if ($n1 > $n2) {
$n1 = $n1 - $n2;
} else {
$n2 = $n2 - $n1;
}
}
return $n1;
}
function mcm($a, $b)
{
return $a * $b / mcd($a, $b);
}
$primoValore = $_POST["primoValore"];
$secondoValore = $_POST["secondoValore"];
echo '<table class="table table-striped table-bordered">';
echo '<tr><td> Valore Minore </td><td>' . getMinore($primoValore, $secondoValore) . '</td></tr>';
echo '<tr><td> Valore Maggiore </td><td>' . getMaggiore($primoValore, $secondoValore) . '</td></tr>';
echo '<tr><td> MCM </td><td>' . mcm($primoValore, $secondoValore) . '</td></tr>';
echo '</table>';
?>
</div>
</div>
</div>
</div>
</div>
</body>
</html>
function Evaluation($id, $value, $input, $exercise_id, $operatorData)
{
$m = new EvalMath();
$xml = simplexml_load_file($exercise_id) or die("Error: Cannot create object");
$count_options = $xml->input[$id]->count();
for ($i = 0; $i < $count_options; $i++) {
$operator = $xml->input[$id]->option[$i]->operator;
$equation = trim($xml->input[$id]->option[$i]->equation);
$data = explode(" ", $equation);
$equation = "";
$operatorDT = "";
if ($operator == 'IF') {
$trimmed = intval(ltrim($data[0], "v"));
$equation .= $input[$trimmed];
switch ($data[1]) {
case "==":
if ($equation == $data[2]) {
return $xml->input[$id]->option[$i]->result;
$i = $count_options;
}
break;
case "!=":
if ($equation != $data[2]) {
return $xml->input[$id]->option[$i]->result;
$i = $count_options;
}
break;
case "GT":
if ($equation > $data[2]) {
return $xml->input[$id]->option[$i]->result;
$i = $count_options;
}
break;
case "GE":
if ($equation >= $data[2]) {
return $xml->input[$id]->option[$i]->result;
$i = $count_options;
}
break;
case "LT":
if ($equation < $data[2]) {
return $xml->input[$id]->option[$i]->result;
$i = $count_options;
}
break;
case "LE":
if ($equation <= $data[2]) {
return $xml->input[$id]->option[$i]->result;
$i = $count_options;
}
break;
}
// SWITCH
} else {
foreach ($data as $element) {
if (is_numeric($element)) {
$equation .= $element;
} else {
if ($element[0] == 'o') {
$operatorDT = ltrim($element, "o");
} elseif (strpos($element, 'v') === False) {
$equation .= $element;
} else {
$trimmed = intval(ltrim($element, "v"));
$equation .= $input[$trimmed];
}
}
}
// return $equation[3];
// $equation = "mcm(2,4)";
if (strstr($equation, "mcm")) {
$valor = explode(",", substr($equation, 3));
$equation_result = mcm(intval($valor[0]), intval($valor[1]));
} else {
$equation_result = $m->evaluate($equation);
}
if ($operatorDT == "") {
$operatorData = "";
}
// return strval($equation_result);
switch ($operator) {
case "==":
if ($equation_result == $value && $operatorDT == $operatorData) {
return $xml->input[$id]->option[$i]->result;
$i = $count_options;
}
break;
case "!=":
if ($equation_result != $value && $operatorDT == $operatorData) {
return $xml->input[$id]->option[$i]->result;
$i = $count_options;
}
break;
case "GT":
if ($equation_result > $value && $operatorDT == $operatorData) {
return $xml->input[$id]->option[$i]->result;
$i = $count_options;
}
break;
case "GE":
if ($equation_result >= $value && $operatorDT == $operatorData) {
return $xml->input[$id]->option[$i]->result;
$i = $count_options;
}
break;
case "LT":
if ($equation_result < $value && $operatorDT == $operatorData) {
return $xml->input[$id]->option[$i]->result;
$i = $count_options;
}
break;
case "LE":
if ($equation_result <= $value && $operatorDT == $operatorData) {
return $xml->input[$id]->option[$i]->result;
$i = $count_options;
}
break;
}
// SWITCH
}
// else IF
}
// option's LOOP
}
return $factors;
}
function isPrime($number)
{
$c = 2;
$ceil = $number / 2;
while ($c < $ceil) {
if ($number % $c == 0) {
return false;
}
$c++;
}
return true;
}
#####################################################################
#####################################################################
// Algorithm
$numbers = array();
for ($i = 2; $i <= 20; $i++) {
$numbers[] = $i;
}
$resultFactors = array();
foreach ($numbers as $number) {
$primeFactors = factorize($number);
$resultFactors = mcm($resultFactors, $primeFactors);
}
$result = 1;
foreach ($resultFactors as $factor => $exponent) {
$result *= pow($factor, $exponent);
}
echo "{$result}\n";
function Evaluation($id, $value, $input, $exercise_id, $operatorData, $answer)
{
$m = new EvalMath();
$xml = simplexml_load_file($exercise_id) or die("Error: Cannot create object");
// $ops = array("==", "!=", "GE", "LE", "GT", "LT");
$count_options = $xml->input[$id]->count();
for ($i = 0; $i < $count_options; $i++) {
$operator = $xml->input[$id]->option[$i]->operator;
$equation = trim($xml->input[$id]->option[$i]->equation);
$data = explode(" ", $equation);
$operatorDT = "";
if ($operator == 'IF') {
if (strstr($equation, "and")) {
$content = explode("and", $equation);
$data1 = explode(" ", $content[0]);
$data2 = explode(" ", $content[1]);
if (evalStatement($data1, $input, $answer) and evalStatement($data2, $input, $answer)) {
return $xml->input[$id]->option[$i]->result;
}
} elseif (strstr($equation, "or")) {
$content = explode("or", $equation);
$data1 = explode(" ", $content[0]);
$data2 = explode(" ", $content[1]);
if (evalStatement($data1, $input, $answer) or evalStatement($data2, $input, $answer)) {
return $xml->input[$id]->option[$i]->result;
}
} else {
if (evalStatement($data, $input, $answer)) {
return $xml->input[$id]->option[$i]->result;
}
}
} else {
$equation = "";
foreach ($data as $element) {
if (is_numeric($element)) {
$equation .= $element;
} else {
if ($element[0] == 'o') {
$operatorDT = ltrim($element, "o");
} elseif ($element[0] == 'v') {
$trimmed = intval(ltrim($element, "v"));
$equation .= $input[$trimmed];
} elseif ($element[0] == 'a') {
$trimmed = intval(ltrim($element, "a"));
$equation .= $answer[$trimmed - 1];
} else {
$equation .= $element;
}
}
}
if (strstr($equation, "mcm")) {
$valor = explode(",", substr($equation, 3));
$equation_result = mcm(intval($valor[0]), intval($valor[1]));
} elseif (strstr($equation, "smn")) {
$valor = explode(",", substr($equation, 3));
$equation_result = smn(intval($valor[0]), intval($valor[1]));
} elseif (strstr($equation, "smd")) {
$valor = explode(",", substr($equation, 3));
$equation_result = smd(intval($valor[0]), intval($valor[1]));
} elseif (strstr($equation, "cod")) {
$valor = explode(",", substr($equation, 3));
$equation_result = cod(intval($valor[0]), intval($valor[1]));
} elseif (strstr($equation, "red")) {
$valor = explode(",", substr($equation, 3));
$equation_result = red(intval($valor[0]), intval($valor[1]));
} elseif (strstr($equation, "txt")) {
$valor = explode(",", substr($equation, 3));
$equation_result = txt($valor[0], $valor[1]);
} else {
$equation_result = $m->evaluate($equation);
}
if ($operatorDT == "") {
$operatorData = "";
}
// return strval($equation_result);
switch ($operator) {
case "==":
if ($equation_result == $value && $operatorDT == $operatorData) {
return $xml->input[$id]->option[$i]->result;
$i = $count_options;
}
break;
case "!=":
if ($equation_result != $value && $operatorDT == $operatorData) {
return $xml->input[$id]->option[$i]->result;
$i = $count_options;
}
break;
case "GT":
if ($equation_result > $value && $operatorDT == $operatorData) {
return $xml->input[$id]->option[$i]->result;
$i = $count_options;
}
break;
case "GE":
if ($equation_result >= $value && $operatorDT == $operatorData) {
return $xml->input[$id]->option[$i]->result;
$i = $count_options;
}
break;
case "LT":
if ($equation_result < $value && $operatorDT == $operatorData) {
return $xml->input[$id]->option[$i]->result;
$i = $count_options;
}
break;
case "LE":
if ($equation_result <= $value && $operatorDT == $operatorData) {
return $xml->input[$id]->option[$i]->result;
$i = $count_options;
}
break;
}
// SWITCH
}
// else IF
}
// option's LOOP
}
function Evaluation($id, $value, $input, $exercise_id, $operatorData, $answer)
{
$m = new EvalMath();
$xml = simplexml_load_file($exercise_id) or die("Error: Cannot create object");
$count_options = $xml->input[$id]->count();
for ($i = 0; $i < $count_options; $i++) {
$operator = $xml->input[$id]->option[$i]->operator;
$equation = trim($xml->input[$id]->option[$i]->equation);
$data = explode(" ", $equation);
$equation = "";
$operatorDT = "";
if ($operator == 'IF') {
// retrieve elements from de conditional
$cont = 0;
foreach ($data as $element) {
if ($element[0] == 'v') {
$trimmed = intval(ltrim($element, "v"));
$value[$cont] = strval($input[$trimmed]);
} elseif ($element[0] == 'a') {
$trimmed = intval(ltrim($element, "a"));
$value[$cont] = strval($answer[$trimmed - 1]);
} else {
$value[$cont] = strval($element);
}
//if($value[$cont] == "==")
// return "ccc";
$cont++;
}
// evaluate one or two conditional statements
if ($cont <= 3) {
if (condicional($value[0], $data[1], $value[2])) {
return $xml->input[$id]->option[$i]->result;
$i = $count_options;
}
} else {
if ($data[3] == "and") {
if (condicional($value[0], $data[1], $value[2]) and condicional($value[4], $data[5], $value[6])) {
return $xml->input[$id]->option[$i]->result;
$i = $count_options;
}
} else {
if ($data[3] == "or") {
if (condicional($value[0], $data[1], $value[2]) or condicional($value[4], $data[5], $value[6])) {
return $xml->input[$id]->option[$i]->result;
$i = $count_options;
}
}
}
}
/*
switch($data[1])
{
case "==":
if($equation == $data[2])
{return $xml->input[$id]->option[$i]->result;
$i=$count_options;
}
break;
case "!=": if($equation != $data[2])
{return $xml->input[$id]->option[$i]->result;
$i=$count_options;
}
break;
case "GT": if($equation > $data[2])
{return $xml->input[$id]->option[$i]->result;
$i=$count_options;
}
break;
case "GE": if($equation >= $data[2])
{return $xml->input[$id]->option[$i]->result;
$i=$count_options;
}
break;
case "LT": if($equation < $data[2])
{return $xml->input[$id]->option[$i]->result;
$i=$count_options;
}
break;
case "LE": if($equation <= $data[2])
{return $xml->input[$id]->option[$i]->result;
$i=$count_options;
}
break;
} // SWITCH
*/
} else {
foreach ($data as $element) {
if (is_numeric($element)) {
$equation .= $element;
} else {
if ($element[0] == 'o') {
$operatorDT = ltrim($element, "o");
} elseif ($element[0] == 'v') {
$trimmed = intval(ltrim($element, "v"));
$equation .= $input[$trimmed];
} elseif ($element[0] == 'a') {
$trimmed = intval(ltrim($element, "a"));
$equation .= $answer[$trimmed - 1];
} else {
$equation .= $element;
}
/*
elseif (strpos($element,'v') === False)
{
$equation .= $element;
}
else
{
$trimmed = intval(ltrim($element, "v"));
$equation .= $input[$trimmed];
}
*/
}
}
// return $equation[3];
// $equation = "mcm(2,4)";
if (strstr($equation, "mcm")) {
$valor = explode(",", substr($equation, 3));
$equation_result = mcm(intval($valor[0]), intval($valor[1]));
} elseif (strstr($equation, "smn")) {
$valor = explode(",", substr($equation, 3));
$equation_result = smn(intval($valor[0]), intval($valor[1]));
} elseif (strstr($equation, "smd")) {
$valor = explode(",", substr($equation, 3));
$equation_result = smd(intval($valor[0]), intval($valor[1]));
} elseif (strstr($equation, "cod")) {
$valor = explode(",", substr($equation, 3));
$equation_result = cod(intval($valor[0]), intval($valor[1]));
} elseif (strstr($equation, "red")) {
$valor = explode(",", substr($equation, 3));
$equation_result = red(intval($valor[0]), intval($valor[1]));
} elseif (strstr($equation, "txt")) {
$valor = explode(",", substr($equation, 3));
$equation_result = txt($valor[0], $valor[1]);
} else {
$equation_result = $m->evaluate($equation);
}
if ($operatorDT == "") {
$operatorData = "";
}
// return strval($equation_result);
switch ($operator) {
case "==":
if ($equation_result == $value && $operatorDT == $operatorData) {
return $xml->input[$id]->option[$i]->result;
$i = $count_options;
}
break;
case "!=":
if ($equation_result != $value && $operatorDT == $operatorData) {
return $xml->input[$id]->option[$i]->result;
$i = $count_options;
}
break;
case "GT":
if ($equation_result > $value && $operatorDT == $operatorData) {
return $xml->input[$id]->option[$i]->result;
$i = $count_options;
}
break;
case "GE":
if ($equation_result >= $value && $operatorDT == $operatorData) {
return $xml->input[$id]->option[$i]->result;
$i = $count_options;
}
break;
case "LT":
if ($equation_result < $value && $operatorDT == $operatorData) {
return $xml->input[$id]->option[$i]->result;
$i = $count_options;
}
break;
case "LE":
if ($equation_result <= $value && $operatorDT == $operatorData) {
return $xml->input[$id]->option[$i]->result;
$i = $count_options;
}
break;
}
// SWITCH
}
// else IF
}
// option's LOOP
}
