SyncSharedMemory::first
Check to see if the object is the first instance system-wide of named shared memory
説明
public bool SyncSharedMemory::first()
戻り値
成功した場合に true
を、失敗した場合に false
を返します。
例
例1 SyncSharedMemory::first example
<?php
$mem = new SyncSharedMemory("AppReportName", 1024);
if ($mem->first())
{
// Do first time initialization work here.
}
var_dump($mem->first());
$mem2 = new SyncSharedMemory("AppReportName", 1024);
var_dump($mem2->first());
?>
参考
- SyncSharedMemory::write
- SyncSharedMemory::read