$_POST['ftype'] = $checkedExt;
if (isset($_GET['ftype']) && !empty($_GET['ftype']) && in_array($_GET['ftype'], $fileExts)) {
$fileExtQualities = array_keys($fileExts, $_GET['ftype']);
$_POST['ftype'] = $fileExtQualities[0];
if (isset($_GET['quality']) && !empty($_GET['quality'])) {
$fileExtQuality = trim($_GET['quality']);
$fileExt = $_POST['ftype'];
array_walk($ftypes, function ($ftype, $key) use(&$fileExt, $fileExtQualities, $fileExtQuality) {
if (in_array($key, $fileExtQualities) && isset($ftype['quality']) && $fileExtQuality == $ftype['quality']) {
$fileExt = $key;
}
});
$_POST['ftype'] = $fileExt;
}
}
$_POST['formToken'] = $converter->GetUniqueID();
}
// On form submission, check for valid submission and video URL
$validFormSubmission = isset($_POST['submitForm']) && (isset($_POST['formToken']) && $_POST['formToken'] == $converter->GetUniqueID() || isset($_POST['bookmarklet']));
$validVideoUrl = false;
$vidURL = trim($_POST['videoURL']);
if ($validFormSubmission) {
$moreOptions = array();
if (!empty($_POST['volume'])) {
$moreOptions['volume'] = trim($_POST['volume']);
}
$validVideoUrl = $converter->ValidateConversionForm($vidURL, $_POST['ftype'], true, $moreOptions);
if ($validVideoUrl) {
$vidInfo = $converter->GetVidInfo();
$extractor = $converter->GetExtractor();
$currentVideoId = method_exists($extractor, 'GetPageUrlSuffix') ? $extractor->GetPageUrlSuffix() : $vidInfo['id'];
