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-Template Functions {#plugins.functions}
-==================
-
-void
-
-smarty\_function\_
-
-name
-
-array
-
-\$params
-
-object
-
-\$template
-
-All [attributes](#language.syntax.attributes) passed to template
-functions from the template are contained in the `$params` as an
-associative array.
-
-The output (return value) of the function will be substituted in place
-of the function tag in the template, eg the
-[`{fetch}`](#language.function.fetch) function. Alternatively, the
-function can simply perform some other task without any output, eg the
-[`{assign}`](#language.function.assign) function.
-
-If the function needs to assign some variables to the template or use
-some other Smarty-provided functionality, it can use the supplied
-`$template` object to do so eg `$template->foo()`.
-
-
-    <?php
-    /*
-     * Smarty plugin
-     * -------------------------------------------------------------
-     * File:     function.eightball.php
-     * Type:     function
-     * Name:     eightball
-     * Purpose:  outputs a random magic answer
-     * -------------------------------------------------------------
-     */
-    function smarty_function_eightball($params, Smarty_Internal_Template $template)
-    {
-        $answers = array('Yes',
-                         'No',
-                         'No way',
-                         'Outlook not so good',
-                         'Ask again soon',
-                         'Maybe in your reality');
-
-        $result = array_rand($answers);
-        return $answers[$result];
-    }
-    ?>
-
-which can be used in the template as:
-
-    Question: Will we ever have time travel?
-    Answer: {eightball}.
-        
-
-
-    <?php
-    /*
-     * Smarty plugin
-     * -------------------------------------------------------------
-     * File:     function.assign.php
-     * Type:     function
-     * Name:     assign
-     * Purpose:  assign a value to a template variable
-     * -------------------------------------------------------------
-     */
-    function smarty_function_assign($params, Smarty_Internal_Template $template)
-    {
-        if (empty($params['var'])) {
-            trigger_error("assign: missing 'var' parameter");
-            return;
-        }
-
-        if (!in_array('value', array_keys($params))) {
-            trigger_error("assign: missing 'value' parameter");
-            return;
-        }
-
-        $template->assign($params['var'], $params['value']);     
-        
-    }
-    ?>
-
-          
-
-See also: [`registerPlugin()`](#api.register.plugin),
-[`unregisterPlugin()`](#api.unregister.plugin).