PHP Validation problems with mysql count rows and array_push

[Rockonmetal]

I have a registration form, and it is not working properly. This is when I fill out all of the fields.
I get these two errors:
Warning: mysql_num_rows(): supplied argument is not a valid MySQL result resource in C:\wamp\www\getaband.net\register\musicians.php on line 31

<?php
$errors = array("fix.php?register=musician");
function validate($input){
    if($input=="nameFirst"){
        strip_tags($_POST['nameFirst']);
        $c++;
    }
    elseif($input=="nameLast"){
        strip_tags($_POST['nameLast']);
        $c++;
    }
    elseif($input=="email"){
        
        if(!filter_var($_POST['emailAddress'], FILTER_VALIDATE_EMAIL)){
            array_push($errors,"&errorid3b=tripped");
            
        }
    else
        {
            $con = mysql_connect("localhost","","");
            if (!$con)
              {
              die('Could not connect: ' . mysql_error());
              }

            $db_selected = mysql_select_db("SECRET",$con);
            $sql = "SELECT * FROM musicians WHERE email='$_POST[emailAddress]'";
            $result = mysql_query($sql,$con);
            if(mysql_num_rows($result)>=1){ //Line 31
                array_push($errors,"&errorid3c=tripped");
            }
            else{
                $c++;
            }
        }
    }
    elseif($input=="sex"){
        strip_tags($_POST['sex']);
        if($_POST['sex']=="male" || $_POST['sex']=="female"){
            $c++;
        }
    else
        {
            array_push($errors,"&errorid4b=tripped"); // Line 46
        }
    }
    elseif($input=="password"){
        strip_tags($_POST['password']);
        strip_tags($_POST['password2']);
        if($_POST['password']==$_POST['password2']){
            $c++;
        }
    else
        {
            array_push($errors,"&errorid5b=tripped");
        }
    }
    elseif((checkdate($_POST['month'],$_POST['day'],$_POST['year']))){
    $c++;
    }
    else{
        array_push($errors,"&errorid6b=tripped");
    }
}
?>
<?php
function createAccount(){
    $con = mysql_connect("localhost","","");
if (!$con)
  {
  die('Could not connect: ' . mysql_error());
  }
mysql_select_db("SECRET!", $con);
$sql="INSERT INTO musician (first_name, last_name, email, password, birthday, birthmonth, birthyear, primary_instrument, country) VALUES('$_POST[firstName]','$_POST[lastName]','$_POST[emailAddress]','md5($_POST[password])','$_POST[day]','$_POST[month]','$_POST[year]','$_POST[primary_instrument]','$_POST[country]')";
if (!mysql_query($sql,$con))
  {
  die('Error: ' . mysql_error());
  }
mysql_close($con);
}
?>

Hopefully I am using array_push correctly. If I'm right, it should insert the error code at the last position of the array? Something like that...

I don't know whats going on the with the mysql_row_count thingy... I'm just trying to check there to make sure that there are no accounts with that email address.

Thanks a lot...
*BTW there is a second part, but its lengthy so let me know if you guys need it to figure out whats wrong...*

[jim_keller]

"mysql_num_rows(): supplied argument is not a valid MySQL result resource" means that the $result you passed to mysql_num_rows() wasn't actually a mySQL result set. This is due to the query not executing properly, so it didn't return any resulset - not even a blank one. I would try doing echo $sql; to see what your query actually looks like when parsed, then try to execute it manually in mySQL. Is it possible one of your field names is wrong? e.g. should "email" be "musician_email" ?