PHP code example of kriss / multi-process

1. Go to this page and download the library: Download kriss/multi-process library. Choose the download type require.

2. Extract the ZIP file and open the index.php.

3. Add this code to the index.php. 
    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

kriss / multi-process example snippets


use Kriss\MultiProcess\MultiProcess;
use Kriss\MultiProcess\PendingProcess;
use Symfony\Component\Process\Process;

// 调用系统命令
$results = MultiProcess::create()
    ->add('hostname')
    ->add(new Process(['ls']))
    ->add(Process::fromShellCommandline('echo 123'))
    ->add(
        PendingProcess::fromShellCommandline('pwd')
            ->setStartCallback(function ($type, $buffer) {
                echo $buffer;
            })
    );
    
var_dump($results->getOutputs());

// 调用 PHP 代码
$value = 123;
$results = MultiProcess::create()
    // callback
    ->add(function () use ($value) {
        // 支持 use 和 $this 使用
        return $value;
    })
    // 调用 SomeClass::method
    //->add([SomeClass::class, 'method'])
    ->wait();
    
var_dump($results->getOutputs());


use Kriss\MultiProcess\MultiProcess;

$filename = 'https://www.example.com/';

$startTime = microtime(true);
for ($i = 0; $i < 3; $i++) {
    file_get_contents($filename);
}
echo ('use time: ' . round(microtime(true) - $startTime, 6)) . PHP_EOL; // 3秒以上

for ($i = 0; $i < 3; $i++) {
    $processes[] = PendingProcess::fromShellCommandline("php -r \"echo file_get_contents('$filename');\"");
}
$startTime = microtime(true);
MultiProcess::create()
    ->addMulti($processes)
    ->wait();
echo ('use time: ' . round(microtime(true) - $startTime, 6)) . PHP_EOL; // 1秒多