make Settings countable

bin/cfg

@@ -22,7 +22,7 @@ foreach ($autoloadFiles as $autoloadFile) {
 	}
 }
 
-$version = '0.2';
+$version = '0.3';
 
 $actions = [ 'show', 'write', 'help' ];
 $settings = ['key' => '', 'value' => ''];
@@ -158,7 +158,7 @@ try {
 			exit(0);
 		}
 	}
-	echo $ex->getMessage().PHP_EOL;
+	fwrite(STDERR, $ex->getMessage().PHP_EOL);
 	exit(1);
 }
 
@@ -204,7 +204,7 @@ try {
 		$cfg->load(require($cfgFile));
 	}
 } catch (Exception $e) {
-	echo "Error: ".$e->getMessage()."\n";
+	fwrite(STDERR, "Error: ".$e->getMessage().PHP_EOL);
 	exit(1);
 }
 //var_dump($cfg);
@@ -220,7 +220,7 @@ if ($settings['key'])
 			$result = $result->{$setting};
 		}
 		catch (\OutOfRangeException $e) {
-			echo $e->getMessage().PHP_EOL;
+			fwrite(STDERR, $e->getMessage().PHP_EOL);
 			exit(1);
 		}
 	}

src/Settings.php

@@ -26,7 +26,7 @@ namespace rabe\Util;
  * Settings Class to read Configuration Files
  * @author Norbert.e.Wagner dev@norb.me
  */
-class Settings implements \Iterator
+class Settings implements \Iterator, \Countable
 {
 	private const SITE = 0x01;
 	
@@ -314,6 +314,17 @@ class Settings implements \Iterator
 
 	// }}}
 
+	// Countable {{{
+	/**
+	 * Count elements
+	 * @link https://www.php.net/countable.count.php
+	 */
+	public function count()
+	{
+		count($this->settings);
+	}
+	// }}}
+	
 	// Magic getter/setter methods {{{
 	public function __set( $name, $value )
 	{