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<?PHP
	$db_host="localhost";
	$db_user="root";
	$db_password="";
	$db_name="versandhandel";

	$db=new PDO("mysql:host=$db_host; dbname=$db_name; charset=utf8", $db_user, "");
	$db->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_WARNING);
?>

<!DOCTYPE html>
<html>
	<head>
	<meta charset="utf-8" />
		<title> </title>
	</head>
	<body>
		<?PHP
		if (!file_exists("C:/Users/3406/xampp/htdocs/goe/sequ_files")) {
			echo mkdir("C:/Users/3406/xampp/htdocs/goe/sequ_files");
			echo mkdir("C:/Users/3406/xampp/htdocs/goe/sequ_files/Verz1");
			echo mkdir("C:/Users/3406/xampp/htdocs/goe/sequ_files/Verz2");
			echo mkdir("C:/Users/3406/xampp/htdocs/goe/sequ_files/Verz1/Unterverz1");
		}
		//a.txt
		$a=fopen("a.txt","w");

		for($i=1;$i<=50;$i++){
			fwrite($a,"$i abcdef\n");
		}

		//b.txt
		//$b=fopen("b.txt","w");

		//for($j=1;$j<=50;$j=$j+2){
		//	fwrite($b,"$j abcdef\n");
		//}

		$zeilen=file("a.txt");
		$b=fopen("b.txt","w");
		for($j=1;$j <= count($zeilen); $j=$j+2){
		   fwrite($b,"$zeilen[$j]");
		}

		//c.txt
		?>
	</body>
</html>