diff --git a/framework/yii/i18n/BaseMessageFormatter.php b/framework/yii/i18n/BaseMessageFormatter.php
new file mode 100644
index 0000000..73968c0
--- /dev/null
+++ b/framework/yii/i18n/BaseMessageFormatter.php
@@ -0,0 +1,168 @@
+<?php
+/**
+ * @link http://www.yiiframework.com/
+ * @copyright Copyright (c) 2008 Yii Software LLC
+ * @license http://www.yiiframework.com/license/
+ */
+
+namespace yii\i18n;
+
+use yii\base\NotSupportedException;
+
+/**
+ * BaseMessageFormatter is a fallback implementation for the PHP intl MessageFormatter that is used in case intl extension is not installed.
+ *
+ * This implementation only supports message plural formatting for english and simple parameters.
+ * All other formats are ignored.
+ *
+ * @author Carsten Brandt <mail@cebe.cc>
+ * @since 2.0
+ */
+class BaseMessageFormatter
+{
+	private $_locale;
+	private $_pattern;
+
+	/**
+	 * Constructs a new Message Formatter
+	 * @link http://php.net/manual/en/messageformatter.create.php
+	 * @param string $locale The locale to use when formatting arguments
+	 * @param string $pattern The pattern string to stick arguments into.
+	 * The pattern uses an 'apostrophe-friendly' syntax; it is run through
+	 * umsg_autoQuoteApostrophe before being interpreted.
+	 */
+	public function __construct($locale, $pattern)
+	{
+		$this->_locale = $locale;
+		$this->_pattern = $pattern;
+	}
+
+	/**
+	 * Constructs a new Message Formatter
+	 * @link http://php.net/manual/en/messageformatter.create.php
+	 * @param string $locale The locale to use when formatting arguments
+	 * @param string $pattern The pattern string to stick arguments into.
+	 * The pattern uses an 'apostrophe-friendly' syntax; it is run through
+	 * umsg_autoQuoteApostrophe before being interpreted.
+	 * @return MessageFormatter The formatter object
+	 */
+	public static function create($locale, $pattern)
+	{
+		return new static($locale, $pattern);
+	}
+
+	/**
+	 * Format the message
+	 * @link http://php.net/manual/en/messageformatter.format.php
+	 * @param array $args Arguments to insert into the format string
+	 * @return string The formatted string, or <b>FALSE</b> if an error occurred
+	 */
+	public function format(array $args)
+	{
+		return static::formatMessage($this->_locale, $this->_pattern, $args);
+	}
+
+	/**
+	 * Quick format message
+	 * @link http://php.net/manual/en/messageformatter.formatmessage.php
+	 * @param string $locale The locale to use for formatting locale-dependent parts
+	 * @param string $pattern The pattern string to insert things into.
+	 * The pattern uses an 'apostrophe-friendly' syntax; it is run through
+	 * umsg_autoQuoteApostrophe before being interpreted.
+	 * @param array $args The array of values to insert into the format string
+	 * @return string The formatted pattern string or <b>FALSE</b> if an error occurred
+	 */
+	public static function formatMessage($locale, $pattern, array $args)
+	{
+		// TODO implement plural format
+
+		$a = [];
+		foreach($args as $name => $value) {
+			$a['{' . $name . '}'] = $value;
+		}
+		return strtr($pattern, $a);
+	}
+
+	/**
+	 * Parse input string according to pattern
+	 * @link http://php.net/manual/en/messageformatter.parse.php
+	 * @param string $value The string to parse
+	 * @return array An array containing the items extracted, or <b>FALSE</b> on error
+	 */
+	public function parse ($value)
+	{
+		throw new NotSupportedException('You have to install PHP intl extension to use this feature.');
+	}
+
+	/**
+	 * Quick parse input string
+	 * @link http://php.net/manual/en/messageformatter.parsemessage.php
+	 * @param string $locale The locale to use for parsing locale-dependent parts
+	 * @param string $pattern The pattern with which to parse the <i>value</i>.
+	 * @param string $source The string to parse, conforming to the <i>pattern</i>.
+	 * @return array An array containing items extracted, or <b>FALSE</b> on error
+	 */
+	public static function parseMessage ($locale, $pattern, $source)
+	{
+		throw new NotSupportedException('You have to install PHP intl extension to use this feature.');
+	}
+
+	/**
+	 * Set the pattern used by the formatter
+	 * @link http://php.net/manual/en/messageformatter.setpattern.php
+	 * @param string $pattern The pattern string to use in this message formatter.
+	 * The pattern uses an 'apostrophe-friendly' syntax; it is run through
+	 * umsg_autoQuoteApostrophe before being interpreted.
+	 * @return bool <b>TRUE</b> on success or <b>FALSE</b> on failure.
+	 */
+	public function setPattern ($pattern)
+	{
+		$this->_pattern = $pattern;
+		return true;
+	}
+
+	/**
+	 * Get the pattern used by the formatter
+	 * @link http://php.net/manual/en/messageformatter.getpattern.php
+	 * @return string The pattern string for this message formatter
+	 */
+	public function getPattern()
+	{
+		return $this->_pattern;
+	}
+
+	/**
+	 * Get the locale for which the formatter was created.
+	 * @link http://php.net/manual/en/messageformatter.getlocale.php
+	 * @return string The locale name
+	 */
+	public function getLocale()
+	{
+		return $this->_locale;
+	}
+
+	/**
+	 * Get the error code from last operation
+	 * @link http://php.net/manual/en/messageformatter.geterrorcode.php
+	 * @return int The error code, one of UErrorCode values. Initial value is U_ZERO_ERROR.
+	 */
+	public function getErrorCode()
+	{
+		return 0;
+	}
+
+	/**
+	 * Get the error text from the last operation
+	 * @link http://php.net/manual/en/messageformatter.geterrormessage.php
+	 * @return string Description of the last error.
+	 */
+	public function getErrorMessage()
+	{
+		return '';
+	}
+}
+
+if (!class_exists('MessageFormatter', false)) {
+	class_alias('yii\\i18n\\BaseMessageFormatter', 'MessageFormatter');
+}
+
diff --git a/framework/yii/i18n/MessageFormatter.php b/framework/yii/i18n/MessageFormatter.php
index 93c4563..6521d65 100644
--- a/framework/yii/i18n/MessageFormatter.php
+++ b/framework/yii/i18n/MessageFormatter.php
@@ -7,6 +7,10 @@
 
 namespace yii\i18n;
 
+if (!class_exists('MessageFormatter', false)) {
+	require_once(__DIR__ . '/BaseMessageFormatter.php');
+}
+
 /**
  * MessageFormatter is an enhanced version of PHP intl class that no matter which PHP and ICU versions are used:
  *