Warning: mysqli_connect(): (HY000/1049): Unknown database 'bluesms' in D:\xampp-7\htdocs\bluesms\app\db.php on line 11

Warning: mysqli_set_charset() expects parameter 1 to be mysqli, boolean given in D:\xampp-7\htdocs\bluesms\app\db.php on line 12

Fatal error: Uncaught Error: Call to undefined function mysql_real_escape_string() in D:\xampp-7\htdocs\bluesms\add-contact.php:6 Stack trace: #0 {main} thrown in D:\xampp-7\htdocs\bluesms\add-contact.php on line 6