added sample depicting usage

Author: sameer-shelavale

CountryArray.php

@@ -290,7 +290,7 @@ public static function get( $keyField = 'a2', $requestedField = 'name' ){
 
         $result = array();
         //copy each requested field from the countries array
-        foreach( SELF::$countries as $k => $country ){
+        foreach( self::$countries as $k => $country ){
             if( $keyField ){
                 $result[ $country[ $keyField ] ] = $country[ $requestedField ];
             }else{
@@ -328,7 +328,7 @@ public static function get2d( $keyField = 'a2', $requestedFields = array( 'a2',
         }
         $result = array();
         //copy each requested field from the countries array
-        foreach( SELF::$countries as $k => $country ){
+        foreach( self::$countries as $k => $country ){
             $tmp = array( );
             foreach( $requestedFields as $field ){
                 $tmp[ $field ] = $country[ $field ];

sample/sample1.php

@@ -0,0 +1,24 @@
+<?php
+/**
+ * Created by PhpStorm.
+ * User: sam
+ * Date: 12/15/14
+ * Time: 8:50 PM
+ */
+include( "../CountryArray.php" );
+
+
+$countries = CountryArray::get();
+var_dump( $countries );
+
+
+$countries = CountryArray::get2d( 'a3' );
+var_dump( $countries );
+
+
+$countries = CountryArray::get2d( 'a3', array( 'name', 'isd', 'continent' ) );
+var_dump( $countries );
+
+
+$countries = CountryArray::get2d( null, array( 'name', 'n', 'isd', 'continent' ) );
+var_dump( $countries );