JBZoo\Utils\Str::truncateSafe PHP 메소드

    public static function truncateSafe($string, $length, $append = '...')
    {
        $result = self::sub($string, 0, $length);
        $lastSpace = self::rpos($result, ' ');
        if ($lastSpace !== false && $string != $result) {
            $result = self::sub($result, 0, $lastSpace);
        }
        if ($result != $string) {
            $result .= $append;
        }
        return $result;
    }

 public function testTruncateSafe()
 {
     is('The quick brown fox...', Str::truncateSafe('The quick brown fox jumps over the lazy dog', 24));
     is('The quick brown fox jumps over the lazy dog', Str::truncateSafe('The quick brown fox jumps over the lazy dog', 55));
     is('Th...', Str::truncateSafe('The quick brown fox jumps over the lazy dog', 2));
     is('The...', Str::truncateSafe('The quick brown fox jumps over the lazy dog', 3));
     is('The...', Str::truncateSafe('The quick brown fox jumps over the lazy dog', 7));
 }