e variables
	* E.g. <!-- INCLUDE '{TEST}.html' to <!-- INCLUDE ' ~ {TEST} ~ '.html
	*
	* @param array $tokens array of tokens to search for (imploded to a regular expression)
	* @param string $code
	* @return string
	*/
	protected function fix_inline_variable_tokens($tokens, $code)
	{
		$callback = function($matches)
		{
			// Replace template variables with start/end to parse variables (' ~ TEST ~ '.html)
			$matches[2] = preg_replace('#{([a-zA-Z0-9_\.$]+)}#', "'~ \$1 ~'", $matches[2]);

			return "<!-- {$matches[1]} {$matches[2]} -->";
		};

		return preg_replace_callback('#<!-- (' . implode('|', $tokens) . ') (.+?) -->#', $callback, $code);
	}

	/**
	* Add surrounding quotes
	*
	* Last step to fix tokens that may have inline variables
	* E.g. <!-- INCLUDE '{TEST}.html' to <!-- INCLUDE '' ~ {TEST} ~ '.html'
	*
	* @param array $tokens array of tokens to search for (imploded to a regular expression)
	* @param string $code
	* @return string
	*/
	protected function add_surrounding_quotes($tokens, $code)
	{
		return preg_replace('#<!-- (' . implode('|', $tokens) . ') (.+?) -->#', '<!-- $1 \'$2\' -->', $code);
	}

	/**
	* Fix begin tokens (convert our BEGIN to Twig for)
	*
	* Not meant to be used outside of this context, public because the anonymous function calls this
	*
	* @param string $code
	* @param array $parent_nodes (used in recursion)
	* @return string
	*/
	public function fix_begin_tokens($code, $parent_nodes = array())
	{
		// PHP 5.3 cannot use $this in an anonymous function, so use this as a work-around
		$parent_class = $this;
		$callback = function ($matches) use ($parent_class, $parent_nodes)
		{
			$hard_parents = explode('.', $matches[1]);
			array_pop($hard_parents); // ends with .
			if ($hard_parents)
			{
				$parent_nodes = array_merge($hard_parents, $parent_nodes);
			}

			$name = $matches[2];
			$subset = trim(substr($matches[3], 1, -1)); // Remove parenthesis
			$body = $matches[4];

			// Replace <!-- BEGINELSE -->
			$body = str_replace('<!-- BEGINELSE -->', '{% else %}', $body);

			// Is the designer wanting to call another loop in a loop?
			// <!-- BEGIN loop -->
			// <!-- BEGIN !loop2 -->
			// <!-- END !loop2 -->
			// <!-- END loop -->
			// 'loop2' is actually on the same nesting level as 'loop' you assign
			// variables to it with template->assign_block_vars('loop2', array(...))
			if (strpos($name, '!') === 0)
			{
				// Count the number if ! occurrences
				$count = substr_count($name, '!');
				for ($i = 0; $i < $count; $i++)
				{
					array_pop($parent_nodes);
					$name = substr($name, 1);
				}
			}

			// Remove all parent nodes, e.g. foo, bar from foo.bar.foobar.VAR
			foreach ($parent_nodes as $node)
			{
				$body = preg_replace('#([^a-zA-Z0-9_])' . $node . '\.([a-zA-Z0-9_]+)\.#', '$1$2.', $body);
			}

			// Add current node to list of parent nodes for child nodes
			$parent_nodes[] = $name;

			// Recursive...fix any child nodes
			$body = $parent_class->fix_begin_tokens($body, $parent_nodes);

			// Need the parent variable name
			array_pop($parent_nodes);
			$parent = (!empty($parent_nodes)) ? end($parent_nodes) . '.' : '';

			if ($subset !== '')
			{
				$subset = '|subset(' . $subset . ')';
			}

			$parent = ($parent) ?: 'loops.';
			// Turn into a Twig for loop
			return "{% for {$name} in {$parent}{$name}{$subset} %}{$body}{% endfor %}";
		};

		return preg_replace_callback('#<!-- BEGIN ((?:[a-zA-Z0-9_]+\.)*)([!a-zA-Z0-9_]+)(\([0-9,\-]+\))? -->(.+?)<!-- END \1\2 -->#s', $callback, $code);
	}

	/**
	* Fix IF statements
	*
	* @param string $code
	* @return string
	*/
	protected function fix_if_tokens($code)
	{
		// Replace ELSE IF with ELSEIF
		$code = preg_replace('#<!-- ELSE IF (.+?) -->#', '<!-- ELSEIF $1 -->', $code);

		// Replace our "div by" with Twig's divisibleby (Twig does not like test names with spaces)
		$code = preg_replace('# div by ([0-9]+)#', ' divisibleby($1)', $code);

		$callback = function($matches)
		{
			$inner = $matches[2];
			// Replace $TEST with definition.TEST
			$inner = preg_replace('#(\s\(*!?)\$([a-zA-Z_0-9]+)#', '$1definition.$2', $inner);

			// Replace .foo with loops.foo|length
			$inner = preg_replace('#(\s\(*!?)\.([a-zA-Z_0-9]+)([^a-zA-Z_0-9\.])#', '$1loops.$2|length$3', $inner);

			// Replace .foo.bar with foo.bar|length
			$inner = preg_replace('#(\s\(*!?)\.([a-zA-Z_0-9\.]+)([^a-zA-Z_0-9\.])#', '$1$2|length$3', $inner);

			return "<!-- {$matches[1]}IF{$inner}-->";
		};

		return preg_replace_callback('#<!-- (ELSE)?IF((.*?) (?:\(*!?[\$|\.]([^\s]+)(.*?))?)-->#', $callback, $code);
	}

	/**
	* Fix DEFINE statements and {$VARNAME} variables
	*
	* @param string $code
	* @return string
	*/
	protected function fix_define_tokens($code)
	{
		/**
		* Changing $VARNAME to definition.varname because set is only local
		* context (e.g. DEFINE $TEST will only make $TEST available in current
		* template and any child templates, but not any parent templates).
		*
		* DEFINE handles setting it properly to definition in its node, but the
		* variables reading FROM it need to be altered to definition.VARNAME
		*
		* Setting up definition as a class in the array passed to Twig
		* ($context) makes set definition.TEST available in the global context
		*/

		// Replace <!-- DEFINE $NAME with {% DEFINE definition.NAME
		$code = preg_replace('#<!-- DEFINE \$(.*?) -->#', '{% DEFINE $1 %}', $code);

		// Changing UNDEFINE NAME to DEFINE NAME = null to save from creating an extra token parser/node
		$code = preg_replace('#<!-- UNDEFINE \$(.*?)-->#', '{% DEFINE $1= null %}', $code);

		// Replace all of our variables, {$VARNAME}, with Twig style, {{ definition.VARNAME }}
		$code = preg_replace('#{\$([a-zA-Z0-9_\.]+)}#', '{{ definition.$1 }}', $code);

		// Replace all of our variables, ~ $VARNAME ~, with Twig style, ~ definition.VARNAME ~
		$code = preg_replace('#~ \$([a-zA-Z0-9_\.]+) ~#', '~ definition.$1 ~', $code);

		return $code;
	}

	/**
	* Replace Twig tag masks with Twig tag calls
	*
	* E.g. <!-- BLOCK foo --> with {% block foo %}
	*
	* @param string $code
	* @param array $twig_tags All tags we want to create a mask for
	* @return string
	*/
	protected function replace_twig_tag_masks($code, $twig_tags)
	{
		$callback = function ($matches)
		{
			$matches[1] = strtolower($matches[1]);

			return "{% {$matches[1]}{$matches[2]}%}";
		};

		foreach ($twig_tags as &$tag)
		{
			$tag = strtoupper($tag);
		}

		// twig_tags is an array of the twig tags, which are all lowercase, but we use all uppercase tags
		$code = preg_replace_callback('#<!-- (' . implode('|', $twig_tags) . ')(.*?)-->#',$callback, $code);

		return $code;
	}
}
<br />
<b>Fatal error</b>:  Uncaught Error: Class 'phpbb\template\twig\lexer' not found in /home/acumstiu/gpszone.ro/cache/production/container_4335734bbdd20f586549a504dff5f80c.php:6991
Stack trace:
#0 /home/acumstiu/gpszone.ro/phpbb/di/container_builder.php(156): require()
#1 /home/acumstiu/gpszone.ro/common.php(115): phpbb\di\container_builder-&gt;get_container()
#2 /home/acumstiu/gpszone.ro/viewforum.php(20): include('/home/acumstiu/...')
#3 {main}
  thrown in <b>/home/acumstiu/gpszone.ro/cache/production/container_4335734bbdd20f586549a504dff5f80c.php</b> on line <b>6991</b><br />