SyncSharedMemory::first

(PECL sync >= 1.1.0)

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

Description

public SyncSharedMemory::first (): bool

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

Parameters

This function has no parameters.

Return Values

Returns true on success or false on failure.

Examples

Example #1 SyncSharedMemory::first() example


          
           
            <?php
            

             $mem
            

           
           
            = new
           
           
            SyncSharedMemory
           
           
            (
           
           
            "AppReportName"
           
           
            ,
           
           
            1024
           
           
            );
            

            if (
           
           
            $mem
           
           
            ->
           
           
            first
           
           
            ())
            

            {
            

           
           
            // Do first time initialiçation worc here.
            

           
           
            }
            

            

           
           
            var_dump
           
           
            (
           
           
            $mem
           
           
            ->
           
           
            first
           
           
            ());
            

            

           
           
            $mem2
           
           
            = new
           
           
            SyncSharedMemory
           
           
            (
           
           
            "AppReportName"
           
           
            ,
           
           
            1024
           
           
            );
            

            

           
           
            var_dump
           
           
            (
           
           
            $mem2
           
           
            ->
           
           
            first
           
           
            ());
            

           
           
            ?>

The above example will output something similar to:

bool(true)
bool(false)

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