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Example code of sqonk/phext-detach

Informations about the package phext-detach

PHEXT Detach

Minimum PHP Version

Detach is a library for running tasks inside of a PHP script in parallel using forked processes. It clones a seperate process (based on the parent) and executes the requested callback.

It is light weight and relies on little more than the PCNTL and APCu PHP extensions plus a minor set of composer packages.

Detach is also minimalist in nature with just a small set of functions and classes to memorise. There is no event system and no architecture to learn, allowing it to fit easily within an existing code structure.

See the examples for a quick start guide.

While the spawned tasks have the ability to return data back to the parent there is also the option of using Channels, a loose implementation of channels from the Go language, which provide a simple way of allowing independent processes to send and receive data between one another.

Channels can also be used as logic gates for controlling the execution of various tasks by forcing them to wait for incoming data where required.

Install

Via Composer

Updating past V1.0

Release 1.1 changes the value returned from both a Channel and a BufferedChannel when they are closed. Previously they would return NULL, now they return the constant CHAN_CLOSED. This was done in order to clearly differentiate between null values intentionally inserted into a channel and channel closure.

Code written previously akin to the following:

Should now be written as follows:

Alternatively, for the purposes of maintaining simpler syntax, you can now use a generator:

Updating from V0.4

Release 0.5+ adjusts the way Dispatcher::map() works so that it automatically builds and starts the TaskMap, returning the result of ->start() on the map object. Its parameters have also been expanded to accept the various TaskMap configuration options directly, in preparation for named parameters in PHP8.

Updating from V0.3

Release 0.4+ is a significant update from previous versions. It will break existing code that was built to use V0.3.

Most notably, the class that was formerly named Channel has been renamed to BufferedChannel and a new Channel class has taken its place. You can read more about both classes below.

Also, later in development, the file-based data storage for transferring data between tasks was switched to APCu, now requiring the extension in addition to PCNTL.

Documentation

API Reference now available.

Examples

Skim through the example code for a quick start guide on the basic concepts.

Credits

Theo Howell

Please see original concept of pnctl Threading by Tudor Barbu @ motanelu/php-thread

License

The MIT License (MIT). Please see License File for more information.

All versions of phext-detach with dependencies

PHP Build Version
Package Version
Requires php Version ^8
ext-pcntl Version *
ext-posix Version *
ext-apcu Version *
sqonk/phext-core Version ^1.1
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