original_string: public function deletePrefix($prefix)
      {
          if ($this->startWith($prefix) === true) {
              return substr($this->str, strlen($prefix));
          }
  
          return $this->str;
      }
code: public function deletePrefix($prefix)
      {
          if ($this->startWith($prefix) === true) {
              return substr($this->str, strlen($prefix));
          }
  
          return $this->str;
      }
code_tokens: public function deletePrefix ( $ prefix ) { if ( $ this -> startWith ( $ prefix ) === true ) { return substr ( $ this -> str , strlen ( $ prefix ) ) ; } return $ this -> str ; }
docstring: Deletes a prefix of the string.
  
  @param string $prefix The prefix
  
  @return string The string without prefix
docstring_tokens: Deletes a prefix of the string .