Postfilters

Template postfilters are PHP functions that your templates are ran through after they are compiled. Postfilters are processed in the order they are registered or loaded from the plugin directory. Smarty will pass the compiled template code as the first argument, an expect the function to return the result of the processing.

Example 7-2. using a template postfilter

<?php
// put this in your application
function add_header_comment($tpl_source)
{
    return "<?php echo \"<!-- Created by Smarty! -->\n\" ?>\n".$tpl_source;
}

// register the postfilter
$smarty->register_postfilter("add_header_comment");
$smarty->display("index.tpl");
?>

{* compiled Smarty template index.tpl *}
<!-- Created by Smarty! -->
{* rest of template content... *}