转义字符 - \ xFF

Question

What do we call these strings and how they can be decoded? as I found these are UTF-8 multi-byte characters and somewhere I noticed they are UTF-32

\x4c\x4f\x42\x41\x4c\x53

Answer 1

The following sequence of bytes \x4c\x4f\x42\x41\x4c\x53 is an ASCII safe sequence. So you can either treat it as a single byte encoding string, or UTF-8.

$s = "\x4c\x4f\x42\x41\x4c\x53";

echo $s; // outputs LOBALS