diff --git a/yii/requirements/YiiRequirementChecker.php b/yii/requirements/YiiRequirementChecker.php
index b8997bd..b63d1aa 100644
--- a/yii/requirements/YiiRequirementChecker.php
+++ b/yii/requirements/YiiRequirementChecker.php
@@ -19,11 +19,16 @@ class YiiRequirementChecker
 	 * Check the given requirements, collecting results into internal field.
 	 * This method can be invoked several times checking different requirement sets.
 	 * Use {@link getResult()} or {@link render()} to get the results.
-	 * @param array $requirements requirements to be checked.
+	 * @param array|string $requirements requirements to be checked.
+	 * If an array, it is treated as the set of requirements;
+	 * If a string, it is treated as the path of the file, which contains the requirements;
 	 * @return YiiRequirementChecker self instance.
 	 */
 	function check($requirements)
 	{
+		if (is_string($requirements)) {
+			$requirements = require($requirements);
+		}
 		if (!is_array($requirements)) {
 			$this->usageError("Requirements must be an array!");
 		}
@@ -60,6 +65,15 @@ class YiiRequirementChecker
 	}
 
 	/**
+	 * Performs the check for the Yii core requirements.
+	 * @return YiiRequirementChecker self instance.
+	 */
+	public function checkYii()
+	{
+		return $this->check(dirname(__FILE__).DIRECTORY_SEPARATOR.'yiirequirements.php');
+	}
+
+	/**
 	 * Return the check results.
 	 * @return array|null check results.
 	 */
diff --git a/yii/requirements/yiirequirements.php b/yii/requirements/yiirequirements.php
new file mode 100644
index 0000000..2c6f4d8
--- /dev/null
+++ b/yii/requirements/yiirequirements.php
@@ -0,0 +1,38 @@
+<?php
+/**
+ * This is the Yii core requirements for the {@link YiiRequirementChecker} instance.
+ */
+return array(
+	array(
+		'name' => 'PHP version',
+		'mandatory' => true,
+		'condition' => version_compare(PHP_VERSION, '5.3.0', '>='),
+		'by' => '<a href="http://www.yiiframework.com">Yii Framework</a>',
+		'memo' => 'PHP 5.3.0 or higher is required.',
+	),
+	array(
+		'name' => 'Reflection extension',
+		'mandatory' => true,
+		'condition' => class_exists('Reflection', false),
+		'by' => '<a href="http://www.yiiframework.com">Yii Framework</a>',
+	),
+	array(
+		'name' => 'PCRE extension',
+		'mandatory' => true,
+		'condition' => extension_loaded('pcre'),
+		'by' => '<a href="http://www.yiiframework.com">Yii Framework</a>',
+	),
+	array(
+		'name' => 'SPL extension',
+		'mandatory' => true,
+		'condition' => extension_loaded('SPL'),
+		'by' => '<a href="http://www.yiiframework.com">Yii Framework</a>',
+	),
+	array(
+		'name' => 'MBString extension',
+		'mandatory' => true,
+		'condition' => extension_loaded('mbstring'),
+		'by' => '<a href="http://www.php.net/manual/en/book.mbstring.php">Multibyte string</a> processing',
+		'memo' => 'Required for multibyte encoding string processing.'
+	),
+);
\ No newline at end of file