Zend incompatibility: http_response_code should work in CLI mode

[Majkl578]

PHP allows using http_response_code() in CLI mode without any error. HHVM raises a warning each time it is used and does not allow changing response code (always FALSE).

test.php:

var_dump(http_response_code());
http_response_code(295);
var_dump(http_response_code());

cli:

$ php test.php 
bool(false)
int(295)
$ hhvm test.php 
HipHop Warning: Unable to access response code, no transport in <path>/test.php on line X
bool(false)
HipHop Warning: Unable to access response code, no transport in <path>/test.php on line X
HipHop Warning: Unable to access response code, no transport in <path>/test.php on line X
bool(false)

$ hhvm --version
HipHop VM v2.3.0-dev (rel)
Compiler: heads/master-0-g050c081b0e7abdda2c03fdb97b7a4b8d92a409f8
Repo schema: 71f997a147ebe07bafbd50086dd4e61c509513c4

[scannell]

@Majkl578, thanks for reporting this. Feel free to submit a PR if you (or anyone else reading this) gets to this before we do -- it looks like you're already working on a fix.

[Majkl578]

@scannell: Unfortunately I am just fixing our PHP framework (most popular one in Czech Republic btw.) to work with HHVM's current state, my C++ knowledge is not as good to provide fixes directly for HHVM.