Warning: _() expects exactly 1 parameter, 2 given code example
Example 1: Warning: func_get_arg() expects exactly 1 parameter, 0 given in
$func_data = array();
for($i = 0;$i < func_num_args();$i++)
{
array_push($func_data,func_get_arg($i));
}
Example 2: Warning: mysqli_error() expects exactly 1 parameter, 0
Change
die (mysqli_error());
to
die('Error: ' . mysqli_error($myConnection));
in the query
$query = mysqli_query($myConnection, $sqlCommand) or die (mysqli_error());