(PECL pecl_http >= 0.1.0)
http_date — Compose HTTP RFC compliant date
Compose a valid HTTP date regarding RFC 1123 looking like: Wed, 22 Dec 2004 11:34:47 GMT.
Unix timestamp; current time if omitted
Returns the HTTP date as string.
Not sure if this is a failure of documentation or a bug, but it is worth noting that this function seems to return the timestamp of the script execution by default, not the current time. So e.g. this:
will output the exact same string twice.