[Process] Allow non-blocking start with PhpProcess

src/Symfony/Component/Process/PhpProcess.php

@@ -55,16 +55,9 @@ class PhpProcess extends Process
     }
 
     /**
-     * Runs the process.
+     * {@inheritdoc}
-     *
-     * @param Closure|string|array $callback A PHP callback to run whenever there is some
-     *                                       output available on STDOUT or STDERR
-     *
-     * @return integer The exit status code
-     *
-     * @api
      */
-    public function run($callback = null)
+    public function start($callback = null)
     {
         if (null === $this->getCommandLine()) {
             if (false === $php = $this->executableFinder->find()) {
@@ -73,6 +66,6 @@ class PhpProcess extends Process
             $this->setCommandLine($php);
         }
 
-        return parent::run($callback);
+        return parent::start($callback);
     }
 }

src/Symfony/Component/Process/Tests/PhpProcessTest.php

@@ -0,0 +1,21 @@
+<?php
+
+namespace Symfony\Component\Process\Tests;
+
+use Symfony\Component\Process\PhpProcess;
+
+class PhpProcessTest extends \PHPUnit_Framework_TestCase
+{
+
+    public function testNonBlockingWorks()
+    {
+        $expected = 'hello world!';
+        $process = new PhpProcess(<<<PHP
+<?php echo '$expected';
+PHP
+        );
+        $process->start();
+        $process->wait();
+        $this->assertEquals($expected, $process->getOutput());
+    }
+}