PHP fast url rewriting example code-PHP Tutorial-php.cn

It can only be used with version 5.30 or above. It inherits the characteristics of fast redirection of the previous version (separate class, all using static calls), and adds a very important function and attribute, which can call modules in other URLs, which also makes Simplified sharing of functions between modules or pages is achieved. .htaccess file writing method:

#------------- .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 ---- -----------

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Introduction of rewriting function: Write the following code at the end of index.php in the root directory of the site, and rewriting will be enabled (normal conditions: 1. Apache's rewrite configuration is successful, and .htaccess support is enabled. 2. The .htaccess file in the site root directory is set up. 3. The class.rewrite.php class file is loaded in the front part of index.php. 4. Page module The file location and writing are correct): code show as below:

//......
Rewrite::__config(
$config['path'],/*'http://xxxxx/mysite/'URL base location */
$config['md_path'],/*'c:/phpsite/www/mysite/modules/'module file physical directory*/
array(
'phpinfo'
)
);
Rewrite::__parse( );
//..........

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Module file writing method: testPk.php

class Rw_testPk extends Rewrite {
//This is the leading function. As long as the testpk page is accessed, this will definitely be executed. It can be used to control function access permissions within this page or global variables of this page.
public static function init(){
//if (!defined('SITE_PASS')){
echo self::$linktag.'
';//self::$linktag is the page parsing location Path value, will be used frequently.
//}
}
//Will be executed when accessing "http://bbs.it-home.org/testpk/"
public static function index(){
echo 'test' ;
}
//When accessing "http://bbs.it-home.org/testpk/blank", it will execute or write "http://bbs.it-home.org/testpk/index/blank" normally "index/" can be omitted
public static function blank(){}
}
?>

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class.rewrite.php; code show as below:

class Rewrite{
public static $debug = false;//Whether to turn on debugging
public static $time_pass = 0;//Get the overall execution time of the module file
public static $version = 2.2;
public static $pretag = 'Rw_'; //Name prefix of module file class
public static $linktag = 'index'; //Page link tag, used to mark which link is parsed, and can be used to control various menu effects and link access rights
protected static $time_start = 0;
protected static $time_end = 0;
protected static $physical_path = '';//The physical path of the module file
protected static $website_path = '';//The module file’s physical path Site path, because it is possible to enlarge the site to a subdirectory of the site, such as: http://bbs.it-home.org/site/mysite
protected static $ob_contents = '';
protected static $uid = 0;// In conjunction with personal homepage access methods such as http://bbs.it-home.org/423/, access http://bbs.it-home.org/profile?uid=423
//Allowed system functions such as $allow_sys_fun =array('phpinfo') then the system will allow the link to access the phpinfo content. When http://bbs.it-home.org/phpinfo or http://bbs.it-home.org/...... ./phpinfo will directly execute the phpinfo function without the need for the phpinfo.php module file
private static $allow_sys_fun = array();
private static function __get_microtime(){
list($usec, $sec) = explode(" ",microtime());
return ((float)$usec + (float)$sec);
}
//Set debugging Rewrite::__debug(true);
public static function __debug($d = true){
static::$debug = $d;
}
//Configuration path and allow function
public static function __config($website_path = '',$physical_path = '',$allow_sys_fun = array()){
self:: $physical_path = $physical_path;
self::$website_path = $website_path;
self::$allow_sys_fun = $allow_sys_fun;
}
//Debug function
public static function __msg($str){
if(static::$ debug){
echo "n
```
n".print_r($str,true)."n
```
n";
}
}
//Parsing start time
public static function __start(){
self ::$time_start = self::__get_microtime();
}
//Parse end time
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');
}
}
//Internal cross-module url parsing call, such as executing Rwrite::__parseurl('/test2/show' in the test1.php module page ) This sentence will call the show method in the test2.php module page (the method of the Rw_test2 class)
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($data);
}
}
}
}
}
//The core link parsing function Rwrite::__parse(); is executed in the top-level rewrite core directional target index.php, which means that Rwrite custom rewriting is turned on
public static function __parse($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{
//This place directs the special link to "personal homepage" to "profile/", you can modify it yourself
//For example: www.xxx.com/12/ will mean www.xxx.com/ profile/?uid=12 or 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();
}
$ev_fname::index();
}else{
self::__msg('Function Not Exist!');
}
}
}
self::__end();
}
//Here is the analysis of user-defined links (using the analysis value stored in the database) such as: xiaoming.baidu.com
//The xiaoming tag in the database points to a person's blog. When you get to www.baidu.com/blog?uid=12 or www.baidu.com/blog?uname=xiaoming (this depends on how you design the database)
public static function __goto($para = '',$path = ' '){
$w = static::$website_path;
if(empty($para)){
exit('Unknown link, parsing failed, cannot be accessed');
}
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();
}
}
}
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