shmop_write
(PHP 4 >= 4.0.4, PHP 5)
shmop_write — Write data into shared memory block
Description
   int shmop_write
    ( int $shmid
   , string $data
   , int $offset
   )
  shmop_write() will write a string into shared memory block.
Parameters
- shmid
- 
      The shared memory block identifier created by shmop_open() 
- data
- 
      A string to write into shared memory block 
- offset
- 
      Specifies where to start writing data inside the shared memory segment. 
Return values
The size of the written data , or FALSE on failure.
Examples
Example#1 Writing to shared memory block
<?php
$shm_bytes_written = shmop_write($shm_id, $my_string, 0);
?>
This example will write data inside $my_string into shared memory block, $shm_bytes_written will contain the number of bytes written.