URL-encodes string
Syntax
urlencode ( string $str ) : string
Parameters
str
The string to be encoded.
Return
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.
Examples
1
<? $str = "-_.0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"; $return = urlencode($str); echo $return; ?>
-_.0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz
2
<?
$str = "~!@#$%^&*()+={[}]|\:;\"'<,>?/";
$return = urlencode($str);
echo $return;
?>
%7E%21%40%23%24%25%5E%26%2A%28%29%2B%3D%7B%5B%7D%5D%7C%5C%3A%3B%22%27%3C%2C%3E%3F%2F
3
<? $str = " "; $return = urlencode($str); echo $return; ?>
+
4
<? $str = "encode non-alphanumeric"; $return = urlencode($str); echo '<a href="https://domain.com/path?var=' . $return . '">' . $str . '</a>'; ?>
<a href="https://domain.com/path?var=encode+non-alphanumeric">encode non-alphanumeric</a>
