SyncSharedMemory::write
(PECL sync >= 1.1.0)
SyncSharedMemory::write — Copy data to named shared memory
Description
public SyncSharedMemory::write ([ string $string [, integer $start = 0 ]] )Copies data to named shared memory.
Parameters
string
The data to write to shared memoy.
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:
int(10)
int(3)See Also
- SyncSharedMemory::__construct() - Constructs a new SyncSharedMemory object
- SyncSharedMemory::first() - Check to see if the object is the first instance system-wide of named shared memory
- SyncSharedMemory::write()
- SyncSharedMemory::read() - Copy data from named shared memory
← SyncSharedMemory::size
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