reading data from binary value in php?

Question

I get the below binary value in php by collecting the value from a DB.

0xF4010800000000960106000000002f03040000000063030700000000...

The problem is i don't know how to read it in sections.

For example, the first part F401 should be returned as a smallint (2 bytes) 500 and then just after that 08000000 should be returned as an int (4 bytes unsigned) and return as 8, how is this done in PHP?

EDIT:

I have tried hexdec(substr($value, 0, 4)) to try and get the value 500. bit on the first 4 bytes but this dosen't work, i don't know what else to try.

Wel what have you tried so far?

Naruto
– Naruto

2015-11-27 15:06:32 +00:00
Commented Nov 27, 2015 at 15:06 — Naruto
– Naruto, Commented Nov 27, 2015 at 15:06
$hex = bin2ex($binary); and $dec = hex2dec($dec);

Peter
– Peter

2015-11-27 15:11:02 +00:00
Commented Nov 27, 2015 at 15:11 — Peter
– Peter, Commented Nov 27, 2015 at 15:11

Community · Accepted Answer · 2023-11-17 20:42:18Z

1

https://www.php.net/manual/en/function.unpack.php

Note: Your data is packed in little-endian.

$bin = hex2bin('F4010800000000960106000000002f03040000000063030700000000');
var_dump(unpack('vone/itwo/h*remain', $bin));

Output:

array(3) {
  ["one"]=>
  int(500)
  ["two"]=>
  int(8)
  ["remain"]=>
  string(44) "0069106000000000f230400000000036307000000000"
}

edited Nov 17, 2023 at 20:42

CommunityBot

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answered Nov 27, 2015 at 19:02

Sammitch

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