function find_closest($question, $currentanswer, $correct_response = false, $hintadded = false)
{
global $CFG;
// JR dec 2011 moved get alternate answers to new function
$alternateanswers = get_alternateanswers($question);
$alternatecorrectanswers = array();
// JR jan 2012 changed contents of alternateanswers
if (isset($question->id)) {
$qid = $question->id;
if (!isset($SESSION->qtype_regexp_question->alternatecorrectanswers[$qid])) {
foreach ($alternateanswers as $key => $alternateanswer) {
foreach ($alternateanswer['answers'] as $alternate) {
$alternatecorrectanswers[] = $alternate;
}
}
$SESSION->qtype_regexp_question->alternatecorrectanswers[$qid] = $alternatecorrectanswers;
}
}
// testing ignorecase
$ignorecase = 'i';
if ($question->usecase) {
$ignorecase = '';
}
// only use ishint value if hint button has been clicked
$ishint = $question->usehint * $hintadded;
// find closest answer matching student response
if (!isset($currentanswer) && !$correct_response) {
return null;
}
if ($correct_response) {
return $alternatecorrectanswers;
}
$closest = get_closest($currentanswer, $alternatecorrectanswers, $ignorecase, $ishint);
if ($closest[2] == 'complete') {
return $closest;
}
// give first character of firstcorrectanswer to student (if option usehint for this question)
// TODO JR maybe not?
/*if ($closest[0] == '' && ($question->usehint == true) && $closest[2] == 'nil' ) {
$closest[0] = $textlib->substr($firstcorrectanswer, 0, 1);
}*/
echo "<bR>mwiki while loop: {$ttime}<br>";
echo "iterations: {$i}<br>";
echo "<br>--------mediawiki()--------<br>";
if ($i > 4) {
// =>redirected more than 4 times
return false;
} else {
if (!isset($arrXml['query']) || isset($arrXml['query']['pages']['page']['@attributes']['missing']) || $arrXml['query']['pages']['page'] == '') {
return false;
} else {
return $arrXml['query']['pages']['page'];
}
}
}
echo "<h1>wikihow:" . $req . "</h1>";
$e = get_closest($spell_checked);
$ret = wikihow($e);
$content = $ret['revisions']['rev'];
$out = get_content($content);
//file_put_contents("out.txt",$out);
// echo "<br>------------<br>";
//echo $out;
if ($out) {
$current_file = "/how/{$global_id}";
$files = DATA_PATH . "/how/{$global_id}";
@unlink($files);
file_put_contents($files, $out);
$wikihow_return = $out;
echo "<br>length here: " . strlen($wikihow_return) . '<br>';
} else {
$wikihow_return = '';
