Description:
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The http_response_code() function should return number (int) and text (string) of response. Currently only the int of the response code is output.

$http_response_headers works for streams in this way; http_response_code should also include this functionality.

Test script:
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Current:

var_dump(http_response_code());

// int(200)


Suggested:

var_dump(http_response_code)());

// int(200)
// string(2) "OK"


Current: 

var_dump(http_response_code());

// int(301)


Suggested:

var_dump(http_response_code());

// int(301)
// string(17) "Moved Permanently"

Expected result:
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HTTP/1.1 200 OK
HTTP/1.1 301 Moved Permanently
etc.

Actual result:
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200
301