后端开发|php教程
thinkphp,路由规则,伪静态,apache重写
后端开发-php教程
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<?php
//thinkphp 路由定义规则
$route = array(
ews/:action/:year\d/:month/:day=> ews/read?year=:2&month=:3&day=:4,
ews/:action^delete|update|insert/:year\d/:month/:day=>array( ews/read?extra=:2&status=1,year=:2&month=:3&day=:4),
);
$url = /index.php/news/read//2/21/extraparam/test.html;
//后缀名
$extension = html;
//可知: $_SERVER[PATH_INFO] = ews/read//2/21/extraparam/test.html;
$regx = ews/read//2/21/extraparam/test.html;
//循环匹配路由规则
foreach($route as $key=>$value){
//如果匹配成功，则不继续匹配
if(parseUrlRule($key,$value,$regx,$extension))
break;
}
//运行结果： 打印$_GET
//Array
// (
//[actionName] => read
//[moduleName] => news
//[extra] =>
//[status] => 1
//[extraparam] => test
//[year] =>
//[month] => 2
//[day] => 21
//[finalUrl] => news/read?extra=&status=1&extraparam=test&year=&month=2&day=21
// )
// [Finished in 0.6s]
//相当于访问: /news/read?extra=&status=1&extraparam=test&year=&month=2&day=21
//在部署时会把index.php隐藏，开启apache的重写模块
//重写规则 ： RewriteRule ^(.+)$ /index.php/$1
//开启后，apache会自动把 http://news/read//2/21/extraparam/test.html转换为 http://index.php/news/read//2/21/extraparam/test.html
/**
* @$rule string 路由规则
* @$route string 规则映射的新地址
* @$regx string 地址栏pathinfo字符串
* @$extension stirng 伪静态拓展名
* return bool
*/
function parseUrlRule($rule,$route,$regx,$extension=null){
//去掉后缀名
!is_null($extension) && $regx = str_replace(..$extension,\,$regx);
//把路由规则和地址,分割到数组中，然后逐项匹配
$ruleArr = explode(/,$rule);
$regxArr = explode(/,$regx);
//$route以数组的格式传递，则取第一个
$url = is_array($route) ? $route[0] : $route;
$match =true;
//匹配检测
foreach($ruleArr as $key=>$value){
if(strpos($value,:)===0){
if(substr($value,-2)==\\d && !is_numeric($regxArr[$key])){
$match = false;
break;
}elseif(strpos($value,^)){
$stripArr = explode(|,trim(strstr($value,^),^));
if(in_array($regxArr[$key],$stripArr)){
$match = false;
break;
}
}
//静态项不区分大小写
}elseif(strcasecmp($value, $regxArr[$key])!==0) {
$match = false;
break;
}
}
//匹配成功
if($match){
//把动态变量写入到数组$matches 中，同时去除静态匹配项
foreach($ruleArr as $key=>$value){
if(strpos($value,:)===0){
//获取动态变量，作为数组下标
if(substr($value,-2,1)==\\\)
$matchKey = substr($value,1,-2);
elseif($pos=strpos($value,^))
$matchKey =substr($value,1,$pos-1);
else
$matchKey = substr($value,1);
$matches[$matchKey] = array_shift($regxArr);
}else
array_shift($regxArr); //去除静态匹配项
}
//获取数组中的值，目的是配合子模式进行替换
$values = array_values($matches);
//正则匹配替换,正则需要用e作为修饰符
$url = preg_replace(/:(\d+)/e,$values[\\1-1],$url);
//解析url 格式: 分组/模块/操作?key1=value1&key2=value2
if(strpos($url,?)!==false){
// 分组/模块/操作?key1=value1&key2=value2
$arr = parse_url($url);
$paths = explode(/,$arr[path]);
parse_str($arr[query],$queryArr);
}elseif(strpos($url,/)!==false) //分组/模块/操作)
$paths = explode(/,$url);
else // key1=value1&key2=value2
parse_str($url,$queryArr);
//获取 分组 模块 操作
if(!empty($paths)){
$var[actionName] = array_pop($paths);
$var[moduleName] = array_pop($paths);
if(!empty($paths)){
$groupList = Home,Admin;
$temp = array_pop($paths);
if(in_array($temp,explode(,,$groupList)))
$var[groupName] = $temp;
}
}
//合并的到GET数组中，方便全局调用
$_GET = array_merge($_GET,$var);
//合并参数
if(isset($queryArr))
$_GET = array_merge($_GET,$queryArr);
//匹配url中剩余的参数
preg_replace(/(\w+)\/([^,\/]+)/e,$tempArr[\\\1\]=\\\2\\,implode(/,$regxArr));
if(!empty($tempArr))
$_GET = array_merge($_GET,$tempArr);
//route是数组的话
if(is_array($route)){
$route[1]=preg_replace(/:(\d+)/e,$values[\\1-1],$route[1]);
parse_str($route[1],$var);
$_GET = array_merge($_GET,$var);
strpos($url,?)!==false ? $der =& : $der=?;
//最终写入到$_GET中的参数，包括三个部分
//1.地址栏剩余参数
//2.路由地址中的参数
//3.$route是数组时的第二个参数
if(!empty($tempArr))
$var = array_merge($tempArr,$var);
$url .=$der.http_build_query($var);
}
$_GET[finalUrl] = $url;
//保证$_REQUEST 也能访问
$_REQUEST = array_merge($_REQUEST,$_GET);
//结果
print_r($_GET);
return true;
}
return $match;
}
//以下是正则路由代码：
$rule = /news\/read\/(\d+)\/(\d+)\/(\d+)/;
$route = ews/read?year=:1&month=:2&day=:3;
$regx = ews/read//2/21/extraparam/test.html;
$extension = html;
parseUrlRuleRegx($rule,$route,$regx,$extension);
/**
* @$rule string 路由规则
* @$route string 规则映射的新地址
* @$regx string 地址栏pathinfo字符串
* @$extension stirng 伪静态拓展名
* return bool
*/
function parseUrlRuleRegx($rule,$route,$regx,$extension=null){
!is_null($extension) && $regx = str_replace(..$extension,\,$regx);
$url = is_array($route) ? $route[0] : $route;
if(preg_match($rule,$regx,$matches)){
$url = preg_replace(/:(\d+)/e,$matches[\\1],$url);
}else
return false;
//解析url 格式: 分组/模块/操作?key1=value1&key2=value2
if(strpos($url,?)!==false){
// 分组/模块/操作?key1=value1&key2=value2
$arr = parse_url($url);
$paths = explode(/,$arr[path]);
parse_str($arr[query],$queryArr);
}elseif(strpos($url,/)!==false) //分组/模块/操作)
$paths = explode(/,$url);
else // key1=value1&key2=value2
parse_str($url,$queryArr);
//获取 分组 模块 操作
if(!empty($paths)){
$var[actionName] = array_pop($paths);
$var[moduleName] = array_pop($paths);
if(!empty($paths)){
$groupList = Home,Admin;
$temp = array_pop($paths);
if(in_array($temp,explode(,,$groupList)))
$var[groupName] = $temp;
}
}
//合并的到GET数组中，方便全局调用
$_GET = array_merge($_GET,$var);
if(isset($queryArr))
$_GET = array_merge($_GET,$queryArr);
//匹配剩余的参数
$regx = str_replace($matches[0],\,$regx);
preg_replace(/(\w+)\/([^,\/]+)/e,$tempArr[\\\1\]=\\\2\\,$regx);
if(!empty($tempArr)){
$_GET = array_merge($_GET,$tempArr);
strpos($url,?)!==false ? $der=&:$der=?;
$url .=$der.http_build_query($tempArr);
}
if(is_array($route)){
$route[1] = preg_replace(/:(\d+)/e,$matches[\\1],$route[1]);
parse_str($route[1],$var);
if(!empty($var)){
!empty($queryArr) && $var =array_merge($queryArr,$var);
$_GET= array_merge($_GET,$var);
}
strpos($url,?)!==false ? $der=&:$der=?;
$url .=$der.http_build_query($var);
}
$_GET[finalUrl] = $url;
print_r($_GET);
$_REQUEST = array_merge($_GET,$_REQUEST);
return true;
}
//运行结果：
//Array
// (
//[actionName] => read
//[moduleName] => news
//[year] =>
//[month] => 2
//[day] => 21
//[extraparam] => test
//[finalUrl] => news/read?year=&month=2&day=21&extraparam=test
// )
// [Finished in 0.1s]
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