Fixed phpdoc broken links to PHP manual pages [skip ci]

framework/caching/MemCacheServer.php

@@ -10,7 +10,7 @@ namespace yii\caching;
 /**
  * MemCacheServer represents the configuration data for a single memcache or memcached server.
  *
- * See [PHP manual](http://www.php.net/manual/en/function.Memcache-addServer.php) for detailed explanation
+ * See [PHP manual](http://php.net/manual/en/memcache.addserver.php) for detailed explanation
  * of each configuration property.
  *
  * For more details and usage information on Cache, see the [guide article on caching](guide:caching-overview).

framework/db/Command.php

@@ -365,7 +365,7 @@ class Command extends Component
     /**
      * Executes the SQL statement and returns the first row of the result.
      * This method is best used when only the first row of result is needed for a query.
-     * @param int $fetchMode the result fetch mode. Please refer to [PHP manual](http://www.php.net/manual/en/function.PDOStatement-setFetchMode.php)
+     * @param int $fetchMode the result fetch mode. Please refer to [PHP manual](http://php.net/manual/en/pdostatement.setfetchmode.php)
      * for valid fetch modes. If this parameter is null, the value set in [[fetchMode]] will be used.
      * @return array|false the first row (in terms of an array) of the query result. False is returned if the query
      * results in nothing.

framework/db/Connection.php

@@ -153,7 +153,7 @@ class Connection extends Component
 
     /**
      * @var string the Data Source Name, or DSN, contains the information required to connect to the database.
-     * Please refer to the [PHP manual](http://www.php.net/manual/en/function.PDO-construct.php) on
+     * Please refer to the [PHP manual](http://php.net/manual/en/pdo.construct.php) on
      * the format of the DSN string.
      *
      * For [SQLite](http://php.net/manual/en/ref.pdo-sqlite.connection.php) you may use a path alias
@@ -173,7 +173,7 @@ class Connection extends Component
     /**
      * @var array PDO attributes (name => value) that should be set when calling [[open()]]
      * to establish a DB connection. Please refer to the
-     * [PHP manual](http://www.php.net/manual/en/function.PDO-setAttribute.php) for
+     * [PHP manual](http://php.net/manual/en/pdo.setattribute.php) for
      * details about available attributes.
      */
     public $attributes;
@@ -789,7 +789,7 @@ class Connection extends Component
      * Returns the ID of the last inserted row or sequence value.
      * @param string $sequenceName name of the sequence object (required by some DBMS)
      * @return string the row ID of the last row inserted, or the last value retrieved from the sequence object
-     * @see http://www.php.net/manual/en/function.PDO-lastInsertId.php
+     * @see http://php.net/manual/en/pdo.lastinsertid.php
      */
     public function getLastInsertID($sequenceName = '')
     {
@@ -801,7 +801,7 @@ class Connection extends Component
      * Note that if the parameter is not a string, it will be returned without change.
      * @param string $value string to be quoted
      * @return string the properly quoted string
-     * @see http://www.php.net/manual/en/function.PDO-quote.php
+     * @see http://php.net/manual/en/pdo.quote.php
      */
     public function quoteValue($value)
     {

framework/helpers/BaseArrayHelper.php

@@ -761,7 +761,7 @@ class BaseArrayHelper
      * but additionally works on objects that implement the [[\Traversable]] interface.
      * @param mixed $var The variable being evaluated.
      * @return bool whether $var is array-like
-     * @see http://php.net/manual/en/function.is_array.php
+     * @see http://php.net/manual/en/function.is-array.php
      * @since 2.0.8
      */
     public static function isTraversable($var)