original_string: public static function contains($string = false, $substring = false) {
  
          if ($substring && $substring && strpos($string, $substring) !== false) {
  
              return true;
          }
  
          return false;
      }
code: public static function contains($string = false, $substring = false) {
  
          if ($substring && $substring && strpos($string, $substring) !== false) {
  
              return true;
          }
  
          return false;
      }
code_tokens: public static function contains ( $ string = false , $ substring = false ) { if ( $ substring && $ substring && strpos ( $ string , $ substring ) !== false ) { return true ; } return false ; }
docstring: Check if the given string contains a specific substring.
  @param string full string
  @param string substring
  @return boolean
docstring_tokens: Check if the given string contains a specific substring .