'plus',2=>'minus',3=>'divided by',4=>'times');
function Form($html){
$operator_key = array_rand($this->operators);
$operator = $this->operators[$operator_key];
$asm_1 = rand(1,10);
$asm_3 = rand(1,10);
if ($operator_key == 3) $asm_1 = $asm_1 * $asm_3;
$inputs = array();
$inputs[] = ' ';
$inputs[] = ' ';
$inputs[] = ' ';
shuffle($inputs);
ob_start();
echo implode('',$inputs);
echo '';
echo $asm_1;
echo ' ';
echo gpOutput::GetAddonText($operator);
echo ' ';
echo $asm_3;
echo ' ';
echo gpOutput::GetAddonText('equals');
echo ' ';
echo '';
$html .= ob_get_clean();
return $html;
}
function Check($passed){
$message = gpOutput::SelectText('Sorry, your answer to the verification challenge was incorrect. Please try again.');
if( empty($_POST['asm_1']) || empty($_POST['asm_2']) || empty($_POST['asm_3']) ){
message($message.' (1)');
return false;
}
$operator_key = $_POST['asm_2'];
if( !isset($this->operators[$operator_key]) ){
message($message.' (2)');
return false;
}
switch($operator_key){
case 1:
$result = $_POST['asm_1'] + $_POST['asm_3'];
break;
case 2:
$result = $_POST['asm_1'] - $_POST['asm_3'];
break;
case 3:
$result = $_POST['asm_1'] / $_POST['asm_3'];
break;
case 4:
$result = $_POST['asm_1'] * $_POST['asm_3'];
break;
}
$compare = $_POST['asm_4'];
//message('result: '.$result.' vs submitted: '.$compare);
if( $compare != $result ){
message($message.' (3)');
return false;
}
//message('passed');
return $passed;
}
}