Smarty

Complexity

Total Complexity

218

Size/Duplication

Total Lines	1895
Duplicated Lines	0 %

Importance

Changes

0

59 Methods

Rating	Name	Duplication	Size	Complexity
A	register_outputfilter()	0	4	1
A	display()	0	3	1
A	register_prefilter()	0	4	1
A	__construct()	0	4	2
A	_get_filter_name()	0	9	3
A	assign()	0	11	5
A	is_cached()	0	15	3
F	fetch()	0	192	43
A	unregister_compiler_function()	0	3	1
A	load_filter()	0	14	5
B	_smarty_include()	0	41	6
A	get_template_vars()	0	10	3
A	assign_by_ref()	0	4	2
A	_get_auto_id()	0	7	4
A	unregister_block()	0	3	1
A	unregister_object()	0	3	1
A	unregister_postfilter()	0	3	1
A	register_function()	0	4	1
A	clear_assign()	0	7	3
A	unregister_function()	0	3	1
A	clear_compiled_tpl()	0	12	2
F	_fetch_resource_info()	0	71	21
A	unregister_outputfilter()	0	3	1
A	unregister_prefilter()	0	3	1
B	append_by_ref()	0	12	7
A	register_resource()	0	16	3
A	_is_compiled()	0	23	6
B	_parse_resource_name()	0	51	10
A	_dequote()	0	7	4
A	_process_compiled_include_callback()	0	7	1
A	config_load()	0	4	1
A	register_postfilter()	0	4	1
A	_compile_resource()	0	25	4
A	template_exists()	0	4	1
A	get_registered_object()	0	8	3
A	_get_compile_path()	0	4	1
A	register_block()	0	4	1
A	register_object()	0	6	1
A	_smarty_cache_attrs()	0	13	2
A	_read_file()	0	11	5
A	_eval()	0	3	1
A	_include()	0	6	2
A	clear_config()	0	8	2
A	get_config_vars()	0	10	4
A	register_modifier()	0	4	1
A	clear_all_assign()	0	3	1
B	_compile_source()	0	55	5
A	_get_plugin_filepath()	0	5	1
A	unregister_resource()	0	3	1
A	clear_cache()	0	21	4
A	_get_auto_filename()	0	24	4
A	_run_mod_handler()	0	13	2
A	clear_all_cache()	0	3	1
A	unregister_modifier()	0	3	1
A	_trigger_fatal_error()	0	12	5
C	append()	0	29	14
A	_unlink()	0	8	3
A	trigger_error()	0	4	1
A	register_compiler_function()	0	4	1

<?php

/**
 * Project:     Smarty: the PHP compiling template engine
 * File:        Smarty.class.php
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * For questions, help, comments, discussion, etc., please join the
 * Smarty mailing list. Send a blank e-mail to
 * smarty-discussion-subscribe@googlegroups.com
 *
 * @link http://www.smarty.net/
 * @copyright 2001-2005 New Digital Group, Inc.
 * @author Monte Ohrt <monte at ohrt dot com>
 * @author Andrei Zmievski <andrei@php.net>
 * @package Smarty
 * @version 2.6.31-dev
 */

/* $Id$ */

/**
 * DIR_SEP isn't used anymore, but third party apps might
 */
if(!defined('DIR_SEP')) {
    define('DIR_SEP', DIRECTORY_SEPARATOR);
}

/**
 * set SMARTY_DIR to absolute path to Smarty library files.
 * if not defined, include_path will be used. Sets SMARTY_DIR only if user
 * application has not already defined it.
 */

if (!defined('SMARTY_DIR')) {
    define('SMARTY_DIR', dirname(__FILE__) . DIRECTORY_SEPARATOR);
}

if (!defined('SMARTY_CORE_DIR')) {
    define('SMARTY_CORE_DIR', SMARTY_DIR . 'internals' . DIRECTORY_SEPARATOR);
}

define('SMARTY_PHP_PASSTHRU',   0);
define('SMARTY_PHP_QUOTE',      1);
define('SMARTY_PHP_REMOVE',     2);
define('SMARTY_PHP_ALLOW',      3);

/**
 * @package Smarty
 */
class Smarty
{
    /**#@+
     * Smarty Configuration Section
     */

    /**
     * The name of the directory where templates are located.
     *
     * @var string
     */
    var $template_dir    =  'templates';

    /**
     * The directory where compiled templates are located.
     *
     * @var string
     */
    var $compile_dir     =  'templates_c';

    /**
     * The directory where config files are located.
     *
     * @var string
     */
    var $config_dir      =  'configs';

    /**
     * An array of directories searched for plugins.
     *
     * @var array
     */
    var $plugins_dir     =  array('plugins');

    /**
     * If debugging is enabled, a debug console window will display
     * when the page loads (make sure your browser allows unrequested
     * popup windows)
     *
     * @var boolean
     */
    var $debugging       =  false;

    /**
     * When set, smarty does uses this value as error_reporting-level.
     *
     * @var integer
     */
    var $error_reporting  =  null;

    /**
     * This is the path to the debug console template. If not set,
     * the default one will be used.
     *
     * @var string
     */
    var $debug_tpl       =  '';

    /**
     * This determines if debugging is enable-able from the browser.
     * <ul>
     *  <li>NONE => no debugging control allowed</li>
     *  <li>URL => enable debugging when SMARTY_DEBUG is found in the URL.</li>
     * </ul>
     * @link http://www.foo.dom/index.php?SMARTY_DEBUG
     * @var string
     */
    var $debugging_ctrl  =  'NONE';

    /**
     * This tells Smarty whether to check for recompiling or not. Recompiling
     * does not need to happen unless a template or config file is changed.
     * Typically you enable this during development, and disable for
     * production.
     *
     * @var boolean
     */
    var $compile_check   =  true;

    /**
     * This forces templates to compile every time. Useful for development
     * or debugging.
     *
     * @var boolean
     */
    var $force_compile   =  false;

    /**
     * This enables template caching.
     * <ul>
     *  <li>0 = no caching</li>
     *  <li>1 = use class cache_lifetime value</li>
     *  <li>2 = use cache_lifetime in cache file</li>
     * </ul>
     * @var integer
     */
    var $caching         =  0;

    /**
     * The name of the directory for cache files.
     *
     * @var string
     */
    var $cache_dir       =  'cache';

    /**
     * This is the number of seconds cached content will persist.
     * <ul>
     *  <li>0 = always regenerate cache</li>
     *  <li>-1 = never expires</li>
     * </ul>
     *
     * @var integer
     */
    var $cache_lifetime  =  3600;

    /**
     * Only used when $caching is enabled. If true, then If-Modified-Since headers
     * are respected with cached content, and appropriate HTTP headers are sent.
     * This way repeated hits to a cached page do not send the entire page to the
     * client every time.
     *
     * @var boolean
     */
    var $cache_modified_check = false;

    /**
     * This determines how Smarty handles "<?php ... ?>" tags in templates.
     * possible values:
     * <ul>
     *  <li>SMARTY_PHP_PASSTHRU -> print tags as plain text</li>
     *  <li>SMARTY_PHP_QUOTE    -> escape tags as entities</li>
     *  <li>SMARTY_PHP_REMOVE   -> remove php tags</li>
     *  <li>SMARTY_PHP_ALLOW    -> execute php tags</li>
     * </ul>
     *
     * @var integer
     */
    var $php_handling    =  SMARTY_PHP_PASSTHRU;

    /**
     * This enables template security. When enabled, many things are restricted
     * in the templates that normally would go unchecked. This is useful when
     * untrusted parties are editing templates and you want a reasonable level
     * of security. (no direct execution of PHP in templates for example)
     *
     * @var boolean
     */
    var $security       =   false;

    /**
     * This is the list of template directories that are considered secure. This
     * is used only if {@link $security} is enabled. One directory per array
     * element.  {@link $template_dir} is in this list implicitly.
     *
     * @var array
     */
    var $secure_dir     =   array();

    /**
     * These are the security settings for Smarty. They are used only when
     * {@link $security} is enabled.
     *
     * @var array
     */
    var $security_settings  = array(
                                    'PHP_HANDLING'    => false,
                                    'IF_FUNCS'        => array('array', 'list',
                                                               'isset', 'empty',
                                                               'count', 'sizeof',
                                                               'in_array', 'is_array',
                                                               'true', 'false', 'null'),
                                    'INCLUDE_ANY'     => false,
                                    'PHP_TAGS'        => false,
                                    'MODIFIER_FUNCS'  => array('count'),
                                    'ALLOW_CONSTANTS'  => false,
                                    'ALLOW_SUPER_GLOBALS' => true
                                   );

    /**
     * This is an array of directories where trusted php scripts reside.
     * {@link $security} is disabled during their inclusion/execution.
     *
     * @var array
     */
    var $trusted_dir        = array();

    /**
     * The left delimiter used for the template tags.
     *
     * @var string
     */
    var $left_delimiter  =  '{';

    /**
     * The right delimiter used for the template tags.
     *
     * @var string
     */
    var $right_delimiter =  '}';

    /**
     * The order in which request variables are registered, similar to
     * variables_order in php.ini E = Environment, G = GET, P = POST,
     * C = Cookies, S = Server
     *
     * @var string
     */
    var $request_vars_order    = 'EGPCS';

    /**
     * Indicates wether $HTTP_*_VARS[] (request_use_auto_globals=false)
     * are uses as request-vars or $_*[]-vars. note: if
     * request_use_auto_globals is true, then $request_vars_order has
     * no effect, but the php-ini-value "gpc_order"
     *
     * @var boolean
     */
    var $request_use_auto_globals      = true;

    /**
     * Set this if you want different sets of compiled files for the same
     * templates. This is useful for things like different languages.
     * Instead of creating separate sets of templates per language, you
     * set different compile_ids like 'en' and 'de'.
     *
     * @var string
     */
    var $compile_id            = null;

    /**
     * This tells Smarty whether or not to use sub dirs in the cache/ and
     * templates_c/ directories. sub directories better organized, but
     * may not work well with PHP safe mode enabled.
     *
     * @var boolean
     *
     */
    var $use_sub_dirs          = false;

    /**
     * This is a list of the modifiers to apply to all template variables.
     * Put each modifier in a separate array element in the order you want
     * them applied. example: <code>array('escape:"htmlall"');</code>
     *
     * @var array
     */
    var $default_modifiers        = array();

    /**
     * This is the resource type to be used when not specified
     * at the beginning of the resource path. examples:
     * $smarty->display('file:index.tpl');
     * $smarty->display('db:index.tpl');
     * $smarty->display('index.tpl'); // will use default resource type
     * {include file="file:index.tpl"}
     * {include file="db:index.tpl"}
     * {include file="index.tpl"} {* will use default resource type *}
     *
     * @var array
     */
    var $default_resource_type    = 'file';

    /**
     * The function used for cache file handling. If not set, built-in caching is used.
     *
     * @var null|string function name
     */
    var $cache_handler_func   = null;

    /**
     * This indicates which filters are automatically loaded into Smarty.
     *
     * @var array array of filter names
     */
    var $autoload_filters = array();

    /**#@+
     * @var boolean
     */
    /**
     * This tells if config file vars of the same name overwrite each other or not.
     * if disabled, same name variables are accumulated in an array.
     */
    var $config_overwrite = true;

    /**
     * This tells whether or not to automatically booleanize config file variables.
     * If enabled, then the strings "on", "true", and "yes" are treated as boolean
     * true, and "off", "false" and "no" are treated as boolean false.
     */
    var $config_booleanize = true;

    /**
     * This tells whether hidden sections [.foobar] are readable from the
     * tempalates or not. Normally you would never allow this since that is
     * the point behind hidden sections: the application can access them, but
     * the templates cannot.
     */
    var $config_read_hidden = false;

    /**
     * This tells whether or not automatically fix newlines in config files.
     * It basically converts \r (mac) or \r\n (dos) to \n
     */
    var $config_fix_newlines = true;
    /**#@-*/

    /**
     * If a template cannot be found, this PHP function will be executed.
     * Useful for creating templates on-the-fly or other special action.
     *
     * @var string function name
     */
    var $default_template_handler_func = '';

    /**
     * The file that contains the compiler class. This can a full
     * pathname, or relative to the php_include path.
     *
     * @var string
     */
    var $compiler_file        =    'Smarty_Compiler.class.php';

    /**
     * The class used for compiling templates.
     *
     * @var string
     */
    var $compiler_class        =   'Smarty_Compiler';

    /**
     * The class used to load config vars.
     *
     * @var string
     */
    var $config_class          =   'Config_File';

/**#@+
 * END Smarty Configuration Section
 * There should be no need to touch anything below this line.
 * @access private
 */
    /**
     * where assigned template vars are kept
     *
     * @var array
     */
    var $_tpl_vars             = array();

    /**
     * stores run-time $smarty.* vars
     *
     * @var null|array
     */
    var $_smarty_vars          = null;

    /**
     * keeps track of sections
     *
     * @var array
     */
    var $_sections             = array();

    /**
     * keeps track of foreach blocks
     *
     * @var array
     */
    var $_foreach              = array();

    /**
     * keeps track of tag hierarchy
     *
     * @var array
     */
    var $_tag_stack            = array();

    /**
     * configuration object
     *
     * @var Config_file
     */
    var $_conf_obj             = null;

    /**
     * loaded configuration settings
     *
     * @var array
     */
    var $_config               = array(array('vars'  => array(), 'files' => array()));

    /**
     * md5 checksum of the string 'Smarty'
     *
     * @var string
     */
    var $_smarty_md5           = 'f8d698aea36fcbead2b9d5359ffca76f';

    /**
     * Smarty version number
     *
     * @var string
     */
    var $_version              = '2.6.31';

    /**
     * current template inclusion depth
     *
     * @var integer
     */
    var $_inclusion_depth      = 0;

    /**
     * for different compiled templates
     *
     * @var string
     */
    var $_compile_id           = null;

    /**
     * text in URL to enable debug mode
     *
     * @var string
     */
    var $_smarty_debug_id      = 'SMARTY_DEBUG';

    /**
     * debugging information for debug console
     *
     * @var array
     */
    var $_smarty_debug_info    = array();

    /**
     * info that makes up a cache file
     *
     * @var array
     */
    var $_cache_info           = array();

    /**
     * default file permissions
     *
     * @var integer
     */
    var $_file_perms           = 0644;

    /**
     * default dir permissions
     *
     * @var integer
     */
    var $_dir_perms               = 0771;

    /**
     * registered objects
     *
     * @var array
     */
    var $_reg_objects           = array();

    /**
     * table keeping track of plugins
     *
     * @var array
     */
    var $_plugins              = array(
                                       'modifier'      => array(),
                                       'function'      => array(),
                                       'block'         => array(),
                                       'compiler'      => array(),
                                       'prefilter'     => array(),
                                       'postfilter'    => array(),
                                       'outputfilter'  => array(),
                                       'resource'      => array(),
                                       'insert'        => array());


    /**
     * cache serials
     *
     * @var array
     */
    var $_cache_serials = array();

    /**
     * name of optional cache include file
     *
     * @var string
     */
    var $_cache_include = null;

    /**
     * indicate if the current code is used in a compiled
     * include
     *
     * @var string
     */
    var $_cache_including = false;

    /**
     * plugin filepath cache
     *
     * @var array
     */
    var $_filepaths_cache = array();
    /**#@-*/
    /**
     * The class constructor.
     */
    public function __construct()
    {
      $this->assign('SCRIPT_NAME', isset($_SERVER['SCRIPT_NAME']) ? $_SERVER['SCRIPT_NAME']
                    : @$GLOBALS['HTTP_SERVER_VARS']['SCRIPT_NAME']);
    }

    /**
     * assigns values to template variables
     *
     * @param array|string $tpl_var the template variable name(s)
     * @param mixed $value the value to assign
     */
    function assign($tpl_var, $value = null)

It is generally recommended to explicitly declare the visibility for methods.

    {
        if (is_array($tpl_var)){
            foreach ($tpl_var as $key => $val) {
                if ($key != '') {
                    $this->_tpl_vars[$key] = $val;
                }
            }
        } else {
            if ($tpl_var != '')
                $this->_tpl_vars[$tpl_var] = $value;
        }
    }

    /**
     * assigns values to template variables by reference
     *
     * @param string $tpl_var the template variable name
     * @param mixed $value the referenced value to assign
     */
    function assign_by_ref($tpl_var, &$value)

It is generally recommended to explicitly declare the visibility for methods.

    {
        if ($tpl_var != '')
            $this->_tpl_vars[$tpl_var] = &$value;
    }

    /**
     * appends values to template variables
     *
     * @param array|string $tpl_var the template variable name(s)
     * @param mixed $value the value to append
     */
    function append($tpl_var, $value=null, $merge=false)

It is generally recommended to explicitly declare the visibility for methods.

    {
        if (is_array($tpl_var)) {
            // $tpl_var is an array, ignore $value
            foreach ($tpl_var as $_key => $_val) {
                if ($_key != '') {
                    if(!@is_array($this->_tpl_vars[$_key])) {
                        settype($this->_tpl_vars[$_key],'array');
                    }
                    if($merge && is_array($_val)) {
                        foreach($_val as $_mkey => $_mval) {
                            $this->_tpl_vars[$_key][$_mkey] = $_mval;
                        }
                    } else {
                        $this->_tpl_vars[$_key][] = $_val;
                    }
                }
            }
        } else {
            if ($tpl_var != '' && isset($value)) {
                if(!@is_array($this->_tpl_vars[$tpl_var])) {
                    settype($this->_tpl_vars[$tpl_var],'array');
                }
                if($merge && is_array($value)) {
                    foreach($value as $_mkey => $_mval) {
                        $this->_tpl_vars[$tpl_var][$_mkey] = $_mval;
                    }
                } else {
                    $this->_tpl_vars[$tpl_var][] = $value;
                }
            }
        }
    }

    /**
     * appends values to template variables by reference
     *
     * @param string $tpl_var the template variable name
     * @param mixed $value the referenced value to append
     */
    function append_by_ref($tpl_var, &$value, $merge=false)

It is generally recommended to explicitly declare the visibility for methods.

    {
        if ($tpl_var != '' && isset($value)) {
            if(!@is_array($this->_tpl_vars[$tpl_var])) {
             settype($this->_tpl_vars[$tpl_var],'array');
            }
            if ($merge && is_array($value)) {
                foreach($value as $_key => $_val) {
                    $this->_tpl_vars[$tpl_var][$_key] = &$value[$_key];
                }
            } else {
                $this->_tpl_vars[$tpl_var][] = &$value;
            }
        }
    }


    /**
     * clear the given assigned template variable.
     *
     * @param string $tpl_var the template variable to clear
     */
    function clear_assign($tpl_var)

It is generally recommended to explicitly declare the visibility for methods.

    {
        if (is_array($tpl_var))

The condition is_array($tpl_var) is always false.

            foreach ($tpl_var as $curr_var)
                unset($this->_tpl_vars[$curr_var]);
        else
            unset($this->_tpl_vars[$tpl_var]);
    }


    /**
     * Registers custom function to be used in templates
     *
     * @param string $function the name of the template function
     * @param string $function_impl the name of the PHP function to register
     */
    function register_function($function, $function_impl, $cacheable=true, $cache_attrs=null)

It is generally recommended to explicitly declare the visibility for methods.

    {
        $this->_plugins['function'][$function] =
            array($function_impl, null, null, false, $cacheable, $cache_attrs);

    }

    /**
     * Unregisters custom function
     *
     * @param string $function name of template function
     */
    function unregister_function($function)

It is generally recommended to explicitly declare the visibility for methods.

    {
        unset($this->_plugins['function'][$function]);
    }

    /**
     * Registers object to be used in templates
     *
     * @param string $object name of template object
     * @param object &$object_impl the referenced PHP object to register
     * @param null|array $allowed list of allowed methods (empty = all)
     * @param boolean $smarty_args smarty argument format, else traditional
     * @param null|array $block_functs list of methods that are block format
     */
    function register_object($object, &$object_impl, $allowed = array(), $smarty_args = true, $block_methods = array())

It is generally recommended to explicitly declare the visibility for methods.

    {
        settype($allowed, 'array');
        settype($smarty_args, 'boolean');
        $this->_reg_objects[$object] =
            array(&$object_impl, $allowed, $smarty_args, $block_methods);
    }

    /**
     * Unregisters object
     *
     * @param string $object name of template object
     */
    function unregister_object($object)

It is generally recommended to explicitly declare the visibility for methods.

    {
        unset($this->_reg_objects[$object]);
    }


    /**
     * Registers block function to be used in templates
     *
     * @param string $block name of template block
     * @param string $block_impl PHP function to register
     */
    function register_block($block, $block_impl, $cacheable=true, $cache_attrs=null)

It is generally recommended to explicitly declare the visibility for methods.

    {
        $this->_plugins['block'][$block] =
            array($block_impl, null, null, false, $cacheable, $cache_attrs);
    }

    /**
     * Unregisters block function
     *
     * @param string $block name of template function
     */
    function unregister_block($block)

It is generally recommended to explicitly declare the visibility for methods.

    {
        unset($this->_plugins['block'][$block]);
    }

    /**
     * Registers compiler function
     *
     * @param string $function name of template function
     * @param string $function_impl name of PHP function to register
     */
    function register_compiler_function($function, $function_impl, $cacheable=true)

It is generally recommended to explicitly declare the visibility for methods.

    {
        $this->_plugins['compiler'][$function] =
            array($function_impl, null, null, false, $cacheable);
    }

    /**
     * Unregisters compiler function
     *
     * @param string $function name of template function
     */
    function unregister_compiler_function($function)

It is generally recommended to explicitly declare the visibility for methods.

    {
        unset($this->_plugins['compiler'][$function]);
    }

    /**
     * Registers modifier to be used in templates
     *
     * @param string $modifier name of template modifier
     * @param string $modifier_impl name of PHP function to register
     */
    function register_modifier($modifier, $modifier_impl)

It is generally recommended to explicitly declare the visibility for methods.

    {
        $this->_plugins['modifier'][$modifier] =
            array($modifier_impl, null, null, false);
    }

    /**
     * Unregisters modifier
     *
     * @param string $modifier name of template modifier
     */
    function unregister_modifier($modifier)

It is generally recommended to explicitly declare the visibility for methods.

    {
        unset($this->_plugins['modifier'][$modifier]);
    }

    /**
     * Registers a resource to fetch a template
     *
     * @param string $type name of resource
     * @param array $functions array of functions to handle resource
     */
    function register_resource($type, $functions)

It is generally recommended to explicitly declare the visibility for methods.

    {
        if (count($functions)==4) {
            $this->_plugins['resource'][$type] =
                array($functions, false);

        } elseif (count($functions)==5) {
            $this->_plugins['resource'][$type] =
                array(array(array(&$functions[0], $functions[1])
                            ,array(&$functions[0], $functions[2])
                            ,array(&$functions[0], $functions[3])
                            ,array(&$functions[0], $functions[4]))
                      ,false);

        } else {
            $this->trigger_error("malformed function-list for '$type' in register_resource");

        }
    }

    /**
     * Unregisters a resource
     *
     * @param string $type name of resource
     */
    function unregister_resource($type)

It is generally recommended to explicitly declare the visibility for methods.

    {
        unset($this->_plugins['resource'][$type]);
    }

    /**
     * Registers a prefilter function to apply
     * to a template before compiling
     *
     * @param callback $function
     */
    function register_prefilter($function)

It is generally recommended to explicitly declare the visibility for methods.

    {
        $this->_plugins['prefilter'][$this->_get_filter_name($function)]
            = array($function, null, null, false);
    }

    /**
     * Unregisters a prefilter function
     *
     * @param callback $function
     */
    function unregister_prefilter($function)

It is generally recommended to explicitly declare the visibility for methods.

    {
        unset($this->_plugins['prefilter'][$this->_get_filter_name($function)]);
    }

    /**
     * Registers a postfilter function to apply
     * to a compiled template after compilation
     *
     * @param callback $function
     */
    function register_postfilter($function)

It is generally recommended to explicitly declare the visibility for methods.

    {
        $this->_plugins['postfilter'][$this->_get_filter_name($function)]
            = array($function, null, null, false);
    }

    /**
     * Unregisters a postfilter function
     *
     * @param callback $function
     */
    function unregister_postfilter($function)

It is generally recommended to explicitly declare the visibility for methods.

    {
        unset($this->_plugins['postfilter'][$this->_get_filter_name($function)]);
    }

    /**
     * Registers an output filter function to apply
     * to a template output
     *
     * @param callback $function
     */
    function register_outputfilter($function)

It is generally recommended to explicitly declare the visibility for methods.

    {
        $this->_plugins['outputfilter'][$this->_get_filter_name($function)]
            = array($function, null, null, false);
    }

    /**
     * Unregisters an outputfilter function
     *
     * @param callback $function
     */
    function unregister_outputfilter($function)

It is generally recommended to explicitly declare the visibility for methods.

    {
        unset($this->_plugins['outputfilter'][$this->_get_filter_name($function)]);
    }

    /**
     * load a filter of specified type and name
     *
     * @param string $type filter type
     * @param string $name filter name
     */
    function load_filter($type, $name)

It is generally recommended to explicitly declare the visibility for methods.

    {
        switch ($type) {
            case 'output':
                $_params = array('plugins' => array(array($type . 'filter', $name, null, null, false)));
                require_once(SMARTY_CORE_DIR . 'core.load_plugins.php');
                smarty_core_load_plugins($_params, $this);
                break;

            case 'pre':
            case 'post':
                if (!isset($this->_plugins[$type . 'filter'][$name]))
                    $this->_plugins[$type . 'filter'][$name] = false;
                break;
        }
    }

    /**
     * clear cached content for the given template and cache id
     *
     * @param string $tpl_file name of template file
     * @param string $cache_id name of cache_id
     * @param string $compile_id name of compile_id
     * @param string $exp_time expiration time
     * @return boolean
     */
    function clear_cache($tpl_file = null, $cache_id = null, $compile_id = null, $exp_time = null)

It is generally recommended to explicitly declare the visibility for methods.

    {

        if (!isset($compile_id))
            $compile_id = $this->compile_id;

        if (!isset($tpl_file))
            $compile_id = null;

        $_auto_id = $this->_get_auto_id($cache_id, $compile_id);

        if (!empty($this->cache_handler_func)) {
            return call_user_func_array($this->cache_handler_func,
                                  array('clear', &$this, &$dummy, $tpl_file, $cache_id, $compile_id, $exp_time));

The variable $dummy seems to be never defined.

        } else {
            $_params = array('auto_base' => $this->cache_dir,
                            'auto_source' => $tpl_file,
                            'auto_id' => $_auto_id,