chamilo-lms2/main/extra/update_exam.php

<?php
/* For licensing terms, see /license.txt */

require_once '../inc/global.inc.php';

$allow = api_get_configuration_value('extra');
if (empty($allow)) {
    exit;
}

$tbl_stats_exercices = Database::get_main_table(TABLE_STATISTIC_TRACK_E_EXERCISES);

$ex_idd = isset($_POST['exe_id']) ? (int) $_POST['exe_id'] : '';
$ex_user_id = isset($_POST['ex_user_id']) ? (int) $_POST['ex_user_id'] : '';
$mod_no = isset($_POST['mod_no']) ? Database::escape_string($_POST['mod_no']) : '';
$score_ex = isset($_POST['score_ex']) ? Database::escape_string($_POST['score_ex']) : '';
$score_rep1 = isset($_POST['score_rep1']) ? Database::escape_string($_POST['score_rep1']) : '';
$score_rep2 = isset($_POST['score_rep2']) ? Database::escape_string($_POST['score_rep2']) : '';
$coment = isset($_POST['coment']) ? Database::escape_string($_POST['coment']) : '';
$student_id = isset($_POST['student_id']) ? Database::escape_string($_POST['student_id']) : '';

$sql = "UPDATE $tbl_stats_exercices SET 
          mod_no='$mod_no', score_ex='$score_ex', score_rep1='$score_rep1', score_rep2='$score_rep2', coment='$coment'
		WHERE exe_id = '$ex_idd'
    ";
Database::query($sql);
header("location:../extra/myStudents.php?student=$student_id");
exit;