Memcached::isPristine

(PECL memcached >= 2.0.0)

Memcached::isPristine — Check if the instance was recently created

说明

public Memcached::isPristine ( void ) : bool

Memcached::isPristine() checks if the Memcache instance was recently created.

参数

此函数没有参数。

返回值

Returns the true if instance is recently created, false otherwise.

参见

Memcached::isPersistent() - Check if a persitent connection to memcache is being used

User Contributed Notes

vick dot qi at yahoo dot com 26-Jul-2016 03:37


From the source code of contructor, the "recently" means the connection to server of the instence is recently created, that is the instance was created without a persistent_id parameter or the first to use the persistent_id.



For instance, the gives a bool(true):



$memcached = new Memcached();

$isPristine = $memcached->isPristine();

var_dump($isPristine);



This also gives a bool(true):



$memcached = new Memcached('pid1');

$isPristine = $memcached->isPristine();

var_dump($isPristine);



while this gives a bool(false):



$memcached = new Memcached('pid1');

$memcached2 = new Memcached('pid1');

$isPristine = $memcached2->isPristine();

var_dump($isPristine);

gerben at gerbs dot net 24-Dec-2015 10:18


How is the return value determined? What is the definition of 'recently'? Does this function return true if the item was stored using the current connection?