看看PHP 多进程处理任务-php教程

pcntl 模块（非 Unix 类零碎没有支持此模块）

一个 PHP 多过程简略例子大略是这个样子：

// 5 个子过程解决义务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 { // 子过程解决
        echo "I'm the Child $i\n";        // 营业解决
        exit($i); // 肯定要留意加入子过程，不然 pcntl_fork() 会被子过程再 fork，带来解决上的影响。
    }
}// 期待子过程执行完结while (pcntl_waitpid(0, $status) != -1) {
    $status = pcntl_wexitstatus($status);    echo "Child $status completed\n";
}复制代码

当然实际使用中咱们不克不及够这样输入代码，不敷强壮，也不敷优雅，我以是找了个基于 pcntl 封装的扩大包来应用。

spatie/async - 基于 pcntl 封装的扩大包

如下是我应用 spatie/async 来优化一个多过程申请的例子

原代码（耗时 20s 阁下）- 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

改良后（耗时 4s 阁下）- 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

想理解更多编程学习，敬请存眷php培训栏目！

以上就是看看PHP 多过程解决义务的具体内容，更多请存眷资源魔其它相干文章！