Postfilters

Postfilters

Template postfilters are PHP functions that your templates are ran through after they are compiled. Postfilters 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 compiled template code as the first argument, and expect the function to return the result of the processing.

Example 15-3. using a template postfilter

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

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

This will make the compiled Smarty template index.tpl look like:

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

See also register_postfilter(), prefilters and load_filter()

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