php快速url重写实例-php手册-PHP中文網

5.30以上的版本才能使用,继承了上一个版本的快速重定向的特点(单独类,全部使用静态调用),增添了一个很重要的功能和属性可以调用其他url中的模块了也使得模块与模块间或页面与页面间的函数简化共享得以实现

.htaccess文件写法:
代码如下:
#-------------- .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):
代码如下:
//............
Rewrite::__config(
$config['path'],/*'http://xxxxx/mysite/'URL基础位置*/
$config['md_path'],/*'c:/phpsite/www/mysite/modules/'模块文件物理目录*/
array(
'phpinfo'
)
);
Rewrite::__parse();
//..........

模块文件写法:
testPk.php
代码如下:
class Rw_testPk extends Rewrite {
//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
public static function init(){
//if (!defined('SITE_PASS')){
echo self::$linktag.'
';//self::$linktag是页面解析位置路径值,会常使用.
//}
}
//当访问"http://www.45it.net/testpk/"时会执行
public static function index(){
echo 'test';
}
//当访问"http://www.45it.net/testpk/blank"时会执行或写作"http://www.45it.net/testpk/index/blank"一般"index/"都是可以被省略的
public static function blank(){}
}
?>

class.rewrite.php;
代码如下:
class Rewrite{
public static $debug = false;//是否打开调试
public static $time_pass = 0;//获得模块文件整体执行时间
public static $version = 2.2;
public static $pretag = 'Rw_';//模块文件类的名称前缀
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
protected static $time_start = 0;
protected static $time_end = 0;
protected static $physical_path = '';//模块文件的物理路径
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://www.45it.net/site/mysite
protected static $ob_contents = '';
protected static $uid = 0;//配合个人主页访问方式如http://www.45it.net/423/则是访问http://www.45it.net/profile?uid=423
//允许的系统函数如$allow_sys_fun=array('phpinfo')那么系统将允许链接访问phpinfo内容了,当http://www.45it.net/phpinfo或http://www.45it.net/......./phpinfo时就会直接执行phpinfo这个函数,不需要phpinfo.php模块文件
private static $allow_sys_fun = array();
private static function __get_microtime(){
list($usec, $sec) = explode(" ",microtime());
return ((float)$usec + (float)$sec);
}
//设置调试Rewrite::__debug(true);
public static function __debug($d = true){
static::$debug = $d;
}
//配置路径和允许函数
public static function __config($website_path = '',$physical_path = '',$allow_sys_fun = array()){
self::$physical_path = $physical_path;
self::$website_path = $website_path;
self::$allow_sys_fun = $allow_sys_fun;
}
//调试函数
public static function __msg($str){
if(static::$debug){
echo "n

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

登入後複製

n";
}
}
//解析开始时间
public static function __start(){
self::$time_start = self::__get_microtime();
}
//解析结束时间
public static function __end($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::$time_pass.' ms');
}
}
//内部跨模块url解析调用,如在test1.php模块页面中执行了Rwrite::__parseurl('/test2/show')这句,将调用test2.php模块页面中的show方法(Rw_test2这个class的方法)
public static function __parseurl($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($data);
}
}
}
}
}
//核心链接解析函数Rwrite::__parse();在顶级重写核心定向目标index.php中的执行,意味着Rwrite自定义重写开启
public static function __parse($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{
//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
//如:www.xxx.com/12/将表示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();
}
$ev_fname::index();
}else{
self::__msg('Function Not Exist!');
}
}
}
self::__end();
}
//这里是用户自定义链接的解析(用数据库存储的解析值) 如: xiaoming.baidu.com
//数据库中 xiaoming这个标签指向一个人的博客就会到了www.baidu.com/blog?uid=12或www.baidu.com/blog?uname=xiaoming(这个就看自己咋设计数据库了)
public static function __goto($para = '',$path = ''){
$w = static::$website_path;
if(empty($para)){
exit('未知链接,解析失败,不能访问');
}
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();
}
}
}
?>