我的博客使用的是虚拟主机,也想实现url优化,但是我没有服务器权限,怎么办?
很简单,我们可以从$_SERVER[”REQUEST_URI”]和$_SERVER['PATH_INFO']来下手:

原网站访问地址是 http://www.yes1000.com/test.php?a=1&b=2&c=3
使用了 mode_rewrite 函数后,就可以用 http://www.yes1000.com/test.php/a/1/b/2/c/3来访问了,而且程序基本不用修改.

function  mod_rewrite(){
         if ( isset ( $_SERVER [ ' PATH_INFO ' ])){
                 $url   =   substr ( $_SERVER [ ' PATH_INFO ' ] , 1 );
                 $url   =   explode ( ' / ' , $url );
                 foreach  ( $url   as   $key   => $value ){
                         if ( $key % 2 != 1 ){
                                 if ( $value != '' ) $_GET [ $value ] = $url [ $key + 1 ];
                                 $querystring [] = $value . ' = ' . $url [ $key + 1 ];
                        }
                }
                 $_SERVER [ ' QUERY_STRING ' ] = implode ( " & " , $querystring );
                 $_SERVER [ ' PHP_SELF ' ] = substr ( $_SERVER [ ' PHP_SELF ' ] , 0 , strpos ( $_SERVER [ ' PHP_SELF ' ] , ' .php ' ) + 4 );
                 $_SERVER [ ' REQUEST_URI ' ] = $_SERVER [ ' PHP_SELF ' ] . ' ? ' . $_SERVER [ ' QUERY_STRING ' ];
        }
}

mod_rewrite();

http : // www.yes1000.com/test.php/a/1/b/2/c/3
echo   '

 ' ;
 echo   " GET数组如下： " ;
 print_r ( $_GET );
 Array 
(
    [a]  =>   1 
    [b]  =>   2 
    [c]  =>   3 
)