<?php
//ini_set('include_path', '/opt/lampp/htdocs/badminton_coach/_class');
//include('class_sql.php');
echo "juhuuu";
foreach ($_POST as $key => $value) {
	trigger_error($key, E_USER_NOTICE);
}
if ($_POST['checked'] == true) {
	//$sql = new sql('localhost','root','','badminton_coach');
	$sql->insert_into('presence', array('pr_user_kid_uk_id' => $_POST['user_id'], 'pr_training_tr_id' => $_POST['tr_id']));
}
else {
	$sql->execute_query('delete from presence where pr_user_kid_uk_id = ' . $_POST['user_id'] . ' AND pr_training_tr_id = ' . $_POST['tr_id']);
}

?>