Library for PHP to execute functions asynchronously
https://packagist.org/packages/joopschilder/php-async
src | ||
.gitignore | ||
composer.json | ||
README.md |
joopschilder/php-async
Asynchronous PHP callable processing with return values via SysV shared memory.
Requires the php-sysvshm
extension.
Works with PHP >= 5.3 due to shm_attach(...)
returning a resource instead of an int.
Note: This project is merely an experiment. It is, however, available on packagist.
If you think your project lacks witchcraft combined with black magic, just add this package to your composer.json
:
{
"require": {
"joopschilder/php-async": "dev-master"
}
}
Examples
Promises
You can actually return anything that is serializable in PHP: objects, arrays, strings, you name it.
<?php
require_once __DIR__ . '/vendor/autoload.php';
$promise = async(function() {
sleep(random_int(1, 5));
return getmypid();
});
// ... some other work
$promise->resolve();
$pid = $promise->getValue();
printf("Me (%d) and %d have worked very hard!\n", getmypid(), $pid);
The shutdown handler and destructors should take care of the rest.
Asynchronous curl requests
... though you should probably look into curl multi handles for this: curl_multi_init() on PHP.net.
<?php
require_once __DIR__ . '/vendor/autoload.php';
// Create the body for the process
$process = function(string $url) {
$handle = curl_init($url);
curl_setopt($handle, CURLOPT_FOLLOWLOCATION, 1);
curl_setopt($handle, CURLOPT_RETURNTRANSFER, 1);
$response = curl_exec($handle);
curl_close($handle);
file_put_contents(uniqid('download_'), $response);
};
// Define some urls we want to download
$urls = [
'example.com',
'example2.com',
'some.other.domain'
];
// And away we go!
foreach($urls as $url)
async($process, $url);
That's all there is to it.
What's next?
- Refactoring
- More functionality (maybe)
- Improving stability
- Add a diagram that explains this witchcraft