Question

<?php
$file = 'file.dat';
$file_contents = file_get_contents($file);
for ($i = 0x000481; $i <= 0x00048B; $i++) {
print $i;
}
?>

I am creating an online file analyzer but I have a small problem. It outputs (which is the actual position the hex is in)

1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163

when it should be

44 72 48 79 64 72 61 6C 69 73 6B

which his hex for DrHydralisk (me). Can anyone help me output the latter or just have it strait output ASCII (but hex is fine, I can just convert it)?

edit

Here is an image of what I am trying to do that I think will help.

https://i.stack.imgur.com/TORd3.png

Here is the file I am trying to read, its a Starcraft replay (file.SC2Replay). Just search for DrHydralisk in a hex editor and that is where I am trying to read from.

http://www.mediafire.com/?6w8wi35q3o6ix8q

Answer 1

It should be (if clear text is in the file):

for( $i=0x481; $i<0x48D; $i++ ) {
   printf("%X ", ord($file_contents[$i]));
}

Note the loop boundaries: 0x481 .. 0x48D

Result:

44 72 20 48 79 64 72 61 6C 69 73 6B 

If the file contains hexadecimal numbers, this would be impossible because you need two bytes per hex char for the ascii character value range. So what is really in the file?

---

Edit

After reading your file, i did:

...

$file = 'file.SC2Replay';
$file_contents = file_get_contents($file);

for( $i=0x438; $i<0x443; $i++) {
   printf("%X ", ord($file_contents[$i]));
}
 for( $i=0x438; $i<0x443; $i++) {
   printf("%s ", $file_contents[$i]);
}

...

And it says:

72 48 79 64 72 61 6C 69 73 6B 

and

D r H y d r a l i s k 

You messed up the file position 😉

Regards

rbo