据说$_server['request_uri']只能在apache才可以用（没测试过），所以只兼容apache。
http://example.com/urirouter.php/hello/world
或
http://example.com/dir/urirouter.php/hello/world
返回值： hello/world
设置.htaccess后：
http://example.com/hello/world
或
http://example.com/dir/hello/world
返回值： hello/world
$requesturi = trim($_server['request_uri'],'/');$apppath = trim(dirname($_server['script_name']),'/');//获取所在目录$filename = trim(str_replace(dirname($_server['script_name']),'', $_server['script_name']),'/');//获取文件名称echo trim(str_replace($filename,'',trim(str_replace($apppath,'',$requesturi),'/')),'/');
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rewriteengine onrewritecond %{request_filename} !-frewriterule ^ urirouter.php [qsa,l]
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