Question

I’ve VERY NEW to PDO. I created the below function, but I read having the global database ($dbo) is a bad idea. The code works and outputs what I want it too. Any suggestions on how to improve/fix?

function langString($lang_id) { 
    global $dbo;
    $lang_result=$dbo->prepare("SELECT lang_string FROM lang WHERE lang_id=:lang_id");
    $lang_result->bindParam(":lang_id",$lang_id,PDO::PARAM_INT,3);
    if($lang_result->execute()){ 
        $lang_row = $lang_result->fetch(PDO::FETCH_OBJ);
        echo "<br><br>$lang_row->lang_string";
    }
}

echo langString(3);

Answer 1

Pass the variable as an argument to the function

function langString($lang_id, $dbo) {   
    $lang_result=$dbo->prepare("SELECT lang_string FROM lang WHERE lang_id=:lang_id");
    $lang_result->bindParam(":lang_id",$lang_id,PDO::PARAM_INT,3);
    if($lang_result->execute()){ 
        $lang_row = $lang_result->fetch(PDO::FETCH_OBJ);
        echo "<br><br>$lang_row->lang_string";
    }
}

echo langString(3, $dbo);