How do you use memcache with PHP

Question

I finally got memcache running on my home pc so I can start developing with it at last!

I am not off to a good start though I am trying to use the code on

php.net @ memcache-set I am unable to get either example code to work that they post

I tried this:

<?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');
?>

---

And then

<?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');
?>

---

And got these errors from the code above;

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

---

I then found this code on the net somewhere and it does work

<?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);
?>

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How can I get the examples from PHP.net to work though?

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Also I would love to see any emample code involving memcache you might want to share I would really appreciate seeing some working examples

Answer 1

You do realise that you need to replace "memcache_host" with your hostname and/or localhost? Or am I missing the point completly? Also, try to telnet localhost 11211 and then telnet your-memcache-host-name 11211 and see if you get the same result (you should).