(PHP 4, PHP 5)
rawurlencode — URL-encode according to RFC 1738
The URL to be encoded.
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 1738 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 #1 including a password in an FTP URL
<?php
echo '<a href="ftp://user:', rawurlencode('foo @+%/'),
'@ftp.example.com/x.txt">';
?>
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
<?php
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">