http_date(3) php man page | unix.com

HTTP_DATE(3)								 1							      HTTP_DATE(3)

http_date - Compose HTTP RFC compliant date

SYNOPSIS
       string http_date ([int  $timestamp])

DESCRIPTION
	Compose a valid HTTP date regarding RFC 1123 looking like: Wed, 22 Dec 2004 11:34:47 GMT.

PARAMETERS
	      o $timestamp
		- Unix timestamp; current time if omitted

RETURN VALUES
	Returns the HTTP date as string.

SEE ALSO
       date(3).

PHP Documentation Group 													      HTTP_DATE(3)