Semaphore Functions
PHP Manual

shm_get_var

Returns a variable from shared memory

Description

mixed shm_get_var(SysvSharedMemory $shm, int $key)

shm_get_var returns the variable with a given key, in the given shared memory segment. The variable is still present in the shared memory.

Parameters

shm

A shared memory segment obtained from shm_attach.

key

The variable key.

Return Values

Returns the variable with the given key.

Changelog

Version Description
8.0.0 shm expects a SysvSharedMemory instance now; previously, a resource was expected.

See Also

  • shm_has_var
  • shm_put_var