PHP Manual
Function Reference
Process Control Extensions
Semaphore
Introduction
Installing/Configuring
Predefined Constants
Semaphore Functions
SysvMessageQueue
SysvSemaphore
SysvSharedMemory
SysvMessageQueue
SysvSharedMemory
Semaphore
PHP Manual
The SysvSemaphore class
Introduction
A fully opaque class which replaces a
sysvsem
resource as of PHP 8.0.0.
Class synopsis
final
SysvSemaphore