This PHP library lets you easily calculate the reading time for a piece of text.
You can install PHP Reading Time using Composer, as follows.
composer require divineomega/php-reading-time
The following examples show how you can use PHP Reading Time to calculate the reading time in minutes or seconds. You can also set a reading speed in words per minute (default: 200 wpm).
$readingTime = new ReadingTime($text);
$readingTime->seconds();
$readingTime->minutes();
$readingTime->setWordsPerMinute(240)->minutes();