How to test memcached in PHP

<?php
	$nemcache = new memcached;
	$memcache -> connetct(&#39;192.168.1.10&#39;) or die ("Could not connect Memcached Server");
	$memcache -> set (&#39;key&#39;,&#39;Connect Memcached Server sussucfull&#39;);
	$get = $memcache -> get(&#39;key&#39;);
	echo $get;
?>

<?php
	$nemcache = new memcached;
	$memcache -> connetct(&#39;192.168.1.10&#39;) or die ("Could not connect Memcached Server");
	//$memcache -> set (&#39;key&#39;,&#39;Connect Memcached Server sussucfull&#39;);  //设置
	//$memcache -> replace(&#39;key&#39;,&#39;New Connect Memcached Server sussucfull&#39;);
	$memcache -> delete(&#39;key&#39;);	//删除
	$get = $memcache -> get(&#39;key&#39;);//查询
	echo $get;
?>