What does this code say/mean

[DaddyMeme]

Doing a project. Know nothing about PHP.

I was sent this code, can anyone tell me what it says/means?

1. $word = $_GET['w'];
2. $hex ='';
3.  for ($i=0; $i<strlen($word); $i++){
4.         $nw = ord($word[$i]);
5.         $hexCode = dechex($nw);
6.         $hex .= '0'.$hexCode;
7.         }
8.      
9.         for ($i=0;$i<strlen($hex);$i++){
10.         $hexar =strval($hex);
11.         $hexar = str_split($hexar, 1);
12.      
13.         }
14.         for ($i=0;$i<strlen($hex);$i++){
15.          $s = implode("s4",$hexar);
16.          $f = "b02lasakso2io89asnfa";
17.         $a = str_rot13("abcdefghijklmnopqrstuvwxyz1234567890"). strtoupper(str_rot13("abcdefghijklmnopqrstuvwxyz1234567890"));
18.          $s = substr_replace ($s, $f , $i,$i);
19.         }
20.         return $s;
21.         }

Edited May 11, 2017 by cyberRobot
topic title changed (was Help?)

[benanamen]

It looks to be a sorry excuse for "encryption". Why would someone send you code that you dont know what it is and know nothing about Php?

[Jacques1]

It's actually just gibberish. The author clearly doesn't understand PHP either.

 

Whatever they've tried to do, they didn't even manage to implement a simple loop.

 

Next time, choose a meaningful title. “Help” tells us exactly nothing, because everybody here wants help.

Edited May 11, 2017 by Jacques1

[requinix]

I'm inclined to think it's malicious - I wouldn't trust the rest of the code you received, the person who gave it to you, or even the community you were in.

 

It's so horribly written that I'm not sure it hasn't underflowed into clever obfuscation. It is functional, strictly speaking, but clearly depends on some other code which hasn't been posted.

[DaddyMeme]

thanks