rawurlencode()
rawurlencode() — URL-encode according to RFC 3986.
Built-in function of PHP 8.5. The manual lists it as available in PHP 4, PHP 5, PHP 7, PHP 8. This page is the reference card: signature, parameters and return value, plus the changelog and the example the manual provides.
Signature
rawurlencode(string $string): string
Parameters
| Parameter | Type | What it takes |
|---|---|---|
| $string | string | The URL to be encoded. |
Return value
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).
Example
A runnable snippet:
echo '<a href="ftp://user:', rawurlencode('foo @+%/'), '@ftp.example.com/x.txt">';
Output:
<a href="ftp://user:foo%20%40%2B%25%2F@ftp.example.com/x.txt">
See also
rawurldecode(), urldecode(), urlencode()
All PHP 8.5 built-in functions
Reference card built from the PHP manual page rawurlencode() (PHP documentation, CC BY 3.0). The page is generated from the manual, so the wording of the parameter and return value text follows php.net.