pcntl_fork

<?php         posix_setpgid(0, 0);



        for ($i = 1; $i <= 20; $i++) {

            $pid = pcntl_fork();



            if (! $pid) {

                $files = new Filesystem;

<?php     {

        $this->tearDownRedis();



        if ($pid = pcntl_fork() > 0) {

            $this->setUpRedis();

            $this->setQueue($driver, 'default', null, 60, 10);

            $this->assertEquals(12, unserialize(json_decode($this->queue->pop()->getRawBody())->data->command)->i);

<?php     {

        [$socketToParent, $socketToChild] = Connection::createPair();



        $processId = pcntl_fork();



        if ($this->currentlyInChildTask($processId)) {

            $socketToChild->close();

<?php     protected function forkSendSignal($signal)

    {

        $currentPid = posix_getpid();

        $childPid = pcntl_fork();

        if ($childPid == -1) {

            $this->fail("Failed to fork child process!");

        } else if ($childPid === 0) {