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Dump PHP String as HEX
<?php
/* Found at http://stackoverflow.com/questions/1057572/how-can-i-get-a-hex-dump-of-a-string-in-php */
function hex_dump($data, $newline="\n")
{
static $from = '';
static $to = '';
static $width = 16; # number of bytes per line
static $pad = '.'; # padding for non-visible characters
if ($from==='')
{
for ($i=0; $i<=0xFF; $i++)
{
$from .= chr($i);
$to .= ($i >= 0x20 && $i <= 0x7E) ? chr($i) : $pad;
}
}
$hex = str_split(bin2hex($data), $width*2);
$chars = str_split(strtr($data, $from, $to), $width);
$offset = 0;
foreach ($hex as $i => $line)
{
echo sprintf('%6X',$offset).' : '.implode(' ', str_split($line,2)) . ' [' . $chars[$i] . ']' . $newline;
$offset += $width;
}
}
/*
This produces a more traditional HEX dump, like this:
hex_dump($data);
=>
0 : 05 07 00 00 00 64 65 66 61 75 6c 74 40 00 00 00 [.....default@...]
10 : 31 42 38 43 39 44 30 34 46 34 33 36 31 33 38 33 [1B8C9D04F4361383]
20 : 46 34 36 32 32 46 33 39 32 46 44 38 43 33 42 30 [F4622F392FD8C3B0]
30 : 45 34 34 43 36 34 30 33 36 33 35 37 45 35 33 39 [E44C64036357E539]
40 : 43 43 38 44 35 31 34 42 44 36 39 39 46 30 31 34 [CC8D514BD699F014]
*/
/*
Note that non-visible characters are replaced with a period - you can change the number of bytes per line ($width)
and padding character ($pad) to suit your needs.
I included a $newline argument, so you can pass "<br/>" if you need to display the output in a browser.
*/
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