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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(str_word_count(strip_tags($text)) / 200); | |
33 | } | |
34 | } |