CodeIgniter: ignore CSRF in many URIs

config.php

// Put those lines in application/config/config.php

$csrf_ignore = [
	'/page1.html',
	'/about.html'
];

$is_csrf_condition_met = true;

foreach($csrf_ignore as $ci){

	if (strpos($_SERVER["REQUEST_URI"], $ci) !== FALSE) {
		
		$is_csrf_condition_met = false;
		break;
	}
}

$config['csrf_protection'] = $is_csrf_condition_met;