检查代码时不断出现语法错误

Question

This is what i entered in the code checker it is wracking my brain to get this done. It keeps telling me I have

Parse error: syntax error, unexpected T_LNUMBER, expecting T_VARIABLE or '$' on line 8

$servername = "localhost";
$username = "user";
$password = "pass";
$db= "db";
$tbl_name = "usermanagement";


$conn =  mysql_connect($localhost, $user, $pass);
mysql_select_db($db);

if ( $conn->connect_error)  {
    die("Connection failed:  " .  $conn->connect_error);
}
echo "Connected successfully";

Answer 1

I think you want to change this:

$conn->connect_error

to this:

mysql_error()

Also i would use the defined variable like this:

$conn =  mysql_connect($servername, $username, $password);

Since you're using mysql_* API and not mysqli_* where you can use this: $mysqli->connect_error because then you have a Object!.

Also i would recommend you to use mysqli_* or PDO