function get_string_between($string, $start = "", $end = ""){
  if (strpos($string, $start)) { // required if $start doesnt exist in $string
      $startCharCount = strpos($string, $start) + strlen($start);
      $firstSubStr = substr($string, $startCharCount, strlen($string));
      $endCharCount = strpos($firstSubStr, $end);
      if ($endCharCount == 0) {
          $endCharCount = strlen($firstSubStr);
      }
      return substr($firstSubStr, 0, $endCharCount);
  } else {
      return '';
  }
}

//Pos psaxno gia ta New cases sto pdf
//new_cases
$new_cases = trim(get_string_between($fulltext, 'νόσου είναι', ', εκ'));
if($new_cases == ""){
    $new_cases = trim(get_string_between($fulltext, 'κρούσματατης νόσου είναι', '.'));
    if($new_cases == ""){
        $new_cases = trim(get_string_between($fulltext, 'νόσου αυξήθηκαν κατά', '.'));
        if($new_cases == ""){
            $new_cases = trim(get_string_between($fulltext, 'κρούσματατηςνόσουείναι', ','));
            if($new_cases == ""){
                $new_cases = trim(get_string_between($fulltext, 'κρούσματατηςνόσουείναι', '.'));
                if($new_cases == ""){
                    $new_cases = trim(get_string_between($fulltext, 'καταγράφηκαν τις τελευταίες 24 ώρες είναι', ','));
                }
            }
        }
    }
}