PHP Class/Function with SQL

Question

Does anybody know if this code will work? I mean, if the connection doesn't work, will the function return the echo, and if it does work, will it return the mysqli_result object? Thanks!

<?php

class Query{
var $host="localhost";
var $db_user="user";
var $password="pass";
var $db="data_base";

function sql_query($query){
$con=mysqli_connect($this->host,$this->db_user,$this->pass,$this->db);

if (mysqli_connect_errno()) {
echo 'Error al conectar con base de datos: '.mysqli_connect_errno();
}

else{
$retval=mysqli_query($con,$query);
return $retval;
}
}
}

?>

Answer 1

I don't personally use mysqli. I use mysql with " or die ()" statements after. But, from what I can tell this should work as you expect it to.