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Php how to use the shmop function to create shared memory to reduce load, many novices are not very clear about this, in order to help you solve this problem, the following editor will explain in detail for you, people with this need can come to learn, hope you can get something.

PHP has two sets of interfaces for memory sharing. One is shm, which is actually variable sharing, which serializes object variables and then stores them. It's easy to use, but serialized storage doesn't make sense for efficiency-first memory access operations. The other is shmop, which is common to Linux and Windows, but it is a little weaker than shm. On Linux, these functions are directly implemented by calling shm* series functions, and the same calls are also implemented on Winodows through the encapsulation of system functions.

To create a shared memory segment, you need to use the function shmop, so you need to turn on the extension.

Shmop main function

Shmop_open (create or open shared memory block), shmop_write (write data to shared memory block), shmop_read (read data from shared memory block), shmop_size (get the size of shared memory block), shmop_close (close shared memory block), shmop_delete (delete shared memory block)

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