PHP 7.3.14 Released

SyncSharedMemory::__construct

(PECL sync >= 1.1.0)

SyncSharedMemory::__constructConstructs a new SyncSharedMemory object

Beschreibung

public SyncSharedMemory::__construct ( string $name , int $size )

Constructs a named shared memory object.

Parameter-Liste

name

The name of the shared memory object.

Hinweis:

If the name already exists, it must be able to be opened by the current user that the process is running as or an exception will be thrown with a meaningless error message.

size

The size, in bytes, of shared memory to reserve.

Hinweis:

The amount of memory cannot be resized later. Request sufficient storage up front.

R├╝ckgabewerte

The new SyncSharedMemory object. An exception is thrown if the shared memory object cannot be created or opened.

Beispiele

Beispiel #1 SyncSharedMemory::__construct() example

<?php
// You will probably need to protect shared memory with other synchronization objects.
// Shared memory goes away when the last reference to it disappears.
$mem = new SyncSharedMemory("AppReportName"1024);
if (
$mem->first())
{
    
// Do first time initialization work here.
}

$result $mem->write(json_encode(array("name" => "my_report.txt")));
?>

Siehe auch

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