I came across a php code that has something like this

$a = "s\697\x72\x69xo\x89";
$b = "\x53\x99rlen";

And so on. If you paste that code into any php IDE, you will find out that it is coded. I would like to know how to decode it or what type of encoding function was use or the real meaning of those help. I need help before Sunday. It is urgent. I need to submit the script before Monday 8:00a.m Thank you

Not clear, well bros, you are on your own here o.

Post the complete code block, at least. Let's see how the variables are used in the code.

This looks like a part of a salted hash.

that is not a php code at all eeee!!!!!

It looks like a simple regular expression or a string, other than that, there is nothing coded about that code; if it is a php code.