SyncSharedMemory::first
PHP function
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(PECL sync >= 1.1.0)
Check to see if the object is the first instance system-wide of named shared memory
Description
SyncSharedMemory::first(): bool
Retrieves the system-wide first instance status of a SyncSharedMemory object.
Parameters Parameters
Return Values
Success
Examples
SyncSharedMemory::first() example
php
<?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());
?>The above example will output something similar to:
output
bool(true)
bool(false)See Also
SyncSharedMemory::writeSyncSharedMemory::read