Why am I getting these date based Error messages?

PHP
1

Hi,

I am generating a code based on this method:

	$code = rand(1000000000, 10000000000);
	$yr = date(Y);
	$mnth = date(n);
	$day = date(j);
	$code = $yr . $mnth . $day . $code;

The code is generated correctly, but then I am getting these strange Error messages from the lines that produce the date values:

Notice: Use of undefined constant Y - assumed ‘Y’ in /var/www/html/anoox.com/test/random_gen_code.php on line 18

Notice: Use of undefined constant n - assumed ‘n’ in /var/www/html/anoox.com/test/random_gen_code.php on line 19

Notice: Use of undefined constant j - assumed ‘j’ in /var/www/html/anoox.com/test/random_gen_code.php on line 20

Why?
And How do I get rid of these erroneous error messages?

2

The other pages may have E_NOTICE disabled; or they might define Y n and j as constants (for some reason)

3

Thanks. That took care off the error messages.
What is really strange is that I am using the same exact code elsewhere in my programs and those error messages are not generated, but they are in this case!!!

4

put quotes around your strings.