Prefilters
Template prefilters are PHP functions that your templates are ran through
before they are compiled. This is good for preprocessing your templates
to remove unwanted comments, keeping an eye on what people are putting
in their templates, etc. Prefilters can be either
registered or loaded from
the plugins directory by using
load_filter() function or by
setting
$autoload_filters variable.
Smarty will pass the template source code as the first argument, and
expect the function to return the resulting template source code.
Пример 15-2. using a template prefilter
<?php
// put this in your application
function remove_dw_comments($tpl_source, &$smarty)
{
return preg_replace("/<!--#.*-->/U","",$tpl_source);
}
// register the prefilter
$smarty->register_prefilter("remove_dw_comments");
$smarty->display("index.tpl");
?>
{* Smarty template index.tpl *}
<!--# this line will get removed by the prefilter -->
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