Streamed Output of Console Command Line per Line

gistfile1.php

<?php

use Symfony\Bundle\FrameworkBundle\Console\Application;
use Symfony\Component\Console\Input\ArrayInput;
use Symfony\Component\Console\Output\StreamOutput;
use Symfony\Component\Console\Command\Command;  

class ExportController extends Controller
{  
  public function streamingAction(){
    
	@ini_set('zlib.output_compression',0);
	@ini_set('implicit_flush',1);
	@ob_end_clean();
	set_time_limit(0);
    
	$application = new Application($this->get('kernel'));
	$response = new StreamedResponse(function() use ($application) {
	  
		$name = 'ayalon:progress';
		$params = array();
		
		array_unshift($params, $name);
		
		$application->setAutoExit(false);
		
		$input = new ArrayInput($params);
		$input->setInteractive(false);
		
		$output = new StreamOutput(fopen('php://stdout', 'w'));
		
		$application->run($input, $output);
		  
	
	    });
  	
  	return $response;
  }
  
  public function exportAction($store){
  	
  	$name = 'ayalon:progress';
  	$params = array();
  	
  	array_unshift($params, $name);
  	
  	$application = new Application($this->get('kernel'));
  	$application->setAutoExit(false);
  	
  	$input = new ArrayInput($params);
  	$input->setInteractive(false);
  	
  	$fp = fopen('php://temp/maxmemory:5242880', 'r+');
  	$output = new StreamOutput($fp);
  	
  	echo('start: ' .  microtime() . '<br>');
  	
  	$application->run($input, $output);
  	
  	echo('run: ' .  microtime(). '<br>');
  	
  	$response = new StreamedResponse(function() use($fp, $output) {
  			while (!feof($fp)) {
  				echo('end: ' . microtime());
  				echo 'start';
  				//$line = stream_get_line($fp, 100000000, "\n");
  				$line = fgets($fp);
  				//$content = stream_get_contents($fp);
  				echo $line;
  				ob_flush();
  				flush();
  				//echo $content;
  				//print_r($fp);
  				echo 'end';
  			}
  		});
	      
 	  return $response;
  	
}