php - Run console command background after login Symfony2 -

i want run custom symfony2 console command background after login. make listener , try use process run command @ background function not work well. here code

class loginlistener {     protected $doctrine;     private $recommendjobservice;     public function __construct(doctrine $doctrine)     {         $this->doctrine = $doctrine;     }      public function onlogin(interactiveloginevent $event)     {         $user = $event->getauthenticationtoken()->getuser();          if($user)         {         $process = new process('ls -lsa');         $process->start(function ($type, $buffer) {                 $command = $this->recommendjobservice;                 $input = new argvinput();                 $output = new consoleoutput();                 $command->execute($input, $output);                 echo "1";          });         }     }     public function setrecommendjobservice($recommendjobservice) {       $this->recommendjobservice = $recommendjobservice;     } } 

is there wrong code? thx helping.

any variables need access inside anonymous function have use use statement. further $this conflict due scope.

$that = $this; $process->start(function ($type, $buffer) use ($that) {     $command = $that->recommendjobservice;     $input = new argvinput();     $output = new consoleoutput();     $command->execute($input, $output);     echo "1"; }); 

also can take anonymous function , test outside of start() method this.

$closure = function ($type, $buffer) use ($that) {     $command = $that->recommendjobservice;     $input = new argvinput();     $output = new consoleoutput();     $command->execute($input, $output);     echo "1"; }; $closure(); 

then can put debugging in there , see if runs. i'm not sure if echo way deal console. recommend monolog or $output->writeln($text); command.