URL Encode (Percent Encode) All Characters in a String

$s: abcdeあいうえお
strlen($s): 20
urlencode($s): abcde%E3%81%82%E3%81%84%E3%81%86%E3%81%88%E3%81%8A
rawurlencode($s): abcde%E3%81%82%E3%81%84%E3%81%86%E3%81%88%E3%81%8A
urlEncodeAll($s): %61%62%63%64%65%E3%81%82%E3%81%84%E3%81%86%E3%81%88%E3%81%8A
strlen(urlEncodeAll($s)): 60

URL Encode (Percent Encode)

* Convert the character string into a sequence of bytes using the UTF-8 encoding
* Convert each byte that is not an ASCII letter or digit to %HH, where HH is the hexadecimal value of the byte

"abcdeあいうえお" is 20 ( = 1x5 + 3x5 ) bytes in UTF-8.
If you `urlencode` or `rawurlencode` "abcdeあいうえお", then
"abcde" will not be percent-encoded.

Use "urlEncodeAll" to percent-encode all charcters.
The total bytes will be 60 ( = 30 x 3 )