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?
Memcached::isPristine
(PECL memcached >= 2.0.0)
Memcached::isPristine — Check if the instance was recently created
说明
Memcached::isPristine() checks if the Memcache instance was recently created.
参数
此函数没有参数。
返回值
Returns true if instance is recently created, false otherwise.
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User Contributed Notes 2 notes
gerben at gerbs dot net ¶
8 years ago
vick dot qi at yahoo dot com ¶
8 years ago
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);
