shmop学习

本文主要是介绍shmop学习，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！

第一次接触这个高级函数shmop，直接上代码应该就能看明白了

<?php // Create 100 byte shared memory block with system id of 0xff3 $shm_id = shmop_open(0xff3, "c", 0644, 100); if (!$shm_id) { echo "Couldn't create shared memory segment/n"; } // Get shared memory block's size $shm_size = shmop_size($shm_id); echo "SHM Block Size: " . $shm_size . " has been created./n"; // Lets write a test string into shared memory $shm_bytes_written = shmop_write($shm_id, "my shared memory block", 0); if ($shm_bytes_written != strlen("my shared memory block")) { echo "Couldn't write the entire length of data/n"; } // Now lets read the string back $my_string = shmop_read($shm_id, 0, $shm_size); if (!$my_string) { echo "Couldn't read from shared memory block/n"; } echo "The data inside shared memory was: " . $my_string . "/n"; //Now lets delete the block and close the shared memory segment if (!shmop_delete($shm_id)) { echo "Couldn't mark shared memory block for deletion."; } shmop_close($shm_id); ?>

 

 

 

 

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