public static function isFile($fileName, $supportedExtensions = array('zip', 'doc', 'docx', 'pdf', 'xls', 'xlsx', 'jpg', 'jpeg', 'png', 'bmp', 'rar', '7z'), $maxFileSize = false)
{
if (isset($_FILES[$fileName]) && is_uploaded_file($_FILES[$fileName]["tmp_name"]) && $_FILES[$fileName]["error"] == 0) {
$fileNameAray = explode('.', $_FILES[$fileName]['name']);
end($fileNameAray);
$extension = strtolower(current($fileNameAray));
if (is_array($supportedExtensions) && !in_array($extension, $supportedExtensions)) {
self::$lastError = erTranslationClassLhTranslation::getInstance()->getTranslation('chat/startchat', 'Invalid file extension');
return false;
}
if (is_string($supportedExtensions)) {
if (!preg_match($supportedExtensions, $_FILES[$fileName]['name'])) {
self::$lastError = erTranslationClassLhTranslation::getInstance()->getTranslation('chat/startchat', 'Invalid file extension!');
return false;
}
}
if ($maxFileSize !== false && $maxFileSize > 0 && $_FILES[$fileName]['size'] > $maxFileSize) {
self::$lastError = erTranslationClassLhTranslation::getInstance()->getTranslation('chat/startchat', 'To big file!');
return false;
}
return true;
}
return false;
}
