Smarty

Complexity

Total Complexity

118

Size/Duplication

Total Lines	1316
Duplicated Lines	0 %

Coupling/Cohesion

Components	1
Dependencies	11

Importance

Changes

0

48 Methods

Rating	Name	Duplication	Size	Complexity
A	__construct()	0	18	4
A	muteExpectedErrors()	0	4	1
A	unmuteExpectedErrors()	0	4	1
A	templateExists()	0	6	1
A	enableSecurity()	0	5	1
A	disableSecurity()	0	5	1
B	addTemplateDir()	0	34	6
A	getTemplateDir()	0	15	6
A	setTemplateDir()	0	12	2
A	addConfigDir()	0	4	1
A	getConfigDir()	0	4	1
A	setConfigDir()	0	4	1
A	addPluginsDir()	0	9	2
A	getPluginsDir()	0	18	5
A	setPluginsDir()	0	6	1
A	getCompileDir()	0	8	2
A	setCompileDir()	0	6	1
A	getCacheDir()	0	8	2
A	setCacheDir()	0	6	1
F	createTemplate()	0	51	21
A	loadPlugin()	0	4	1
B	_getTemplateId()	0	24	10
B	_realpath()	0	30	6
A	_clearTemplateCache()	0	5	1
A	setUseSubDirs()	0	4	1
A	setErrorReporting()	0	4	1
A	setEscapeHtml()	0	4	1
A	getAutoLiteral()	0	4	1
A	setAutoLiteral()	0	4	1
A	setForceCompile()	0	4	1
A	setMergeCompiledIncludes()	0	4	1
A	getLeftDelimiter()	0	4	1
A	setLeftDelimiter()	0	4	1
A	getRightDelimiter()	0	4	1
A	setRightDelimiter()	0	4	1
A	setDebugging()	0	4	1
A	setConfigOverwrite()	0	4	1
A	setConfigBooleanize()	0	4	1
A	setConfigReadHidden()	0	4	1
A	setCompileLocking()	0	4	1
A	setDefaultResourceType()	0	4	1
A	setCachingType()	0	4	1
A	testInstall()	0	4	1
A	_getSmartyObj()	0	4	1
A	__get()	0	14	4
A	__set()	0	13	5
A	_normalizeDir()	0	9	3
B	_normalizeTemplateConfig()	0	22	7

<?php

For compatibility and reusability of your code, PSR1 recommends that a file should introduce either new symbols (like classes, functions, etc.) or have side-effects (like outputting something, or including other files), but not both at the same time. The first symbol is defined on line 40 and the first side effect is on line 81.

/**
 * 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 2018 New Digital Group, Inc.
 * @copyright 2018 Uwe Tews
 * @author    Monte Ohrt <monte at ohrt dot com>
 * @author    Uwe Tews   <uwe dot tews at gmail dot com>
 * @author    Rodney Rehm
 * @package   Smarty
 * @version   3.1.33
 */
/**
 * set SMARTY_DIR to absolute path to Smarty library files.
 * Sets SMARTY_DIR only if user application has not already defined it.
 */
if (!defined('SMARTY_DIR')) {
    /**
     *
     */
    define('SMARTY_DIR', dirname(__FILE__) . DIRECTORY_SEPARATOR);
}
/**
 * set SMARTY_SYSPLUGINS_DIR to absolute path to Smarty internal plugins.
 * Sets SMARTY_SYSPLUGINS_DIR only if user application has not already defined it.
 */
if (!defined('SMARTY_SYSPLUGINS_DIR')) {
    /**
     *
     */
    define('SMARTY_SYSPLUGINS_DIR', SMARTY_DIR . 'sysplugins' . DIRECTORY_SEPARATOR);
}
if (!defined('SMARTY_PLUGINS_DIR')) {
    /**
     *
     */
    define('SMARTY_PLUGINS_DIR', SMARTY_DIR . 'plugins' . DIRECTORY_SEPARATOR);
}
if (!defined('SMARTY_MBSTRING')) {
    /**
     *
     */
    define('SMARTY_MBSTRING', function_exists('mb_get_info'));
}
if (!defined('SMARTY_RESOURCE_CHAR_SET')) {
    // UTF-8 can only be done properly when mbstring is available!
    /**
     * @deprecated in favor of Smarty::$_CHARSET
     */
    define('SMARTY_RESOURCE_CHAR_SET', SMARTY_MBSTRING ? 'UTF-8' : 'ISO-8859-1');
}
if (!defined('SMARTY_RESOURCE_DATE_FORMAT')) {
    /**
     * @deprecated in favor of Smarty::$_DATE_FORMAT
     */
    define('SMARTY_RESOURCE_DATE_FORMAT', '%b %e, %Y');
}
/**
 * Load Smarty_Autoloader
 */
if (!class_exists('Smarty_Autoloader')) {
    include dirname(__FILE__) . '/bootstrap.php';
}
/**
 * Load always needed external class files
 */
require_once SMARTY_SYSPLUGINS_DIR . 'smarty_internal_data.php';
require_once SMARTY_SYSPLUGINS_DIR . 'smarty_internal_extension_handler.php';
require_once SMARTY_SYSPLUGINS_DIR . 'smarty_internal_templatebase.php';
require_once SMARTY_SYSPLUGINS_DIR . 'smarty_internal_template.php';
require_once SMARTY_SYSPLUGINS_DIR . 'smarty_resource.php';
require_once SMARTY_SYSPLUGINS_DIR . 'smarty_variable.php';
require_once SMARTY_SYSPLUGINS_DIR . 'smarty_template_source.php';
require_once SMARTY_SYSPLUGINS_DIR . 'smarty_template_resource_base.php';
require_once SMARTY_SYSPLUGINS_DIR . 'smarty_internal_resource_file.php';

/**
 * This is the main Smarty class
 *
 * @package Smarty
 *
 * The following methods will be dynamically loaded by the extension handler when they are called.
 * They are located in a corresponding Smarty_Internal_Method_xxxx class
 *
 * @method int clearAllCache(int $exp_time = null, string $type = null)
 * @method int clearCache(string $template_name, string $cache_id = null, string $compile_id = null, int $exp_time = null, string $type = null)
 * @method int compileAllTemplates(string $extension = '.tpl', bool $force_compile = false, int $time_limit = 0, $max_errors = null)
 * @method int compileAllConfig(string $extension = '.conf', bool $force_compile = false, int $time_limit = 0, $max_errors = null)
 * @method int clearCompiledTemplate($resource_name = null, $compile_id = null, $exp_time = null)
 */
class Smarty extends Smarty_Internal_TemplateBase
{
    /**
     * smarty version
     */
    const SMARTY_VERSION = '3.1.33';
    /**
     * define variable scopes
     */
    const SCOPE_LOCAL    = 1;
    const SCOPE_PARENT   = 2;
    const SCOPE_TPL_ROOT = 4;
    const SCOPE_ROOT     = 8;
    const SCOPE_SMARTY   = 16;
    const SCOPE_GLOBAL   = 32;
    /**
     * define caching modes
     */
    const CACHING_OFF              = 0;
    const CACHING_LIFETIME_CURRENT = 1;
    const CACHING_LIFETIME_SAVED   = 2;
    /**
     * define constant for clearing cache files be saved expiration dates
     */
    const CLEAR_EXPIRED = -1;
    /**
     * define compile check modes
     */
    const COMPILECHECK_OFF       = 0;
    const COMPILECHECK_ON        = 1;
    const COMPILECHECK_CACHEMISS = 2;
    /**
     * define debug modes
     */
    const DEBUG_OFF        = 0;
    const DEBUG_ON         = 1;
    const DEBUG_INDIVIDUAL = 2;
    /**
     * modes for handling of "<?php ... ?>" tags in templates.
     */
    const PHP_PASSTHRU = 0; //-> print tags as plain text
    const PHP_QUOTE    = 1; //-> escape tags as entities
    const PHP_REMOVE   = 2; //-> escape tags as entities
    const PHP_ALLOW    = 3; //-> escape tags as entities
    /**
     * filter types
     */
    const FILTER_POST     = 'post';
    const FILTER_PRE      = 'pre';
    const FILTER_OUTPUT   = 'output';
    const FILTER_VARIABLE = 'variable';
    /**
     * plugin types
     */
    const PLUGIN_FUNCTION         = 'function';
    const PLUGIN_BLOCK            = 'block';
    const PLUGIN_COMPILER         = 'compiler';
    const PLUGIN_MODIFIER         = 'modifier';
    const PLUGIN_MODIFIERCOMPILER = 'modifiercompiler';

    /**
     * assigned global tpl vars
     */
    public static $global_tpl_vars = array();

    /**
     * Flag denoting if Multibyte String functions are available
     */
    public static $_MBSTRING = SMARTY_MBSTRING;

    /**
     * The character set to adhere to (e.g. "UTF-8")
     */
    public static $_CHARSET = SMARTY_RESOURCE_CHAR_SET;

The constant SMARTY_RESOURCE_CHAR_SET has been deprecated with message: in favor of Smarty::$_CHARSET

    /**
     * The date format to be used internally
     * (accepts date() and strftime())
     */
    public static $_DATE_FORMAT = SMARTY_RESOURCE_DATE_FORMAT;

The constant SMARTY_RESOURCE_DATE_FORMAT has been deprecated with message: in favor of Smarty::$_DATE_FORMAT

    /**
     * Flag denoting if PCRE should run in UTF-8 mode
     */
    public static $_UTF8_MODIFIER = 'u';

    /**
     * Flag denoting if operating system is windows
     */
    public static $_IS_WINDOWS = false;

    /**
     * auto literal on delimiters with whitespace
     *
     * @var boolean
     */
    public $auto_literal = true;

    /**
     * display error on not assigned variables
     *
     * @var boolean
     */
    public $error_unassigned = false;

    /**
     * look up relative file path in include_path
     *
     * @var boolean
     */
    public $use_include_path = false;

    /**
     * flag if template_dir is normalized
     *
     * @var bool
     */
    public $_templateDirNormalized = false;

    /**
     * joined template directory string used in cache keys
     *
     * @var string
     */
    public $_joined_template_dir = null;

    /**
     * flag if config_dir is normalized
     *
     * @var bool
     */
    public $_configDirNormalized = false;

    /**
     * joined config directory string used in cache keys
     *
     * @var string
     */
    public $_joined_config_dir = null;

    /**
     * default template handler
     *
     * @var callable
     */
    public $default_template_handler_func = null;

    /**
     * default config handler
     *
     * @var callable
     */
    public $default_config_handler_func = null;

    /**
     * default plugin handler
     *
     * @var callable
     */
    public $default_plugin_handler_func = null;

    /**
     * flag if template_dir is normalized
     *
     * @var bool
     */
    public $_compileDirNormalized = false;

    /**
     * flag if plugins_dir is normalized
     *
     * @var bool
     */
    public $_pluginsDirNormalized = false;

    /**
     * flag if template_dir is normalized
     *
     * @var bool
     */
    public $_cacheDirNormalized = false;

    /**
     * force template compiling?
     *
     * @var boolean
     */
    public $force_compile = false;

    /**
     * use sub dirs for compiled/cached files?
     *
     * @var boolean
     */
    public $use_sub_dirs = false;

    /**
     * allow ambiguous resources (that are made unique by the resource handler)
     *
     * @var boolean
     */
    public $allow_ambiguous_resources = false;

    /**
     * merge compiled includes
     *
     * @var boolean
     */
    public $merge_compiled_includes = false;

    /*
    * flag for behaviour when extends: resource  and {extends} tag are used simultaneous
    *   if false disable execution of {extends} in templates called by extends resource.
    *   (behaviour as versions < 3.1.28)
    *
    * @var boolean
    */
    public $extends_recursion = true;

    /**
     * force cache file creation
     *
     * @var boolean
     */
    public $force_cache = false;

    /**
     * template left-delimiter
     *
     * @var string
     */
    public $left_delimiter = "{";

    /**
     * template right-delimiter
     *
     * @var string
     */
    public $right_delimiter = "}";

    /**
     * array of strings which shall be treated as literal by compiler
     *
     * @var array string
     */
    public $literals = array();

    /**
     * class name
     * This should be instance of Smarty_Security.
     *
     * @var string
     * @see Smarty_Security
     */
    public $security_class = 'Smarty_Security';

    /**
     * implementation of security class
     *
     * @var Smarty_Security
     */
    public $security_policy = null;

    /**
     * controls handling of PHP-blocks
     *
     * @var integer
     */
    public $php_handling = self::PHP_PASSTHRU;

    /**
     * controls if the php template file resource is allowed
     *
     * @var bool
     */
    public $allow_php_templates = false;

    /**
     * debug mode
     * Setting this to true enables the debug-console.
     *
     * @var boolean
     */
    public $debugging = false;

    /**
     * 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>
     *
     * @var string
     */
    public $debugging_ctrl = 'NONE';

    /**
     * Name of debugging URL-param.
     * Only used when $debugging_ctrl is set to 'URL'.
     * The name of the URL-parameter that activates debugging.
     *
     * @var string
     */
    public $smarty_debug_id = 'SMARTY_DEBUG';

    /**
     * Path of debug template.
     *
     * @var string
     */
    public $debug_tpl = null;

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

    /**
     * Controls whether variables with the same name overwrite each other.
     *
     * @var boolean
     */
    public $config_overwrite = true;

    /**
     * Controls whether config values of on/true/yes and off/false/no get converted to boolean.
     *
     * @var boolean
     */
    public $config_booleanize = true;

    /**
     * Controls whether hidden config sections/vars are read from the file.
     *
     * @var boolean
     */
    public $config_read_hidden = false;

    /**
     * locking concurrent compiles
     *
     * @var boolean
     */
    public $compile_locking = true;

    /**
     * Controls whether cache resources should use locking mechanism
     *
     * @var boolean
     */
    public $cache_locking = false;

    /**
     * seconds to wait for acquiring a lock before ignoring the write lock
     *
     * @var float
     */
    public $locking_timeout = 10;

    /**
     * resource type used if none given
     * Must be an valid key of $registered_resources.
     *
     * @var string
     */
    public $default_resource_type = 'file';

    /**
     * caching type
     * Must be an element of $cache_resource_types.
     *
     * @var string
     */
    public $caching_type = 'file';

    /**
     * config type
     *
     * @var string
     */
    public $default_config_type = 'file';

    /**
     * check If-Modified-Since headers
     *
     * @var boolean
     */
    public $cache_modified_check = false;

    /**
     * registered plugins
     *
     * @var array
     */
    public $registered_plugins = array();

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

    /**
     * registered classes
     *
     * @var array
     */
    public $registered_classes = array();

    /**
     * registered filters
     *
     * @var array
     */
    public $registered_filters = array();

    /**
     * registered resources
     *
     * @var array
     */
    public $registered_resources = array();

    /**
     * registered cache resources
     *
     * @var array
     */
    public $registered_cache_resources = array();

    /**
     * autoload filter
     *
     * @var array
     */
    public $autoload_filters = array();

    /**
     * default modifier
     *
     * @var array
     */
    public $default_modifiers = array();

    /**
     * autoescape variable output
     *
     * @var boolean
     */
    public $escape_html = false;

    /**
     * start time for execution time calculation
     *
     * @var int
     */
    public $start_time = 0;

    /**
     * required by the compiler for BC
     *
     * @var string
     */
    public $_current_file = null;

    /**
     * internal flag to enable parser debugging
     *
     * @var bool
     */
    public $_parserdebug = false;

    /**
     * This object type (Smarty = 1, template = 2, data = 4)
     *
     * @var int
     */
    public $_objType = 1;

    /**
     * Debug object
     *
     * @var Smarty_Internal_Debug
     */
    public $_debug = null;

    /**
     * template directory
     *
     * @var array
     */
    protected $template_dir = array('./templates/');

    /**
     * flags for normalized template directory entries
     *
     * @var array
     */
    protected $_processedTemplateDir = array();

    /**
     * config directory
     *
     * @var array
     */
    protected $config_dir = array('./configs/');

    /**
     * flags for normalized template directory entries
     *
     * @var array
     */
    protected $_processedConfigDir = array();

    /**
     * compile directory
     *
     * @var string
     */
    protected $compile_dir = './templates_c/';

    /**
     * plugins directory
     *
     * @var array
     */
    protected $plugins_dir = array();

    /**
     * cache directory
     *
     * @var string
     */
    protected $cache_dir = './cache/';

    /**
     * removed properties
     *
     * @var string[]
     */
    protected $obsoleteProperties = array(
        'resource_caching', 'template_resource_caching', 'direct_access_security',
        '_dir_perms', '_file_perms', 'plugin_search_order',
        'inheritance_merge_compiled_includes', 'resource_cache_mode',
    );

    /**
     * List of private properties which will call getter/setter on a direct access
     *
     * @var string[]
     */
    protected $accessMap = array(
        'template_dir' => 'TemplateDir', 'config_dir' => 'ConfigDir',
        'plugins_dir'  => 'PluginsDir', 'compile_dir' => 'CompileDir',
        'cache_dir'    => 'CacheDir',
    );

    /**
     * Initialize new Smarty object
     */
    public function __construct()

__construct uses the super-global variable $_SERVER which is generally not recommended.

    {
        $this->_clearTemplateCache();
        parent::__construct();
        if (is_callable('mb_internal_encoding')) {
            mb_internal_encoding(Smarty::$_CHARSET);
        }
        $this->start_time = microtime(true);

The property $start_time was declared of type integer, but microtime(true) is of type double. Maybe add a type cast?

        if (isset($_SERVER[ 'SCRIPT_NAME' ])) {
            Smarty::$global_tpl_vars[ 'SCRIPT_NAME' ] = new Smarty_Variable($_SERVER[ 'SCRIPT_NAME' ]);
        }
        // Check if we're running on windows
        Smarty::$_IS_WINDOWS = strtoupper(substr(PHP_OS, 0, 3)) === 'WIN';
        // let PCRE (preg_*) treat strings as ISO-8859-1 if we're not dealing with UTF-8
        if (Smarty::$_CHARSET !== 'UTF-8') {
            Smarty::$_UTF8_MODIFIER = '';
        }
    }

    /**
     * Enable error handler to mute expected messages
     *
     * @return     boolean
     * @deprecated
     */
    public static function muteExpectedErrors()
    {
        return Smarty_Internal_ErrorHandler::muteExpectedErrors();
    }

    /**
     * Disable error handler muting expected messages
     *
     * @deprecated
     */
    public static function unmuteExpectedErrors()
    {
        restore_error_handler();
    }

    /**
     * Check if a template resource exists
     *
     * @param string $resource_name template name
     *
     * @return bool status
     * @throws \SmartyException
     */
    public function templateExists($resource_name)
    {
        // create source object
        $source = Smarty_Template_Source::load(null, $this, $resource_name);
        return $source->exists;
    }

    /**
     * Loads security class and enables security
     *
     * @param string|Smarty_Security $security_class if a string is used, it must be class-name
     *
     * @return Smarty                 current Smarty instance for chaining
     * @throws \SmartyException
     */
    public function enableSecurity($security_class = null)
    {
        Smarty_Security::enableSecurity($this, $security_class);

It seems like $security_class defined by parameter $security_class on line 736 can also be of type null; however, Smarty_Security::enableSecurity() does only seem to accept string|object<Smarty_Security>, maybe add an additional type check?

        return $this;
    }

    /**
     * Disable security
     *
     * @return Smarty current Smarty instance for chaining
     */
    public function disableSecurity()
    {
        $this->security_policy = null;
        return $this;
    }

    /**
     * Add template directory(s)
     *
     * @param string|array $template_dir directory(s) of template sources
     * @param string       $key          of the array element to assign the template dir to
     * @param bool         $isConfig     true for config_dir
     *
     * @return Smarty          current Smarty instance for chaining
     */
    public function addTemplateDir($template_dir, $key = null, $isConfig = false)
    {
        if ($isConfig) {
            $processed = &$this->_processedConfigDir;
            $dir = &$this->config_dir;
            $this->_configDirNormalized = false;
        } else {
            $processed = &$this->_processedTemplateDir;
            $dir = &$this->template_dir;
            $this->_templateDirNormalized = false;
        }
        if (is_array($template_dir)) {
            foreach ($template_dir as $k => $v) {
                if (is_int($k)) {
                    // indexes are not merged but appended
                    $dir[] = $v;
                } else {
                    // string indexes are overridden
                    $dir[ $k ] = $v;
                    unset($processed[ $key ]);
                }
            }
        } else {
            if ($key !== null) {
                // override directory at specified index
                $dir[ $key ] = $template_dir;
                unset($processed[ $key ]);
            } else {
                // append new directory
                $dir[] = $template_dir;
            }
        }
        return $this;
    }

    /**
     * Get template directories
     *
     * @param mixed $index    index of directory to get, null to get all
     * @param bool  $isConfig true for config_dir
     *
     * @return array list of template directories, or directory of $index
     */
    public function getTemplateDir($index = null, $isConfig = false)
    {
        if ($isConfig) {
            $dir = &$this->config_dir;
        } else {
            $dir = &$this->template_dir;
        }
        if ($isConfig ? !$this->_configDirNormalized : !$this->_templateDirNormalized) {
            $this->_normalizeTemplateConfig($isConfig);
        }
        if ($index !== null) {
            return isset($dir[ $index ]) ? $dir[ $index ] : null;
        }
        return $dir;
    }

    /**
     * Set template directory
     *
     * @param string|array $template_dir directory(s) of template sources
     * @param bool         $isConfig     true for config_dir
     *
     * @return \Smarty current Smarty instance for chaining
     */
    public function setTemplateDir($template_dir, $isConfig = false)
    {
        if ($isConfig) {
            $this->config_dir = array();
            $this->_processedConfigDir = array();
        } else {
            $this->template_dir = array();
            $this->_processedTemplateDir = array();
        }
        $this->addTemplateDir($template_dir, null, $isConfig);
        return $this;
    }

    /**
     * Add config directory(s)
     *
     * @param string|array $config_dir directory(s) of config sources
     * @param mixed        $key        key of the array element to assign the config dir to
     *
     * @return Smarty current Smarty instance for chaining
     */
    public function addConfigDir($config_dir, $key = null)
    {
        return $this->addTemplateDir($config_dir, $key, true);
    }

    /**
     * Get config directory
     *
     * @param mixed $index index of directory to get, null to get all
     *
     * @return array configuration directory
     */
    public function getConfigDir($index = null)
    {
        return $this->getTemplateDir($index, true);
    }

    /**
     * Set config directory
     *
     * @param $config_dir
     *
     * @return Smarty       current Smarty instance for chaining
     */
    public function setConfigDir($config_dir)
    {
        return $this->setTemplateDir($config_dir, true);
    }

    /**
     * Adds directory of plugin files
     *
     * @param null|array|string $plugins_dir
     *
     * @return Smarty current Smarty instance for chaining
     */
    public function addPluginsDir($plugins_dir)
    {
        if (empty($this->plugins_dir)) {
            $this->plugins_dir[] = SMARTY_PLUGINS_DIR;
        }
        $this->plugins_dir = array_merge($this->plugins_dir, (array)$plugins_dir);
        $this->_pluginsDirNormalized = false;
        return $this;
    }

    /**
     * Get plugin directories
     *
     * @return array list of plugin directories
     */
    public function getPluginsDir()
    {
        if (empty($this->plugins_dir)) {
            $this->plugins_dir[] = SMARTY_PLUGINS_DIR;
            $this->_pluginsDirNormalized = false;
        }
        if (!$this->_pluginsDirNormalized) {
            if (!is_array($this->plugins_dir)) {
                $this->plugins_dir = (array)$this->plugins_dir;
            }
            foreach ($this->plugins_dir as $k => $v) {
                $this->plugins_dir[ $k ] = $this->_realpath(rtrim($v, '/\\') . DIRECTORY_SEPARATOR, true);
            }
            $this->_cache[ 'plugin_files' ] = array();
            $this->_pluginsDirNormalized = true;
        }
        return $this->plugins_dir;
    }

    /**
     * Set plugins directory
     *
     * @param string|array $plugins_dir directory(s) of plugins
     *
     * @return Smarty       current Smarty instance for chaining
     */
    public function setPluginsDir($plugins_dir)
    {
        $this->plugins_dir = (array)$plugins_dir;
        $this->_pluginsDirNormalized = false;
        return $this;
    }

    /**
     * Get compiled directory
     *
     * @return string path to compiled templates
     */
    public function getCompileDir()
    {
        if (!$this->_compileDirNormalized) {
            $this->_normalizeDir('compile_dir', $this->compile_dir);
            $this->_compileDirNormalized = true;
        }
        return $this->compile_dir;
    }

    /**
     *
     * @param  string $compile_dir directory to store compiled templates in
     *
     * @return Smarty current Smarty instance for chaining
     */
    public function setCompileDir($compile_dir)
    {
        $this->_normalizeDir('compile_dir', $compile_dir);
        $this->_compileDirNormalized = true;
        return $this;
    }

    /**
     * Get cache directory
     *
     * @return string path of cache directory
     */
    public function getCacheDir()
    {
        if (!$this->_cacheDirNormalized) {
            $this->_normalizeDir('cache_dir', $this->cache_dir);
            $this->_cacheDirNormalized = true;
        }
        return $this->cache_dir;
    }

    /**
     * Set cache directory
     *
     * @param string $cache_dir directory to store cached templates in
     *
     * @return Smarty current Smarty instance for chaining
     */
    public function setCacheDir($cache_dir)
    {
        $this->_normalizeDir('cache_dir', $cache_dir);
        $this->_cacheDirNormalized = true;
        return $this;
    }

    /**
     * creates a template object
     *
     * @param string  $template   the resource handle of the template file
     * @param mixed   $cache_id   cache id to be used with this template
     * @param mixed   $compile_id compile id to be used with this template
     * @param object  $parent     next higher level of Smarty variables
     * @param boolean $do_clone   flag is Smarty object shall be cloned
     *
     * @return \Smarty_Internal_Template template object
     * @throws \SmartyException
     */
    public function createTemplate($template, $cache_id = null, $compile_id = null, $parent = null, $do_clone = true)
    {
        if ($cache_id !== null && (is_object($cache_id) || is_array($cache_id))) {
            $parent = $cache_id;
            $cache_id = null;
        }
        if ($parent !== null && is_array($parent)) {
            $data = $parent;
            $parent = null;
        } else {
            $data = null;
        }
        if (!$this->_templateDirNormalized) {
            $this->_normalizeTemplateConfig(false);
        }
        $_templateId = $this->_getTemplateId($template, $cache_id, $compile_id);
        $tpl = null;

$tpl is not used, you could remove the assignment.

        if ($this->caching && isset(Smarty_Internal_Template::$isCacheTplObj[ $_templateId ])) {
            $tpl = $do_clone ? clone Smarty_Internal_Template::$isCacheTplObj[ $_templateId ] :
                Smarty_Internal_Template::$isCacheTplObj[ $_templateId ];
            $tpl->inheritance = null;
            $tpl->tpl_vars = $tpl->config_vars = array();
        } elseif (!$do_clone && isset(Smarty_Internal_Template::$tplObjCache[ $_templateId ])) {
            $tpl = clone Smarty_Internal_Template::$tplObjCache[ $_templateId ];
            $tpl->inheritance = null;
            $tpl->tpl_vars = $tpl->config_vars = array();
        } else {
            /* @var Smarty_Internal_Template $tpl */
            $tpl = new $this->template_class($template, $this, null, $cache_id, $compile_id, null, null);
            $tpl->templateId = $_templateId;
        }
        if ($do_clone) {
            $tpl->smarty = clone $tpl->smarty;
        }
        $tpl->parent = $parent ? $parent : $this;
        // fill data if present
        if (!empty($data) && is_array($data)) {
            // set up variable values
            foreach ($data as $_key => $_val) {
                $tpl->tpl_vars[ $_key ] = new Smarty_Variable($_val);
            }
        }
        if ($this->debugging || $this->debugging_ctrl === 'URL') {
            $tpl->smarty->_debug = new Smarty_Internal_Debug();
            // check URL debugging control
            if (!$this->debugging && $this->debugging_ctrl === 'URL') {
                $tpl->smarty->_debug->debugUrl($tpl->smarty);
            }
        }
        return $tpl;
    }

    /**
     * Takes unknown classes and loads plugin files for them
     * class name format: Smarty_PluginType_PluginName
     * plugin filename format: plugintype.pluginname.php
     *
     * @param string $plugin_name class plugin name to load
     * @param bool   $check       check if already loaded
     *
     * @return string |boolean filepath of loaded file or false
     * @throws \SmartyException
     */
    public function loadPlugin($plugin_name, $check = true)
    {
        return $this->ext->loadPlugin->loadPlugin($this, $plugin_name, $check);
    }

    /**
     * Get unique template id
     *
     * @param string                    $template_name
     * @param null|mixed                $cache_id
     * @param null|mixed                $compile_id
     * @param null                      $caching
     * @param \Smarty_Internal_Template $template
     *
     * @return string
     * @throws \SmartyException
     */
    public function _getTemplateId(
        $template_name,
        $cache_id = null,
        $compile_id = null,
        $caching = null,
        Smarty_Internal_Template $template = null
    ) {
        $template_name = (strpos($template_name, ':') === false) ? "{$this->default_resource_type}:{$template_name}" :
            $template_name;
        $cache_id = $cache_id === null ? $this->cache_id : $cache_id;
        $compile_id = $compile_id === null ? $this->compile_id : $compile_id;
        $caching = (int)($caching === null ? $this->caching : $caching);
        if ((isset($template) && strpos($template_name, ':.') !== false) || $this->allow_ambiguous_resources) {
            $_templateId =
                Smarty_Resource::getUniqueTemplateName((isset($template) ? $template : $this), $template_name) .
                "#{$cache_id}#{$compile_id}#{$caching}";
        } else {
            $_templateId = $this->_joined_template_dir . "#{$template_name}#{$cache_id}#{$compile_id}#{$caching}";
        }
        if (isset($_templateId[ 150 ])) {
            $_templateId = sha1($_templateId);
        }
        return $_templateId;
    }

    /**
     * Normalize path
     *  - remove /./ and /../
     *  - make it absolute if required
     *
     * @param string $path     file path
     * @param bool   $realpath if true - convert to absolute
     *                         false - convert to relative
     *                         null - keep as it is but
     *                         remove /./ /../
     *
     * @return string
     */
    public function _realpath($path, $realpath = null)
    {
        $nds = array('/' => '\\', '\\' => '/');
        preg_match(
            '%^(?<root>(?:[[:alpha:]]:[\\\\/]|/|[\\\\]{2}[[:alpha:]]+|[[:print:]]{2,}:[/]{2}|[\\\\])?)(?<path>(.*))$%u',
            $path,
            $parts
        );
        $path = $parts[ 'path' ];
        if ($parts[ 'root' ] === '\\') {
            $parts[ 'root' ] = substr(getcwd(), 0, 2) . $parts[ 'root' ];
        } else {
            if ($realpath !== null && !$parts[ 'root' ]) {
                $path = getcwd() . DIRECTORY_SEPARATOR . $path;
            }
        }
        // normalize DIRECTORY_SEPARATOR
        $path = str_replace($nds[ DIRECTORY_SEPARATOR ], DIRECTORY_SEPARATOR, $path);
        $parts[ 'root' ] = str_replace($nds[ DIRECTORY_SEPARATOR ], DIRECTORY_SEPARATOR, $parts[ 'root' ]);
        do {
            $path = preg_replace(
                array('#[\\\\/]{2}#', '#[\\\\/][.][\\\\/]#', '#[\\\\/]([^\\\\/.]+)[\\\\/][.][.][\\\\/]#'),
                DIRECTORY_SEPARATOR,
                $path,
                -1,
                $count
            );
        } while ($count > 0);
        return $realpath !== false ? $parts[ 'root' ] . $path : str_ireplace(getcwd(), '.', $parts[ 'root' ] . $path);
    }

    /**
     * Empty template objects cache
     */
    public function _clearTemplateCache()
    {
        Smarty_Internal_Template::$isCacheTplObj = array();
        Smarty_Internal_Template::$tplObjCache = array();
    }

    /**
     * @param boolean $use_sub_dirs
     */
    public function setUseSubDirs($use_sub_dirs)
    {
        $this->use_sub_dirs = $use_sub_dirs;
    }

    /**
     * @param int $error_reporting
     */
    public function setErrorReporting($error_reporting)
    {
        $this->error_reporting = $error_reporting;
    }

    /**
     * @param boolean $escape_html
     */
    public function setEscapeHtml($escape_html)
    {
        $this->escape_html = $escape_html;
    }

    /**
     * Return auto_literal flag
     *
     * @return boolean
     */
    public function getAutoLiteral()
    {
        return $this->auto_literal;
    }

    /**
     * Set auto_literal flag
     *
     * @param boolean $auto_literal
     */
    public function setAutoLiteral($auto_literal = true)
    {
        $this->auto_literal = $auto_literal;
    }

    /**
     * @param boolean $force_compile
     */
    public function setForceCompile($force_compile)
    {
        $this->force_compile = $force_compile;
    }

    /**
     * @param boolean $merge_compiled_includes
     */
    public function setMergeCompiledIncludes($merge_compiled_includes)
    {
        $this->merge_compiled_includes = $merge_compiled_includes;
    }

    /**
     * Get left delimiter
     *
     * @return string
     */
    public function getLeftDelimiter()
    {
        return $this->left_delimiter;
    }

    /**
     * Set left delimiter
     *
     * @param string $left_delimiter
     */
    public function setLeftDelimiter($left_delimiter)
    {
        $this->left_delimiter = $left_delimiter;
    }

    /**
     * Get right delimiter
     *
     * @return string $right_delimiter
     */
    public function getRightDelimiter()
    {
        return $this->right_delimiter;
    }

    /**
     * Set right delimiter
     *
     * @param string
     */
    public function setRightDelimiter($right_delimiter)
    {
        $this->right_delimiter = $right_delimiter;
    }

    /**
     * @param boolean $debugging
     */
    public function setDebugging($debugging)
    {
        $this->debugging = $debugging;
    }

    /**
     * @param boolean $config_overwrite
     */
    public function setConfigOverwrite($config_overwrite)
    {
        $this->config_overwrite = $config_overwrite;
    }

    /**
     * @param boolean $config_booleanize
     */
    public function setConfigBooleanize($config_booleanize)
    {
        $this->config_booleanize = $config_booleanize;
    }

    /**
     * @param boolean $config_read_hidden
     */
    public function setConfigReadHidden($config_read_hidden)
    {
        $this->config_read_hidden = $config_read_hidden;
    }

    /**
     * @param boolean $compile_locking
     */
    public function setCompileLocking($compile_locking)
    {
        $this->compile_locking = $compile_locking;
    }

    /**
     * @param string $default_resource_type
     */
    public function setDefaultResourceType($default_resource_type)
    {
        $this->default_resource_type = $default_resource_type;
    }

    /**
     * @param string $caching_type
     */
    public function setCachingType($caching_type)
    {
        $this->caching_type = $caching_type;
    }

    /**
     * Test install
     *
     * @param null $errors
     */
    public function testInstall(&$errors = null)
    {
        Smarty_Internal_TestInstall::testInstall($this, $errors);
    }

    /**
     * Get Smarty object
     *
     * @return Smarty
     */
    public function _getSmartyObj()
    {
        return $this;
    }

    /**
     * <<magic>> Generic getter.
     * Calls the appropriate getter function.
     * Issues an E_USER_NOTICE if no valid getter is found.
     *
     * @param string $name property name
     *
     * @return mixed
     */
    public function __get($name)
    {
        if (isset($this->accessMap[ $name ])) {
            $method = 'get' . $this->accessMap[ $name ];
            return $this->{$method}();
        } elseif (isset($this->_cache[ $name ])) {
            return $this->_cache[ $name ];
        } elseif (in_array($name, $this->obsoleteProperties)) {
            return null;
        } else {
            trigger_error('Undefined property: ' . get_class($this) . '::$' . $name, E_USER_NOTICE);
        }
        return null;
    }

    /**
     * <<magic>> Generic setter.
     * Calls the appropriate setter function.
     * Issues an E_USER_NOTICE if no valid setter is found.
     *
     * @param string $name  property name
     * @param mixed  $value parameter passed to setter
     *
     */
    public function __set($name, $value)
    {
        if (isset($this->accessMap[ $name ])) {
            $method = 'set' . $this->accessMap[ $name ];
            $this->{$method}($value);
        } elseif (in_array($name, $this->obsoleteProperties)) {
            return;
        } elseif (is_object($value) && method_exists($value, $name)) {
            $this->$name = $value;
        } else {
            trigger_error('Undefined property: ' . get_class($this) . '::$' . $name, E_USER_NOTICE);
        }
    }

    /**
     * Normalize and set directory string
     *
     * @param string $dirName cache_dir or compile_dir
     * @param string $dir     filepath of folder
     */
    private function _normalizeDir($dirName, $dir)
    {
        $this->{$dirName} = $this->_realpath(rtrim($dir, "/\\") . DIRECTORY_SEPARATOR, true);
        if (class_exists('Smarty_Internal_ErrorHandler', false)) {
            if (!isset(Smarty_Internal_ErrorHandler::$mutedDirectories[ $this->{$dirName} ])) {
                Smarty_Internal_ErrorHandler::$mutedDirectories[ $this->{$dirName} ] = null;
            }
        }
    }

    /**
     * Normalize template_dir or config_dir
     *
     * @param bool $isConfig true for config_dir
     */
    private function _normalizeTemplateConfig($isConfig)
    {
        if ($isConfig) {
            $processed = &$this->_processedConfigDir;
            $dir = &$this->config_dir;
        } else {
            $processed = &$this->_processedTemplateDir;
            $dir = &$this->template_dir;
        }
        if (!is_array($dir)) {
            $dir = (array)$dir;
        }
        foreach ($dir as $k => $v) {
            if (!isset($processed[ $k ])) {
                $dir[ $k ] = $v = $this->_realpath(rtrim($v, "/\\") . DIRECTORY_SEPARATOR, true);
                $processed[ $k ] = true;
            }
        }
        $isConfig ? $this->_configDirNormalized = true : $this->_templateDirNormalized = true;
        $isConfig ? $this->_joined_config_dir = join('#', $this->config_dir) :
            $this->_joined_template_dir = join('#', $this->template_dir);
    }
}