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 | function username_exists($username){ global $db; $sql = "SELECT 'username' FROM users WHERE 'username' = '$username'"; $result = mysqli_query($db, $sql); confirmquery( $result ); if (mysqli_num_rows($result) > 0) { return true; }else { return false; } } if(username_exists($username)){ $error['username'] = 'Username already exists'; } |