function is_acceptable($input)
{
foreach ($this->get_acceptable() as $value) {
if (!$score and compare_strings($input, $value, $flags)) {
return TRUE;
}
}
return FALSE;
}
if (!$answer) {
exit("no answer supplied");
}
if (array_key_exists("correct", $values) and is_array($values["correct"]) and array_key_exists("expr", $values) and is_string($values["expr"])) {
$value = compare_syntax3($values["expr"], $answer, nano_dfdict(), true);
if ($value === null) {
echo "false";
} else {
echo "true";
}
} else {
if (array_key_exists("correct", $values) and array_key_exists("acceptable", $values) and is_array($values["correct"]) and is_array($values["acceptable"])) {
$also = $values["correct"];
$correct = $values["correct"];
$values = $values["acceptable"];
} else {
$correct = $also = $values;
}
$score = FALSE;
foreach ($values as $value) {
if (!$score and compare_strings($answer, $value, $flags)) {
$score = TRUE;
break;
}
}
if ($score) {
echo "true";
} else {
echo "false";
}
}
if (array_key_exists("correct", $values) and array_key_exists("acceptable", $values) and is_array($values["correct"]) and is_array($values["acceptable"])) {
$also = $values["correct"];
$correct = $values["correct"];
$values = $values["acceptable"];
} else {
$correct = $also = $values;
}
$score = FALSE;
#error_log($answer2);
foreach ($values as $value) {
#error_log($_val);
if (!$score and compare_strings($answer, $value, $flags)) {
$score = TRUE;
$_also = $also;
foreach ($_also as $key => $v2) {
if (compare_strings($value, $v2, $flags)) {
unset($also[$key]);
}
}
break;
}
}
}
$result[$name] = array_merge([$score, $score ? $value : $answer], array_values($score ? $also : $correct));
$out_of += 1;
if ($score) {
$subscore += 1;
}
}
$result["subscore"] = $subscore;
$result["out_of"] = $out_of;
