PHP 获取服务器详细信息

<ul class="sys-info-list">
<li>
<label class="res-lab">操作系统</label><span class="res-info"><?PHP echo php_uname('s'); ?></span>
</li>
<li>
<label class="res-lab">运行环境</label><span class="res-info"><?PHP echo $_SERVER ['SERVER_SOFTWARE']; ?></span>
</li>
<li>
<label class="res-lab">服务器域名/IP</label><span class="res-info"><?PHP echo  $_SERVER['SERVER_NAME'].' [ '.gethostbyname($_SERVER['SERVER_NAME']).' ]'; ?></span>
</li>
<li>
<label class="res-lab">PHP运行方式</label><span class="res-info"><?PHP echo php_sapi_name();?></span>
</li>
<li>
<label class="res-lab">Zend版本</label><span class="res-info"><?PHP echo zend_version(); ?></span>
</li>
<li>
<label class="res-lab">ThinkPHP版本</label><span class="res-info"><?PHP echo THINK_VERSION; ?></span>
</li>
<li>
<label class="res-lab">通信协议</label><span class="res-info"><?PHP echo $_SERVER['SERVER_PROTOCOL']; ?></span>
</li>
<li>
<label class="res-lab">最大上传限制</label><span class="res-info"><?PHP echo get_cfg_var ("upload_max_filesize")?get_cfg_var ("upload_max_filesize"):"不允许上传附件"; ?></span>
</li>
<li>
<label class="res-lab">最大执行时间</label><span class="res-info"> <?PHP echo get_cfg_var("max_execution_time")."秒 "; ?></span>
</li>

<li>
<label class="res-lab">脚本运行占用最大内存</label><span class="res-info"><?PHP echo get_cfg_var ("memory_limit")?get_cfg_var("memory_limit"):"无" ?></span>
</li>

<li>
<label class="res-lab">WEB服务端口</label><span class="res-info"><?php echo $_SERVER['SERVER_PORT'];?></span>
</li>
<li>
<label class="res-lab">网站根目录</label><span class="res-info"><?php echo $_SERVER["DOCUMENT_ROOT"];?></span>
</li>
<li>
<label class="res-lab">浏览器信息</label><span class="res-info"><?php echo substr($_SERVER['HTTP_USER_AGENT'], 0, 40);?></span>
</li>
<li>
<label class="res-lab">剩余空间</label><span class="res-info"><?php echo round((disk_free_space(".")/(1024*1024)),2).'M';?></span>
</li>
<li>
<label class="res-lab">北京时间</label><span class="res-info"><?PHP date_default_timezone_set (PRC); echo date("Y年m月d日 H:i:s"); ?></span>
</li>

4000
</ul>