## 例

`

     string urlencode ( string $str )

`

## 説明

This function is convenient when encoding a string to be used in a query part of a URL, as a convenient way to pass variables to the next page.

## 戻り値

Returns a string in which all non-alphanumeric characters except -_. have been replaced with a percent () sign followed by two hex digits and spaces encoded as plus (+) signs. It is encoded the same way that the posted data from a WWW form is encoded, that is the same way as in application/x-www-form-urlencoded media type. This differs from the » RFC 3986 encoding (see rawurlencode()) in that for historical reasons, spaces are encoded as plus (+) signs.