load_filter

This function can be used to load a filter plugin. The first argument specifies the type of the filter to load and can be one of the following: 'pre', 'post', or 'output'. The second argument specifies the name of the filter plugin, for example, 'trim'.

$smarty->load_filter('pre', 'trim'); // load prefilter named 'trim'
$smarty->load_filter('pre', 'datefooter'); // load another prefilter named 'datefooter'
$smarty->load_filter('output', 'compress'); // load output filter named 'compress'