Question

I add the header function in the hello.php sample, as below:

<?php
   header("xxxxx: yyyyy");
   fwrite(STDOUT, "see headers.<br><br>Hello, PHP!<br>current working directory: ".getcwd());
   exit(200); // return an HTTP code (200:'OK')
?>

but there is no such header found in firebug.
Who can explain how to add additional headers in php cli with gwan?

Answer 1

Thanks to Gil and Richard,
Now, it is what i did according to your advices. PHP works in gwan with customized headers.

<?php
 $output='See headers....Hello, PHP!<br>from gwan';
   $len=strlen($output);
   fwrite(STDOUT, "HTTP/1.0\r\nContent-Type: text/html; charset=UTF-8\r\nConnection: close\r\nContent-Length: $len\r\nxxxxx: yyyyy\r\n\r\n$output");
    exit(1);
?>

i use ab -c 1000 -n 100000 http:127.0.0.1/?hello.php
The memory usage is increased by 0.7% of 2.9GiB = 0.0203GiB
The CPU usage is increased from 20% to 75% = 50% (ab run in the same machine with gwan)
I did it in my old machine intel P9300 2.26GHz x 2, ubuntu 12.04

it finished in 9.543 sec without failure
about 10,479 req/sec