String Helpers

• extract_content()
  * fetching description *
• filter_name()
  * fetching description *
• filter_str()
  * fetching description *
• get_last_part()
  * fetching description *
• make_rand_str()
  * fetching description *
• nice_price()
  * fetching description *
• out()
  * fetching description *
• remove_substr_between()
  * fetching description *
• replace_html_code()
  * fetching description *
• replace_html_tags()
  * fetching description *
• truncate_str()
  * fetching description *
• truncate_words()
  * fetching description *
• url_title()
  * fetching description *