$Web NoCache: Difference between revisions

Revision as of 23:44, 16 October 2012

<section begin="desc" />Set HTTP response headers so fresh page displayed<section end="desc" />

$Web_NoCache sets various HTTP response headers so that the browser will display the new version of the response page, regardless of any cached versions.

$Web_NoCache does not take any arguments and it returns a numeric status code. It is a callable $function (see "Calling Sirius Mods $functions").

Syntax

<section begin="syntax" />%rc = $Web_NoCache <section end="syntax" />

Syntax terms

%rc

A numeric status code:

Code	Meaning
0	Completed successfully
-1	Not a web thread

Usage notes

$Web_NoCache is useful if you know that the page contains new information that the web user should see.

Examples

* Ensure new version of page is seen: %X = $Web_NoCache

@@ Line 2: / Line 2: @@
 <span class="pageSubtitle"><section begin="desc" />Set HTTP response headers so fresh page displayed<section end="desc" /></span>
+$Web_NoCache sets various HTTP response headers so that the browser will display the new version of the response page, regardless of any cached versions.
+$Web_NoCache does not take any arguments and it returns a numeric status code. It is a callable $function (see [[Calling_Sirius_Mods_$functions|"Calling Sirius Mods $functions"]]).
-$Web_NoCache sets various HTTP response headers so that the browser will display the new version of the response page, regardless of any cached versions.
 ==Syntax==
 <p class="syntax"><section begin="syntax" />%rc = $Web_NoCache
 <section end="syntax" /></p>
+===Syntax terms===
-$Web_NoCache does not take any arguments and it returns a numeric status code. It is a callable $function (see [[Calling_Sirius_Mods_$functions|"Calling Sirius Mods $functions"]]).
+<table class="syntaxTable">
+<tr><th>%rc</th>
+<td>A numeric status code:
 <table class="syntaxTable">
 <tr><th>Code</th>
@@ Line 18: / Line 21: @@
 <tr><th>-1</th>
 <td>Not a web thread</td></tr>
+</table></td></tr>
 </table>
-<p class="caption">$WEB_NOCACHE return codes</p>
+==Usage notes==
+$Web_NoCache is useful if you know that the page contains new information that the web user should see.
-$Web_NoCache is useful if you know that the page contains new information that the web user should see.
+==Examples==
-<p class="code"> * Ensure new version of page is seen:
+<p class="code">* Ensure new version of page is seen:
- %X = $Web_NoCache
+%X = $Web_NoCache
 </p>
-$Web_NoCache is only available in Versions 6.3 and later of the ''[[Sirius Mods]]''.
 [[Category:Janus Web Server $functions|$Web_NoCache]]