连接数据库

Question

I am having trouble configuring my connection. I have a getConnection method that looks like this: protected function getConnection(){

$mysqli = new mysqli('xxxxxxxxx', 'xxxxxx', 'xxxxxx', 'xxxxxxx');

if($mysqli->connect_errno > 0){
    die('Unable to connect to database [' . $mysqli->connect_error . ']');
   }
 }

within every test function I am forced to implement the following code to get connection to the database: $mysqli = new mysqli('xxxxxxxxxx', 'xxxxxxxxx', 'xxxxxx', 'xxxxxxx');

how do I call the getConnection() method in a more correct manner? I have tried things such as: $mysqli=parent::getConnection(); but I always get error messages stating that the method is undefined. Any thoughts?

Answer 1

If your connection is shared between several functions, and that's usually the case since you want to connect to your database only once by page call and not once by function call , then create your mysqli object in a persistant scope, not in a function scope.

Then you access it as a function parameter, a [parent] class attribute or a global variable depending on your code.