original_string: public function indexOf($string, $offset = 0) {
  		$offset = $this->prepareOffset($offset);
  
  		if ($string == '') {
  			return $offset;
  		}
  
  		return mb_strpos($this->string, (string) $string, $offset, $this->encoding);
  	}
code: public function indexOf($string, $offset = 0) {
  		$offset = $this->prepareOffset($offset);
  
  		if ($string == '') {
  			return $offset;
  		}
  
  		return mb_strpos($this->string, (string) $string, $offset, $this->encoding);
  	}
code_tokens: public function indexOf ( $ string , $ offset = 0 ) { $ offset = $ this -> prepareOffset ( $ offset ) ; if ( $ string == '' ) { return $ offset ; } return mb_strpos ( $ this -> string , ( string ) $ string , $ offset , $ this -> encoding ) ; }
docstring: Returns the index of a given string, starting at the optional zero-related offset
  
  @param string $string
  @param int $offset zero-related offset
  @return int|boolean int for the index or false if the given string doesn't occur
docstring_tokens: Returns the index of a given string starting at the optional zero - related offset