PHP send http response GZIP large file

Question

I am trying to set up an easy MOCK http response as a PHP script. Therefore I have this code:

<?php
$filename = "output.txt.gz";
$filesize = filesize($filename);
//ignore the next 3 lines
$handle = fopen($filename, "r");
$contents = fread($handle, $filesize);
fclose($handle);
header("HTTP/1.1 200 OK");
header("Content-Encoding: gzip");
header("Content-Type: text/xml;charset=UTF-8");
header('Content-Length: '.$filesize);
header("location: ".$filename);
?>

If I'm triggering the script with small data (1mb) it works fine, but for huge content like 80mb it does not!

What is going wrong and how to solve this?

Answer 1

not the best solution, but try to put this line at the begining of the code

ini_set('memory_limit','512M');

edit

it seems you are having maybe timout issue, add this line also:

set_time_limit(0);

important: set_time_limit(0) will set the execute time to unlimited, this is not recommended but see if it solves your problem and if it does try to optimize the timeout