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Page caching with templates
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The createPage() function is listed below. I have made it as simple as possible to demonstrate the topic in focus, page caching. As you see from the code we use templates as usual, and if $generateStaticPage is false the template is parsed as it normally does. The special bit about this code is when $generateStaticPage is set to true. A file is then opened for write and the template is parsed out to a variable, $output. This $output is then printed to the client and stored in a file.
function createPage( $generateStaticPage, $cachedFile = "" )
{
include_once( "template.inc" );
$t = new eZTemplate( "templates/" );
$t->set_file( "page_tpl" => "page.tpl" );
// perform calculations
$t->set_var( "template_variable", $value );
if ( $generateStaticPage == true )
{
$fp = fopen( $cachedFile, "w+" );
$output = $t->parse( $target, "page_tpl" );
// display the page contents and write it to file
print( $output );
fwrite ( $fp, $output );
fclose( $fp );
}
else
{
$t->pparse( "output", "page_tpl" );
}
} |
The next time this page is visited the pure static version of the page is served and you don't get so much load on your server.
Simple isn't it?
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