examples -> example

example/fork.php

@@ -0,0 +1,35 @@
+#!/usr/bin/env php
+<?php
+require dirname(__DIR__).'/vendor/autoload.php';
+
+use Amp\Parallel\Forking\Fork;
+
+Amp\execute(function () {
+    $context = Fork::spawn(function () {
+        print "Child sleeping for 4 seconds...\n";
+        sleep(4);
+
+        yield $this->send('Data sent from child.');
+
+        print "Child sleeping for 2 seconds...\n";
+        sleep(2);
+
+        return 42;
+    });
+
+    $timer = Amp\repeat(1000, function () use ($context) {
+        static $i;
+        $i = $i ? ++$i : 1;
+        print "Demonstrating how alive the parent is for the {$i}th time.\n";
+    });
+
+    try {
+        printf("Received the following from child: %s\n", yield $context->receive());
+        printf("Child ended with value %d!\n", yield $context->join());
+    } catch (Throwable $e) {
+        print "Error from child!\n";
+        print $e."\n";
+    } finally {
+        Amp\cancel($timer);
+    }
+});