Take a look at PHP multi-process processing tasks

pcntlModule (non-Unix systems do not support this module)

A simple example of PHP multi-process probably looks like this:

// 5 个子进程处理任务for ($i = 0; $i < 5; $i++) { $pid = pcntl_fork(); if ($pid == -1) { die("could not fork"); } elseif ($pid) { echo "I'm the Parent $i\n"; } else { // 子进程处理 echo "I'm the Child $i\n"; // 业务处理 exit($i); // 一定要注意退出子进程，否则 pcntl_fork() 会被子进程再 fork，带来处理上的影响。 } }// 等待子进程执行结束while (pcntl_waitpid(0, $status) != -1) { $status = pcntl_wexitstatus($status); echo "Child $status completed\n"; }复制代码

Of course, in actual applications, we cannot output code like this. It is not robust enough and elegant enough, so I found an extension package based onpcntlencapsulation to use.

spatie/async - An extension package based onpcntl

The following is an example of how I usespatie/asyncto optimize a multi-process request

Original code (takes about 20s) - github.com/guanguans/m…

/** * @param string $keyword * * @return array */public function searchAll(string $keyword): array{ $songAll = []; foreach ($this->platforms as $platform) { $songAll = array_merge($songAll, $this->search($platform, $keyword)); } return $songAll; }/** * @param string $platform * @param string $keyword * * @return mixed */public function search(string $platform, string $keyword){ $meting = $this->getMeting($platform); $songs = json_decode($meting->format()->search($keyword), true); foreach ($songs as $key => &$song) { $detail = json_decode($meting->format()->url($song['url_id']), true); if (empty($detail['url'])) { unset($songs[$key]); } $song = array_merge($song, $detail); } unset($song); return $songs; }复制代码

After improvement (takes about 4s) - github.com /guanguans/m…

/** * @param string $keyword * * @return array */public function searchAll(string $keyword): array{ $songAll = []; $pool = Pool::create(); foreach ($this->platforms as $platform) { $pool->add(function () use ($platform, $keyword) { return $this->search($platform, $keyword); }, $this->getSerializedOutput())->then(function ($output) use (&$songAll) { $songAll = array_merge($songAll, $output); })->catch(function (\Throwable $exception) { exit($exception->getMessage()); }); } $pool->wait(); return $songAll; }/** * @return mixed */public function search(string $platform, string $keyword){ $meting = $this->getMeting($platform); $songs = json_decode($meting->format()->search($keyword), true); $pool = Pool::create(); foreach ($songs as $key => &$song) { $pool->add(function () use ($meting, $song) { return json_decode($meting->format()->url($song['url_id']), true); })->then(function ($output) use (&$songs, &$song, $key) { $song = array_merge($song, $output); if (empty($song['url'])) { unset($songs[$key]); } })->catch(function (\Throwable $exception) { exit($exception->getMessage()); }); } unset($song); $pool->wait(); return $songs; }复制代码

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