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The above line sets the content type to CompuServe GIF format (a binary image). </p> | The above line sets the content type to CompuServe GIF format (a binary image). </p> | ||
<p> | <p> | ||
'''Note:''' You can also set the content type for all output presented in response to a given URL or pattern, if it is not already set, by using the <var>TYPE</var> subcommand of the <var>[[JANUS WEB]]</var> command. In this case, a $Web_Type call would not be needed unless the type was being changed from that default. </p> | '''Note:''' You can also set the content type for all output presented in response to a given URL or pattern, if it is not already set, by using the <var>TYPE</var> subcommand of the <var>[[JANUS WEB]]</var> command. In this case, a <var>$Web_Type</var> call would not be needed unless the type was being changed from that default. </p> | ||
==See also== | ==See also== | ||
Revision as of 21:53, 18 October 2012
<section begin="desc" />Set response content type<section end="desc" />
$Web_Type sets the content type for the response.
$Web_Type is a callable $function, and it takes a single required string argument and returns a status code.
Syntax
<section begin="syntax" />%rc = $Web_Type( type ) <section end="syntax" />
| type | The content type indicator. It must be non-null. Janus Web Server makes no assumptions about what a valid type is, and it will set content type to any user-specified string. The HTTP specification (browsable at http://www.w3.org) states that content type should be case insensitive. |
|---|
Status codes
| Code | Meaning |
|---|---|
| 0 | Content type set |
| -1 | Invalid call, not a Web thread |
| -4 | Missing argument |
Examples
Sample code follows:
%x = $Web_Type('image/gif')
The above line sets the content type to CompuServe GIF format (a binary image).
Note: You can also set the content type for all output presented in response to a given URL or pattern, if it is not already set, by using the TYPE subcommand of the JANUS WEB command. In this case, a $Web_Type call would not be needed unless the type was being changed from that default.