
105. }else{
106. $fname = $req_temp.'/index';
107. if(file_exists($p.$fname.'.php')){
108. include( $p.$fname.'.php' );
109. }else{

110. //这个地方是对"个人主页"的这种特殊链接定向到"profile/"了,可自己修改

111. //如:www.xxx.com/12/将表示www.xxx.com/profile/?uid=12或www.xxx.com/profile?uid=12

112. $uid = is_numeric($req_temp) ? $req_temp : strstr($req_temp, '/', true);

113. $ufun = is_numeric($req_temp) ? 'index' : strstr($req_temp, '/');
114. if(is_numeric($uid)){
115. self::$uid = $uid;
116. if(!isset($_GET['uid'])) $_GET['uid'] = $uid;
117. $fname = 'profile/'.$ufun;
118. if(file_exists($p.$fname.'.php')){
119. include( $p.$fname.'.php' );
120. }else{
121. header("location:".$w);
122. exit();
123. }
124. }else if(file_exists($p.'index.php')){
125. $fname = 'index';
126. include( $p.'index.php' );
127. }else{
128. header("location:".$w);
129. exit();
130. }
131. }
132. }
133. }
134. $ev_fname = strrpos($fname,'/')===false ? $fname : substr($fname,strrpos($fname,'/')+1);
135. $ev_fname = static::$pretag.$ev_fname;
136. if( class_exists($ev_fname, false) && method_exists($ev_fname,$req_fun)){
137. static::$linktag = $req_fun=='index' ? $fname.'/' : $fname.'/'.$req_fun;
138. if($req_fun != 'init' && method_exists($ev_fname,'init')){
139. $ev_fname::init();
140. }
141. $ev_fname::$req_fun();
142. }else if( class_exists($ev_fname, false) && method_exists($ev_fname,'index') ){
143. static::$linktag = $fname.'/';
144. if(method_exists($ev_fname,'init')){
145. $ev_fname::init();
146. }
147. $ev_fname::index();
148. }else if( $fname != 'index' && class_exists(static::$pretag.'index', false) && method_exists(static::$pretag.'index','index') ){
149. $ev_fname = static::$pretag.'index';
150. static::$linktag = 'index/';
151. if(method_exists($ev_fname,'init')){
152. $ev_fname::init();
153. }
154. $ev_fname::index();
155. }else{
156. self::__msg('Function Not Exist!');
157. }
158. }
159. }
160. self::__end();
161. }

162. //这里是用户自定义链接的解析(用数据库存储的解析值) 如: xiaoming.baidu.com

163. //数据库中 xiaoming这个标签指向一个人的博客 就会到了www.baidu.com/blog?uid=12或www.baidu.com/blog?uname=xiaoming(看如何设计数据库了)
164. public static function __goto($para = '',$path = ''){
165. $w = static::$website_path;
166. if(empty($para)){
167. exit('未知链接,解析失败,不能访问');
168. }
169. if(class_exists('Parseurl')){
170. $prs = Parseurl::selectone(array('tag','=',$para));
171. self::__msg($prs);
172. if(!empty($prs)){
173. $parastr = $prs['tag'];
174. $output = array();
175. $_GET[$prs['idtag']] = $prs['id'];
176. parse_str($prs['parastr'], $output);
177. $_GET = array_merge($_GET,$output);
178. $path = $prs['type'].'/'.preg_replace('|^/'.$prs['type'].'|','',$path);
179. self::__msg($path);
180. header('location:'.$w.$path.'?'.http_build_query($_GET));
181. exit();
182. }else{
183. header("location:".$w);
184. exit();
185. }
186. }else{
187. header("location:".$w);
188. exit();
189. }
190. }
191. }
192. ?>

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