PHP Function to validate setting

PHP
17

pdo.inc.php

<?php
// Connect to MySQL
$dsn = 'mysql:dev=dev;host=127.0.0.1';
$username = 'dev';
$password = 'dev.dev';

$pdo = new PDO($dsn, $username, $password,[PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION]);
?>

functions.inc.php

<?php
include_once('pdo.inc.php');

function ValidateFlagValue($pdo, $FlagName, $FlagValue)
{
    $sql  = "SELECT 1 FROM flags WHERE flagname = ? AND ? BETWEEN MIN(flagvalue) AND MAX(flagvalue) LIMIT 1";
    $stmt = $pdo->prepare($sql);
    $stmt->execute([$FlagName, $FlagValue]);
    return $stmt->fetchColumn();
}

function GetFlagDescription($pdo, $FlagName, $FlagValue)
{
    $sql  = "SELECT 1 FROM flags WHERE flagname = ? AND flagvalue = ? LIMIT 1";
    $stmt = $pdo->prepare($sql);
    $stmt->execute([$FlagName, $FlagValue]);
    return $stmt->fetchColumn();
}
?>

test.php

<?php
include_once('functions.inc.php');

if (ValidateFlagValue('intent',2)) {
	echo "flag valid";
} else {
	echo "flag invalid";
}
?>

I’m not understanding this PDO at all :angry:

Why are you passing $pdo into the function because it doesn’t work.