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Example code of sj-i/ffi-zts-parallel

Informations about the package ffi-zts-parallel

ffi-zts-parallel

NTS-hosted wrapper around pecl/parallel that runs through sj-i/ffi-zts.

Gives a plain non-thread-safe PHP CLI access to real OS-thread parallelism via parallel\Runtime, without replacing the system PHP build. See docs/DESIGN.md in the core package for the full design.

Install

Both sj-i/ffi-zts and sj-i/ffi-zts-parallel ship as Composer plugins. On install, each downloads the pre-built binary matching your host's PHP minor / CPU arch / libc:

Trusting the plugins

Composer 2.2+ asks you to trust a new plugin before running it. In interactive shells you get a (y/N) prompt on first install. In CI / non-interactive environments, whitelist both up front:

Manual install / retry

If either plugin was skipped (--no-plugins, network outage, binary not yet published for a new PHP minor), retry the binary fetch on demand from the root project:

Usage

A minimal worker.php that fans out four parallel\Runtimes inside the embed:

All four workers report the same pid (same process) and zts=true (running in the embedded ZTS interpreter).

opcache.preload (2.x / PHP 8.5)

PHP 8.5 links opcache statically into libphp.so, so opcache.preload works under the embed out of the box and the preloaded classes / functions propagate into every parallel\Runtime worker thread:

See docs/PERFORMANCE.md in the core repo for fork-vs-embed measurements.

Read-only / containerised environments

If the vendor directory is not writable at runtime (baked into a container image, mounted read-only, etc.), Parallel::bootInMemory() skips the disk cache and patches + loads parallel.so via memfd_create(2):

Versioning

Major tracks the host PHP minor:

Minor / patch tracks upstream parallel releases plus wrapper fixes; bumping just the parallel version is composer update sj-i/ffi-zts-parallel.

Requirements

macOS, Windows, and musl are out of scope for the currently supported major lines; see the design doc for why.

All versions of ffi-zts-parallel with dependencies

PHP Build Version
Package Version
Requires php Version >=8.5,<8.6
composer-plugin-api Version ^2.0
ext-ffi Version *
sj-i/ffi-zts Version ^2.0
Composer command for our command line client (download client) This client runs in each environment. You don't need a specific PHP version etc. The first 20 API calls are free. Standard composer command

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