PDO fails when called inside a function - php

Question

I'm trying to use a function to execute all my PDO queries. I am experiencing a 500 error when using the function. I am able to execute the code successfully if I don't use the function.
you'll notice that the only difference between the working and non-working code blocks below is the use of the function.
Why does the code fail when called inside a function?
WORKS:
try {
$conn = new PDO($dsn, $username, $password, $options);
}
catch (PDOException $e){
echo "Connection failed: " . $e->getMessage();
}
$info = array();
$info['fname'] = $_POST['fname'];
$info['lname'] = $_POST['lname'];
$info['email'] = $_POST['email'];
$info['password'] = password_hash($_POST['password'], PASSWORD_DEFAULT);
$info['datecreated'] = date("Y-m-d H:i:s");
$sql = "INSERT INTO Users (fname, lname, email, password, datecreated)
VALUES (:fname, :lname, :email, :password, :datecreated)";
try {
$stmt=$conn->prepare($sql);
$stmt->execute($info);
}
catch (PDOException $e)
{
echo $sql . "PDO query failed: <br>" . $e->getMessage();
}
DOESN'T WORK
try {
$conn = new PDO($dsn, $username, $password, $options);
}
catch (PDOException $e){
echo "Connection failed: " . $e->getMessage();
}
$info = array();
$info['fname'] = $_POST['fname'];
$info['lname'] = $_POST['lname'];
$info['email'] = $_POST['email'];
$info['password'] = password_hash($_POST['password'], PASSWORD_DEFAULT);
$info['datecreated'] = date("Y-m-d H:i:s");
$sql = "INSERT INTO Users (fname, lname, email, password, datecreated)
VALUES (:fname, :lname, :email, :password, :datecreated)";
function pdoquery ($sql, $info){
try {
$stmt=$conn->prepare($sql);
$stmt->execute($info);
}
catch (PDOException $e)
{
echo $sql . "PDO query failed: <br>" . $e->getMessage();
}
}
pdoquery($sql,$info);

Answer 1

Try following
$info = array();
$info['fname'] = $_POST['fname'];
$info['lname'] = $_POST['lname'];
$info['email'] = $_POST['email'];
$info['password'] = password_hash($_POST['password'], PASSWORD_DEFAULT);
$info['datecreated'] = date("Y-m-d H:i:s");
$sql = "INSERT INTO Users (fname, lname, email, password, datecreated)
VALUES (:fname, :lname, :email, :password, :datecreated)";
function pdoquery ($sql, $info, $conn){
$stmt=$conn->prepare($sql);
$stmt->execute($info);
return $stmt;
}
pdoquery($sql,$info, $conn);
In a nutshell, you forgot to pass $conn to your function.