php man page for http_send_content_type

HTTP_SEND_CONTENT_TYPE(3)						 1						 HTTP_SEND_CONTENT_TYPE(3)

http_send_content_type - Send Content-Type

SYNOPSIS
       bool http_send_content_type ([string  $content_type = "application/x-octetstream"])

DESCRIPTION
	Send the Content-Type of the sent entity.

       Note

	      This function should be used in conjunction with http_send_data(3), http_send_file(3) and http_send_stream(3).

PARAMETERS
	      o $content_type
		- the desired content type (primary/secondary)

RETURN VALUES
	Returns TRUE on success or FALSE on failure.

ERRORS
/EXCEPTIONS
	Raises an E_WARNING when the $content_type doesn't seem to contain a primary and a secondary part.

SEE ALSO
       http_send_data(3), http_send_file(3), http_send_stream(3), the HttpResponse class if you are using PHP 5.1.0 and above.

PHP Documentation Group 												 HTTP_SEND_CONTENT_TYPE(3)