SyncSharedMemory::write
Copy data to named shared memory
Description
public SyncSharedMemory::write(string $string = ?, int $start = 0)
Parameters
-
string
-
The data to write to shared memory.
Note:
If the size of the data exceeds the size of the shared memory, the number of
bytes written returned will be less than the length of the input.
-
start
-
The start/offset, in bytes, to begin writing.
Note:
If the value is negative, the starting position will begin at the specified
number of bytes from the end of the shared memory segment.
Return Values
An integer containing the number of bytes written to shared memory.
Examples
Example #1 SyncSharedMemory::write 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 = $mem->write("report.txt");
var_dump($result);
$result = $mem->write("report.txt", -3);
var_dump($result);
?>
The above example will output
something similar to:
See Also
- SyncSharedMemory::__construct
- SyncSharedMemory::first
- SyncSharedMemory::write
- SyncSharedMemory::read