src/Wallabag/CoreBundle/Tools/Utils.php

   1 <?php
   2
   3 namespace Wallabag\CoreBundle\Tools;
   4
   5 class Utils
   6 {
   7     /**
   8      * Generate a token used for RSS.
   9      *
  10      * @param int $length Length of the token
  11      *
  12      * @return string
  13      */
  14     public static function generateToken($length = 15)
  15     {
  16         $token = substr(base64_encode(random_bytes($length)), 0, $length);
  17
  18         // remove character which can broken the url
  19         return str_replace(['+', '/'], '', $token);
  20     }
  21
  22     /**
  23      * For a given text, we calculate reading time for an article
  24      * based on 200 words per minute.
  25      *
  26      * @param $text
  27      *
  28      * @return float
  29      */
  30     public static function getReadingTime($text)
  31     {
  32         return floor(\count(preg_split('~([^\p{L}\p{N}\']+|\p{Han}|\p{Hiragana}|\p{Katakana}|\p{Hangul})~u', strip_tags($text))) / 200);
  33     }
  34 }