$files = @(
    "public_html\login\login.php",
    "public_html\tests\test_db.php",
    "public_html\account\wallet\index.php",
    "public_html\account\profile\index.php",
    "public_html\cron\archive_matches.php",
    "public_html\account\settings\update_settings.php",
    "public_html\account\settings\index.php",
    "public_html\account\settings\delete_account.php",
    "public_html\account\settings\change_password_verify.php",
    "public_html\account\settings\change_password_request.php",
    "public_html\account\settings\change_email_verify.php",
    "public_html\account\settings\change_email_request.php",
    "public_html\api\updateUser.php",
    "public_html\api\test_db_connection.php",
    "public_html\administration\includes\config.php",
    "public_html\api\deleteUser.php",
    "public_html\api\getUser.php",
    "public_html\api\getMatches.php",
    "public_html\api\loadUsers.php",
    "public_html\login\verify.php",
    "public_html\login\register.php",
    "public_html\login\recover_account.php",
    "private_html\login\login.php",
    "private_html\tests\test_db.php",
    "private_html\account\wallet\index.php",
    "private_html\account\profile\index.php",
    "private_html\cron\archive_matches.php",
    "private_html\account\settings\update_settings.php",
    "private_html\account\settings\index.php",
    "private_html\account\settings\delete_account.php",
    "private_html\account\settings\change_password_verify.php",
    "private_html\account\settings\change_password_request.php",
    "private_html\account\settings\change_email_verify.php",
    "private_html\account\settings\change_email_request.php",
    "private_html\api\updateUser.php",
    "private_html\api\test_db_connection.php",
    "private_html\administration\includes\config.php",
    "private_html\api\deleteUser.php",
    "private_html\api\getUser.php",
    "private_html\api\getMatches.php",
    "private_html\api\loadUsers.php",
    "private_html\login\verify.php",
    "private_html\login\register.php",
    "private_html\login\recover_account.php"
)
$targetLine = '$pdo->exec("SET NAMES utf8mb4 COLLATE utf8mb4_unicode_ci");'
$results = @()
foreach ($file in $files) {
    if (Test-Path $file) {
        $content = Get-Content $file -Raw
        if ($content.Contains($targetLine)) {
            $results += [PSCustomObject]@{File=$file; Status="Skipped (Already present)"}
        } elseif ($content -match '\$pdo\s*=\s*new\s+PDO\s*\([\s\S]*?\);') {
            $newContent = $content -replace '(\$pdo\s*=\s*new\s+PDO\s*\([\s\S]*?\);)', "`$1`r`n$targetLine"
            Set-Content $file $newContent
            $results += [PSCustomObject]@{File=$file; Status="Modified"}
        } else {
            $results += [PSCustomObject]@{File=$file; Status="Skipped (PDO instantiation not found)"}
        }
    } else {
        $results += [PSCustomObject]@{File=$file; Status="Error (File not found)"}
    }
}
$results | Format-Table -AutoSize