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# urlencode

urlencode -- URL-encodes string

## Description

`string urlencode`(string str);

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 RFC1738 encoding (see rawurlencode()) in that for historical reasons, spaces are encoded as plus (+) signs. This function is convenient when encoding a string to be used in a query part of an URL, as a convenient way to pass variables to the next page:

Example 1. Urlencode() example
      1
      2 echo '<A HREF="mycgi?foo=', urlencode ($userinput), '">';
      3

See also urldecode().

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