PHP script execute show results during execution - php

Question

How can I make that when I execute PHP script from my browser on webserver it shows results of that script while it's still executing (the code has many curls and it takes about 30 minutes to fully process). I have two servers and on one it shows every "echo" when it's called, but on the other server it shows all after 30 minutes, when script is fully executed. Both servers are running on apache, php 5.6
code:
<?php
error_reporting('E_ALL');
ini_set('error_reporting', 'E_ALL');
set_time_limit ( 2);
$i=0;
$handle = fopen("filmyNasze.txt", "r");
if ($handle) {
while (($line = fgets($handle)) !== false) {
$line = explode("##", $line);
$nazwafilmu = trim($line[0]);
$linkfilmu = trim($line[1]);
$linkfilmu = 'http://xxx.pl' . $linkfilmu;
$ch = curl_init();
curl_setopt($ch, CURLOPT_TIMEOUT, 10);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_URL, $linkfilmu);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
curl_setopt($ch, CURLOPT_HTTPHEADER, array("Cookie: cda.player=html5"));
curl_exec($ch);
$result = curl_exec($ch);
curl_close($ch);
libxml_use_internal_errors(true);
$doc2 = new DOMDocument();
$doc2->loadHTML($result);
$divid = str_replace('/video/', '', trim($line[1]));
foreach( $doc2->getElementsByTagName('div') as $div ) {
if($div->getAttribute('id') == 'mediaplayer' . $divid) {
$array = json_decode($div->getAttribute('player_data'), true);
//echo $array["video"]["file"] . " ## ";
}
}
echo $nazwafilmu . ' ## ' . trim($line[1]) . ' ## ' . $array["video"]["file"] . '<br />';
}
fclose($handle);
}
else {
die('brak pliku .txt');
}

Answer 1

You can flush PHP's output buffer using ob_flush() and flush().
http://php.net/manual/en/function.flush.php
<?php
ob_start();
echo 'Something';
ob_flush();
flush();
ob_end_flush();