gistfile1.php

<?php

namespace Utils;

class Strings
{
    public static function substringsCount($string, $dots)
    {
        str_replace($dots, '#\#\#', strip_tags($string), $val);
        return $val;
    }

    public static function substrings($string, $dots)
    {
        $string = strip_tags($string);

        foreach($dots as $dot) {
            $string = str_replace($dot, $dot . '#\#\#', $string);
        }

        $string = explode('#\#\#', $string);
        $string = array_filter($string);
        $string = array_map('trim', $string);
        return $string;
    }


$str = "Also new in this release: Google is now your default search engine. To change the active search engine, click the down arrow next to the search engine's icon, and select a new search engine.";

$dots = array('.', '!', '?', ';', ':', '...');

echo $str . '<br>';

echo Strings::substringsCount($str, $dots);
var_dump(Strings::substrings($str, $dots));
}