Callbacks
I was having trouble making method calls with the result callbacks in getDelayed, so I emailed the developer.
If you want to use a non-static method as a callback, use the following format: array($obj, 'method'); for example:
<?php
class foo {
private $M = false;
public function __construct() {
$this->M = new Memcached();
$this->M->addServer('localhost', 11211);
$this->M->set('a', 'test');
}
public function test() {
$this->M->getDelayed(array('a'), false, array($this, 'fun'));
}
public function fun() {
echo "Great Success!";
}
}
$f = new foo();
$f->test();
?>
or, alternatively:
<?php
class foo {
public $M = false;
public function __construct() {
$this->M = new Memcached();
$this->M->addServer('localhost', 11211);
$this->M->set('a', 'test');
}
public function fun() {
echo "Great Success!";
}
}
$f = new foo();
$f->M->getDelayed(array('a'), false, array($f, 'fun'));
?>
Works great, thanks Andrei :)
Result callbacks
Result callbacks are invoked by Memcached::getDelayed or Memcached::getDelayedBykey methods for each item in the result set. The callback is passed the Memcached object and the array with the item information. The callback does not have to return anything.
Example #1 Result callback example
<?php
$m = new Memcached();
$m->addServer('localhost', 11211);
$items = array(
'key1' => 'value1',
'key2' => 'value2',
'key3' => 'value3'
);
$m->setMulti($items);
$m->getDelayed(array('key1', 'key3'), true, 'result_cb');
function result_cb($memc, $item)
{
var_dump($item);
}
?>
The above example will output something similar to:
array(3) {
["key"]=>
string(4) "key1"
["value"]=>
string(6) "value1"
["cas"]=>
float(49)
}
array(3) {
["key"]=>
string(4) "key3"
["value"]=>
string(6) "value3"
["cas"]=>
float(50)
}
add a note
User Contributed NotesResult callbacks
edwarddrapkin at gmail dot com
12-Mar-2009 01:54
12-Mar-2009 01:54