URL-encode according to RFC 3986
URL Functions
PHP Manual


(PHP 4, PHP 5)

rawurlencodeURL-encode according to RFC 3986


string rawurlencode ( string $str )

Encodes the given string according to » RFC 3986.



The URL to be encoded.

Return Values

Returns a string in which all non-alphanumeric characters except -_.~ have been replaced with a percent (%) sign followed by two hex digits. This is the encoding described in » RFC 3986 for protecting literal characters from being interpreted as special URL delimiters, and for protecting URLs from being mangled by transmission media with character conversions (like some email systems).


Prior to PHP 5.3.0, rawurlencode encoded tildes (~) as per » RFC 1738.


Version Description
5.3.4 Tilde characters are no longer encoded when rawurlencode() is used with EBCDIC strings.
5.3.0 Now conforms to » RFC 3986.


Example #1 including a password in an FTP URL

echo '<a href="?ftp://user:'rawurlencode('foo @+%/'),

The above example will output:

<a href="ftp://user:foo%20%40%2B%25%2F@ftp.example.com/x.txt">

Or, if you pass information in a PATH_INFO component of the URL:

Example #2 rawurlencode() example 2

echo '<a href="?http://example.com/department_list_script/',
rawurlencode('sales and marketing/Miami'), '">';

The above example will output:

<a href="http://example.com/department_list_script/sales%20and%20marketing%2FMiami">

See Also

URL Functions
PHP Manual