Write data into shared memory block

shmop_write(Shmop $shmop, string $data, int $offset): int

shmop_write() will write a string into shared memory block.

shmop: 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.

The size of the written data.

Version	Description
8.0.0	Prior to PHP 8.0.0, `false` was returned on failure.
8.0.0	`shmop` expects a Shmop instance now; previously, a resource was expected.

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.

shmop_write