结果回调

结果 callable 由 Memcached::getDelayed() 或 Memcached::getDelayedBykey() 方法对结果集中的每个项目进行调用。回调函数可以接收到一个 Memcached 对象合一个数组描述的元素信息，此回调函数不需要返回任何信息。

示例 #1 结果回调示例

<?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);
}
?>

以上示例的输出类似于：

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)
}

发现了问题？

了解如何改进此页面 • 提交拉取请求 • 报告一个错误
＋添加备注

用户贡献的备注 1 note

up
3
edwarddrapkin at gmail dot com
15 years ago
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 :)
＋添加备注

备份地址：http://www.lvesu.com/blog/php/memcached.callbacks.result.php