Question

I have a simple mysql query checking the database table ‘all_users’ for an e-mail which was entered in a text field.

The e-mail is in a variable called $email.

In my test case, $email is [e-mail] and that e-mail exists in the database table.

When I do this:

$result=mysql_query("select * from all_users where email='$email' ") or die (mysql_error());
$row=mysql_fetch_array($result);
$num=mysql_num_rows($result);

$num is zero even though $row is found.

So when I do echo $row['email']; it correctly prints out ‘[e-mail]’ but when I do echo $num; it’s 0!

What am I doing wrong here? I’ve done this a thousand times but never had this issue.

Answer 1

From http://php.net/manual/en/function.mysql-fetch-array.php – Returns an array that corresponds to the fetched row and moves the internal data pointer ahead

So change the order, i.e. first use mysql_num_rows and only then do mysql_fetch_array