對於apache的rewrite模塊打開和設置則非本文主題,請見其他文章詳解.
這個類只能php 5.30以上的版本才能使用,繼承了上一個版本的快速重定向的特點(單獨類,全部使用靜態調用),增添了一個很重要的功能和屬性 可以調用其他url中的模塊了 也使得模塊與模塊間或頁面與頁面間的函數簡化共享得以實現
.htaccess文件寫法:
復制代碼 代碼如下:
#-------------- .htaccess start ---------------
RewriteEngine on
RewriteRule !\.(js|ico|gif|jpg|png|css|swf|htm|txt)$ index.php
php_flag magic_quotes_gpc off
php_flag register_globals off
#-------------- .htaccess end ---------------
重寫功能引入:讓站點根目錄的index.php末尾寫上下列代碼,重寫就開啟了(正常條件:1.apache的重寫配置成功,且開啟了.htaccess支持的.2.站點根目錄的.htaccess文件設置好了.3.class.rewrite.php類文件在index.php前面部分加載了.4.頁面模塊文件位置及寫法無誤):
復制代碼 代碼如下:
//............
Rewrite::__config(
$config['path'],/*'http://xxxxx/mysite/'URL基礎位置*/
$config['md_path'],/*'c:/phpsite/www/mysite/modules/'模塊文件物理目錄*/
array(
'phpinfo'
)
);
Rewrite::__parse();
//..........
模塊文件寫法:
testPk.php
復制代碼 代碼如下:
<?php
class Rw_testPk extends Rewrite {
//這個是前導函數,只要訪問到testpk這個頁面,這個必然會執行,可用來控制本頁面內函數訪問權限或本頁面全局變量
public static function init(){
//if (!defined('SITE_PASS')){
echo self::$linktag.'<br/>';//self::$linktag是頁面解析位置路徑值,會常使用.
//}
}
//當訪問"http://localhost/testpk/"時會執行
public static function index(){
echo 'test';
}
//當訪問"http://localhost/testpk/blank"時會執行或寫作"http://localhost/testpk/index/blank"一般"index/"都是可以被省略的
public static function blank(){}
}
?>
class.rewrite.php;
復制代碼 代碼如下:
<?php
class Rewrite{
public static $debug = false;//是否打開調試
public static $time_pass = 0;//獲得模塊文件整體執行時間
public static $version = 2.2;
public static $pretag = 'Rw_';//模塊文件類的名稱前綴
public static $linktag = 'index';//頁面鏈接標記,用來標記解析的是那個鏈接,可用來控制各種菜單效果和鏈接訪問權限
protected static $time_start = 0;
protected static $time_end = 0;
protected static $physical_path = '';//模塊文件的物理路徑
protected static $website_path = '';//模塊文件的站點路徑,因為可能把站點放大站點的子目錄下,如:http://localhost/site/mysite
protected static $ob_contents = '';
protected static $uid = 0;//配合個人主頁訪問方式 如http://localhost/423/則是訪問http://localhost/profile?uid=423
//允許的系統函數如$allow_sys_fun=array('phpinfo')那麼系統將允許鏈接訪問phpinfo內容了,當http://localhost/phpinfo或http://localhost/......./phpinfo時就會直接執行phpinfo這個函數,不需要phpinfo.php模塊文件
private static $allow_sys_fun = array();
private static function __get_microtime(){
list($usec, $sec) = explode(" ",microtime());
return ((float)$usec + (float)$sec);
}
//設置調試Rewrite::__debug(true);
public static function __debug($d = true){
static::$debug = $d;
}
//配置路徑和允許函數
public static function __config($website_path = '',$physical_path = '',$allow_sys_fun = array()){
self::$physical_path = $physical_path;
self::$website_path = $website_path;
self::$allow_sys_fun = $allow_sys_fun;
}
//調試函數
public static function __msg($str){
if(static::$debug){
echo "\n<pre>\n".print_r($str,true)."\n</pre>\n";
}
}
//解析開始時間
public static function __start(){
self::$time_start = self::__get_microtime();
}
//解析結束時間
public static function __end($re = false){
self::$time_end = self::__get_microtime();
self::$time_pass = round((self::$time_end - self::$time_start),6) * 1000;
if($re){
return self::$time_pass;
}else{
self::__msg('PASS_TIME: '.self::$time_pass.' ms');
}
}
//內部跨模塊url解析調用,如在test1.php模塊頁面中執行了Rwrite::__parseurl('/test2/show')這句,將調用test2.php模塊頁面中的show方法(Rw_test2這個class的方法)
public static function __parseurl($url = '',$fun = '',$data = NULL){
if(!empty($url)&&!empty($fun)){
$p = static::$physical_path;
if(file_exists($p.$url) || file_exists($p.$url.'.php') ){
$part = strtolower(basename( $p.$url , '.php' ));
static::$linktag = $part.'/'.$fun;
$fname = static::$pretag.$part;
if(class_exists($fname, false)){
if(method_exists($fname,$fun)){
return $fname::$fun($data);
}
}else{
include( $p.$url );
if( class_exists($fname, false) && method_exists($fname,$fun)){
return $fname::$fun($data);
}
}
}
}
}
//核心鏈接解析函數Rwrite::__parse();在頂級重寫核心定向目標index.php中的執行,意味著Rwrite自定義重寫開啟
public static function __parse($Url = ''){
self::__start();
$p = static::$physical_path;
$w = static::$website_path;
$req_execute = false;
$url_p = empty($Url) ? $_SERVER['REQUEST_URI'] : $Url;
$local = parse_url($w);
$req = parse_url($url_p);
$req_path = preg_replace('|[^\w/.\\\]|','',$req['path']);
$req_para = empty($Url) ? strstr($_SERVER['SERVER_NAME'],'.',true) : 'www';
if(empty($Url) && substr_count($_SERVER['SERVER_NAME'],'.') == 2 && $req_para != 'www'){
self::__goto($req_para,preg_replace('|^'.$local['path'].'|',"",$req_path));
return ;
}else{
$req_path_arr = empty($req_path)?array():preg_split("|[/\\\]+|",preg_replace('|^'.$local['path'].'|',"",$req_path));
$req_fun = array_pop($req_path_arr);
if(substr($req_fun,0,2)=='__'){
$req_fun = substr($req_fun,2);
}
$req_path_rearr = array_filter($req_path_arr);
self::__msg($req_path_rearr);
$req_temp = implode('/',$req_path_rearr);
$fname = $req_temp.'/'.$req_fun;
if(!empty($req_fun)&&in_array($req_fun,static::$allow_sys_fun)){
$req_fun();
}else{
if(!empty($req_fun)&&file_exists($p.$fname.'.php') ){
include( $p.$fname.'.php' );
}else{
$fname = empty($req_temp) ? 'index' : $req_temp;
if(file_exists($p.$fname.'.php') ){
include( $p.$fname.'.php' );
}else{
$fname = $req_temp.'/index';
if(file_exists($p.$fname.'.php')){
include( $p.$fname.'.php' );
}else{
//這個地方是對"個人主頁"的這種特殊鏈接定向到"profile/"了,可自己修改
//如:www.xxx.com/12/將表示www.xxx.com/profile/?uid=12或www.xxx.com/profile?uid=12
$uid = is_numeric($req_temp) ? $req_temp : strstr($req_temp, '/', true);
$ufun = is_numeric($req_temp) ? 'index' : strstr($req_temp, '/');
if(is_numeric($uid)){
self::$uid = $uid;
if(!isset($_GET['uid'])) $_GET['uid'] = $uid;
$fname = 'profile/'.$ufun;
if(file_exists($p.$fname.'.php')){
include( $p.$fname.'.php' );
}else{
header("location:".$w);
exit();
}
}else if(file_exists($p.'index.php')){
$fname = 'index';
include( $p.'index.php' );
}else{
header("location:".$w);
exit();
}
}
}
}
$ev_fname = strrpos($fname,'/')===false ? $fname : substr($fname,strrpos($fname,'/')+1);
$ev_fname = static::$pretag.$ev_fname;
if( class_exists($ev_fname, false) && method_exists($ev_fname,$req_fun)){
static::$linktag = $req_fun=='index' ? $fname.'/' : $fname.'/'.$req_fun;
if($req_fun != 'init' && method_exists($ev_fname,'init')){
$ev_fname::init();
}
$ev_fname::$req_fun();
}else if( class_exists($ev_fname, false) && method_exists($ev_fname,'index') ){
static::$linktag = $fname.'/';
if(method_exists($ev_fname,'init')){
$ev_fname::init();
}
$ev_fname::index();
}else if( $fname != 'index' && class_exists(static::$pretag.'index', false) && method_exists(static::$pretag.'index','index') ){
$ev_fname = static::$pretag.'index';
static::$linktag = 'index/';
if(method_exists($ev_fname,'init')){
$ev_fname::init();
}
$ev_fname::index();
}else{
self::__msg('Function Not Exist!');
}
}
}
self::__end();
}
//這裡是用戶自定義鏈接的解析(用數據庫存儲的解析值) 如: xiaoming.baidu.com
//數據庫中 xiaoming這個標簽指向一個人的博客 就會到了www.baidu.com/blog?uid=12或www.baidu.com/blog?uname=xiaoming(這個就看自己咋設計數據庫了)
public static function __goto($para = '',$path = ''){
$w = static::$website_path;
if(empty($para)){
exit('未知鏈接,解析失敗,不能訪問');
}
if(class_exists('Parseurl')){
$prs = Parseurl::selectone(array('tag','=',$para));
self::__msg($prs);
if(!empty($prs)){
$parastr = $prs['tag'];
$output = array();
$_GET[$prs['idtag']] = $prs['id'];
parse_str($prs['parastr'], $output);
$_GET = array_merge($_GET,$output);
$path = $prs['type'].'/'.preg_replace('|^/'.$prs['type'].'|','',$path);
self::__msg($path);
header('location:'.$w.$path.'?'.http_build_query($_GET));
exit();
}else{
header("location:".$w);
exit();
}
}else{
header("location:".$w);
exit();
}
}
}
?>
