prepare('SELECT sample_cases_json, expected_output FROM challenges WHERE id = ?');
$stmt->execute([$challenge_id]);
$challenge = $stmt->fetch();
if ($language === 'python') {
// WARNING: Executing user-submitted code with shell_exec is a major security risk.
// This should be replaced with a secure sandboxed execution environment.
$temp_file = tempnam(sys_get_temp_dir(), 'py');
file_put_contents($temp_file, $solution);
$output = shell_exec('python3 ' . $temp_file . ' 2>&1');
unlink($temp_file);
echo "" . htmlspecialchars($output) . "
";
} else {
echo " Running code for this language is not yet supported.
";
}
} else {
echo " Please provide a solution.
";
}
} else {
header('Location: ../challenges.php');
exit();
}