php Operation memcached cache to add delete modify and look up data implementation code

Core code:

<?php
	
	// Create 1 A memcache Object instance 
	$memcache = new Memcache;
	if(!$memcache->connect("127.0.0.1",11211)){
		die(' Connection failed ');
	}
	if($memcache->set('key1',"xian",MEMCACHE_COMPRESSED,60)){
		echo 'sucess!';
	}// Deposit value , Among them xian String, can also be an array, an object, but not a resource 

	$val = $memcache->get('key1');// Query to get value 
	echo $val;
	$memcache->replace('key1','beijing',MEMCACHE_COMPRESSED,60);// Modify 
	   $memcache->delete('key1');// Delete 
?>