[英]How do you use memcache with PHP
我终于在家用电脑上运行了memcache,所以我终于可以开始使用它了!
虽然我正在尝试使用代码,但我没有一个好的开始
php.net @memcache-set我无法获得他们发布的示例代码
我试过这个:
<?php
/* procedural API */
$memcache_obj = memcache_connect('memcache_host', 11211);
memcache_set($memcache_obj, 'var_key', 'some variable', 0, 30);
echo memcache_get($memcache_obj, 'var_key');
?>
然后
<?php
/* OO API */
$memcache_obj = new Memcache;
$memcache_obj->connect('memcache_host', 11211);
$memcache_obj->set('var_key', 'some really big variable', MEMCACHE_COMPRESSED, 50);
echo $memcache_obj->get('var_key');
?>
并从上面的代码中得到了这些错误;
Warning: Memcache::connect() [memcache.connect]: Can't connect to memcache_host:11211, A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond. (10060) in C:\webserver\htdocs\test\memcache\index.php on line 36
Warning: Memcache::set() [memcache.set]: Failed to extract 'connection' variable from object in C:\webserver\htdocs\test\memcache\index.php on line 42
Warning: Memcache::get() [memcache.get]: Failed to extract 'connection' variable from object in C:\webserver\htdocs\test\memcache\index.php on line 44
然后我在网上找到了这个代码,它确实有效
<?php
$memcache = new Memcache;
$memcache->connect('localhost', 11211) or die ("Could not connect");
$tmp_object = new stdClass;
$tmp_object->str_attr = 'test';
$tmp_object->int_attr = 123;
// add cache
$memcache->set('key', $tmp_object, false, 30) or die ("Failed to save data at the server");
echo "Store data in the cache (data will expire in 30 seconds)<br/>\n";
// get cache
$get_result = $memcache->get('key');
echo "Data from the cache:<br/>\n";
var_dump($get_result);
?>
我怎样才能从PHP.net中获取示例?
此外,我很想看到任何涉及memcache的emample代码,你可能想要分享我真的很感激看到一些有用的例子
您是否意识到需要将“memcache_host”替换为您的主机名和/或localhost? 还是我完全忽略了这一点? 此外,尝试telnet localhost 11211
,然后telnet your-memcache-host-name 11211
,看看你是否得到相同的结果(你应该)。
如果你想使用Memcached with PHP进行数据库查询,这里有一个我用过的例子:
$memcache = new Memcache;
$memcache->connect('127.0.0.1', 11211);
$qry = QUERY;
$C = connection to ur database;
findValue($qry, $c);
function findValue($qry,$c)
{
$id = md5($qry);
if ($gotten = $memcache->get($id)) {
echo $id." retrieved from memcached </br> ";
return $gotten;
} else {
### Daemon running but it was NOT cached
echo " from database (was NOT cached)";
# Never mind - fetch it and store for next time!
$gotten = dbfetch($qry,$c);
$memcache->set($id,$gotten);
return $gotten;
}
}
我正在使用php的月经来减少我的数据库命中做这样的事情
$memcache = new Memcache;
//Ip address and and port number.
$memcache->connect('192.168.xxx.xxx', 'xxxx');
//Fetching data from memcache server
$arrobj = $memcache->get("arrobj");
if( false == is_array( $arrobj ) ) {
$arrobj = data retrieve from Database.
//Storing data in memcache server for 100 sec.
$memcache->set( "arrobj", $arrobj, MEMCACHE_COMPRESSED, 100 );
}
您也可以访问http://php.net/manual/en/memcache.set.php获取示例!
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