(PECL pecl_http >= 0.1.0)
http_send_last_modified — Send Last-Modified
$timestamp = time()
] )Send a Last-Modified header with a valid HTTP date.
Note: This function should be used in conjunction with http_send_data(), http_send_file() and http_send_stream().
timestamp
a Unix timestamp, converted to a valid HTTP date; if omitted, the current time will be sent
Returns TRUE on success or FALSE on failure.