Connecting to memcached “what port to use?” (php)

Question

I've installed memcached perfectly and i can created a new instance but i don't understand if I'm connection to the right port... I always get a false return from get(key) Here is my code,

    $sql = "SELECT * FROM users";
    $key = md5('q'.$sql); //create an index key for memcache
    $result = $memcache->get($key);//lookup value in memcache
    //check if we got something back
    if($result == null) {
        echo "nothing back";
        $r = mysql_query($sql) or die(mysql_error()." : $sql");//fetch from database
        if(mysql_num_rows($r)> 0) {
        echo "returned";
            $people = array();
            while ($person = mysql_fetch_assoc($r)) {
                $people[] = $person;
            }
            $memcache->set($key,$people,0,3600);//store in memcache
        }
    }
    print_r($result);

Answer 1

Here is the connect statement $memcache = new Memcache; $memcache->connect('127.0.0.1',11211) or die ("Could not connect");

you dont have a memcached connect statement.

Memcached default port is widely considered 11211.

use something like http://livebookmark.net/memcachephp/memcachephp.zip to test your memcached/php install.

Answer 2

By the default, memcached listen on port 11211. Which port you use to connect and what's the exactly error you get?