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    SyncSharedMemory::first

    (PECL sync >= 1.1.0)

    SyncSharedMemory::first — Check to see if the object is the first instance system-wide of named shared memory

    Descrição

    public SyncSharedMemory::first ( ) : bool

    Retrieves the system-wide first instance status of a SyncSharedMemory object.

    Parâmetros

    Esta função não possui parâmetros.

    Valor Retornado

    A boolean of TRUE if the object is the first instance system-wide, FALSE otherwise.

    Exemplos

    Exemplo #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());
    ?>

    O exemplo acima irá imprimir algo similar à:

    bool(true)
bool(false)

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