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# 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.

shmop_write() takes 3 parameters: shmid, which is the shared memory block identifier created by shmop_open(), data, a string that you want to write into shared memory block and offset, which specifies where to start writing data inside the shared memory segment.

示範 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.

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