Comments on: PHP string to hex and hex to string functions

By: Krrish

Krrish — Mon, 12 Sep 2011 10:24:10 +0000

Never thought this way… escaping string is much easier.
Bookmarked it for future reference…

By: Shawn

Shawn — Fri, 22 Jul 2011 20:20:07 +0000

Hey, I am attempting to carve raw dumps of data for input with a PHP script. I am doing this for fun. Perhaps you could assist me? My problem is outlined here,

http://stackoverflow.com/questions/6740268/test-php-carve-for-jpg-files

I used your strhex functions and they work great!

Just need to figure out why my script is ignoring those zeros

Thanks so much! Send me an e-mail please! e.x.c.a.b.u.s.@.g.m.a.i.l DAWT CAWM

By: Komb

Komb — Thu, 07 Jul 2011 08:10:01 +0000

If you need to convert string to hex, just use built-in function:

bin2hex($string)

For reverse conversion native hex2bin() is in manual, but not yet implemented

I use sun0x0001 method – nice and short. Tested on urls.

By: yippy

yippy — Sat, 19 Mar 2011 13:41:42 +0000

base64 anyone?

By: arundhuti

arundhuti — Thu, 03 Mar 2011 09:20:53 +0000

Thanks for sharing.it really helps for the beginers.Can you let me how can i generate hex code for chinesse language and shown in front-end?

By: ThA-B

ThA-B — Thu, 09 Sep 2010 08:22:50 +0000

Hi, unfortunately (or fortunately) i must agree to Paul Gregg. Looping large strings (for example files to be handled in sql inserts) 5Mb file convertion on my server is at ~5 seconds. If you add check for 0×0 => 0×00 then it becomes ~ 8seconds when using unpack(‘H*’) takes 1.5seconds.

On the other hand using looping gives additional control over process so thanks for this too.

By: cvk

cvk — Fri, 11 Jun 2010 12:25:31 +0000

strToHex doesn’t work as expected. Try this instead:

function strToHex($string)
{
$hex=”;
for ($i=0; $i < strlen($string); $i++)
{
$hex .= sprintf("%02x",ord($string[$i]));
}
return $hex;
}

By: sun0x0001

sun0x0001 — Thu, 11 Feb 2010 16:57:45 +0000

Yo! Thanks for hexToStr() func!
Suppose alternative might be usefull for smb:

$s = preg_replace(‘#(\w)(\w)#e’, “chr(hexdec(‘$1$2′))”, $hex);

By: phpnewbie

phpnewbie — Tue, 12 Jan 2010 10:37:42 +0000

62E 635 645 20 35 30 30 2E 30 30 30 20 4B 57 44 20 645 646 20 62D 633 627 628 20 32 35 38 38 627 644 645 62A 628 642 64A 20 31 2C 34 32 31 2E 36 31 32 20 4B 57 44 20 627 644 645 62A 648 641 631 20 31 2C 34 32 31 2E 36 31 32 20 4B 57 44

this function does nt work with this..!!

By: joan

joan — Fri, 18 Dec 2009 07:39:42 +0000

hi,
how can i get the string value for this hex value: 0x0C?

the expected output is: \f

this returns empty:
chr(hexdec(’0x0C’));

any idea how to get more than one char value from hex?