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register_function()

register_function() -- dynamically register template function plugins

Description

void register_function ( string name, mixed impl [, bool cacheable [, mixed cache_attrs]])

Pass in the template function name, followed by the PHP function name that implements it.

The php-function callback impl can be either

a string containing the function name
an array of the form array(&$object, $method) with &$object being a reference to an object and $method being a string containing the method-name
an array of the form array(&$class, $method) with $class being a classname and $method being a class method of that class.

cacheable and cache_attrs can be omitted in most cases. See Controlling Cacheability of Plugins' Output on how to use them properly.

Example 13-1. register_function()


<?php
$smarty->register_function('date_now', 'print_current_date');

function print_current_date($params, &$smarty)
{
  if(empty($params['format'])) {
    $format = "%b %e, %Y";
  } else {
    $format = $params['format'];
  }
  return strftime($format,time());
}
?>

And in the template

{date_now}

{* or to format differently *}
{date_now format="%Y/%m/%d"}

See also unregister_function() and Plugin functions .

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register_function()

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