php man page for http_send_content_disposition

HTTP_SEND_CONTENT_DISPOSITION(3)					 1					  HTTP_SEND_CONTENT_DISPOSITION(3)

http_send_content_disposition - Send Content-Disposition

SYNOPSIS
       bool http_send_content_disposition (string  $filename, [bool  $inline = false])

DESCRIPTION
	Send  the Content-Disposition. The Content-Disposition header is very useful if the data actually being sent came from a file or something
       similar, that should be "saved" by the client/user (i.e. by the browser's "Save as..." popup window).

       Note

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

PARAMETERS
	      o $filename
		- the file name the "Save as..." dialog should display

	      o $inline
		- if set to TRUE and the user agent knows how to handle the content type, it will probably not cause the popup window to be shown

RETURN VALUES
	Returns TRUE on success or FALSE on failure.

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_DISPOSITION(3)