php print different color in rows

Question

I try to print out all user email from table, but i want odd number print in red even number print in blue. how to do this in while loop?

$connect=mysql_connect("localhost", "root", ""); $database=mysql_select_db("phplogin", $connect); $SQL=mysql_query("SELECT * FROM users"); $num=mysql_num_rows($SQL); $start=0; while($start<$num){ $result_id=mysql_result($SQL, $start, "id"); $result_email=mysql_result($SQL, $start, "email"); echo "<b style='color:red'>" . $result_id . $result_email . "</b><br/>"; echo "<b style='color:blue'>" . $result_id . $result_email . "</b><br/>"; $start++; }

I'm so sorry I have to put this here, but could not resist - this is pretty much the Fizz Buzz question — Duniyadnd
– Duniyadnd, Commented Dec 15, 2012 at 3:27
You can do this with just css plus inline css is bad practice, as well as using <b>. — elclanrs
– elclanrs, Commented Dec 15, 2012 at 3:37

christopher · Accepted Answer · 2012-12-15 03:27:47Z

$connect=mysql_connect("localhost", "root", ""); $database=mysql_select_db("phplogin", $connect); $SQL=mysql_query("SELECT * FROM users"); $num=mysql_num_rows($SQL); $start=0; while($start<$num){ $result_id=mysql_result($SQL, $start, "id"); $result_email=mysql_result($SQL, $start, "email"); if ($start&1) { echo "<b style='color:red'>" . $result_id . $result_email . "</b><br/>"; } else { echo "<b style='color:blue'>" . $result_id . $result_email . "</b><br/>"; } $start++; }

How $start&1 works here? Whether it should take all odd ones?
@Justin no clue. It just does. Couldn't find any documentation anywhere
Yeah but I can't find in the PHP.net documentation. I found this: php.net/manual/en/language.operators.bitwise.php, but it doesn't seem to describe this behavior.

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