Warning: mysqli_query() expects parameter 1 to be mysqli, bool given in F:\OpenServer\domains\_sub\_vveb.ws\1.vveb.ws\landing-main\db_maincore_php7.php on line 62

Warning: mysqli_errno() expects parameter 1 to be mysqli, bool given in F:\OpenServer\domains\_sub\_vveb.ws\1.vveb.ws\landing-main\db_maincore_php7.php on line 71

Warning: mysqli_error() expects parameter 1 to be mysqli, bool given in F:\OpenServer\domains\_sub\_vveb.ws\1.vveb.ws\landing-main\db_maincore_php7.php on line 71
Unable to establish connection to MySQL
: