Es ist Jahre später, aber falls andere auch danach suchen, habe ich mir erlaubt, den Code von mindplay.dk so zu ändern, dass er verschiedene Optionen akzeptiert und die Ausgabe des BSD-Befehls hexdump -C file simuliert:
function hex_dump($string, array $options = null) {
if (!is_scalar($string)) {
throw new InvalidArgumentException('$string argument must be a string');
}
if (!is_array($options)) {
$options = array();
}
$line_sep = isset($options['line_sep']) ? $options['line_sep'] : "\n";
$bytes_per_line = @$options['bytes_per_line'] ? $options['bytes_per_line'] : 16;
$pad_char = isset($options['pad_char']) ? $options['pad_char'] : '.';
$text_lines = str_split($string, $bytes_per_line);
$hex_lines = str_split(bin2hex($string), $bytes_per_line * 2);
$offset = 0;
$output = array();
$bytes_per_line_div_2 = (int)($bytes_per_line / 2);
foreach ($hex_lines as $i => $hex_line) {
$text_line = $text_lines[$i];
$output []=
sprintf('%08X',$offset) . ' ' .
str_pad(
strlen($text_line) > $bytes_per_line_div_2
?
implode(' ', str_split(substr($hex_line,0,$bytes_per_line),2)) . ' ' .
implode(' ', str_split(substr($hex_line,$bytes_per_line),2))
:
implode(' ', str_split($hex_line,2))
, $bytes_per_line * 3) .
' |' . preg_replace('/[^\x20-\x7E]/', $pad_char, $text_line) . '|';
$offset += $bytes_per_line;
}
$output []= sprintf('%08X', strlen($string));
return @$options['want_array'] ? $output : join($line_sep, $output) . $line_sep;
}
und dies ist ein Hex-Dump einer kleinen Datei:
00000000 89 50 4e 47 0d 0a 1a 0a 00 00 00 0d 49 48 44 52 |.PNG........IHDR|
00000010 00 00 00 10 00 00 00 10 02 03 00 00 00 62 9d 17 |.............b..|
00000020 f2 00 00 00 09 50 4c 54 45 04 04 04 99 99 cc d7 |.....PLTE.......|
00000030 d7 d7 2a 66 f6 6b 00 00 00 38 49 44 41 54 78 9c |..*f.k...8IDATx.|
00000040 63 08 05 02 06 24 22 0b 44 24 01 89 ac a4 69 4b |c....$".D$....iK|
00000050 19 1a 16 68 70 31 74 29 75 2c 42 22 1a 16 75 00 |...hp1t)u,B"..u.|
00000060 c5 22 33 96 32 74 86 46 4c 65 58 19 1a 35 15 61 |."3.2t.FLeX..5.a|
00000070 00 00 df be 19 a6 2e 62 80 87 00 00 00 00 49 45 |.......b......IE|
00000080 4e 44 ae 42 60 82 |ND.B`.|
00000086
und das ist der phpunit test:
<?php
if (isset($argv)) {
print "Running outside of phpunit. Consider using phpunit.\n";
class PHPUnit_Framework_TestCase {}
}
class Test extends PHPUnit_Framework_TestCase
{
const FUNCTION_NAME = 'hex_dump';
const DATA_BASE64 = '
iVBORw0KGgoAAAANSUhEUgAAABAAAAAQAgMAAABinRfyAAAACVBMVEUEBASZmczX19cqZvZrAAAA
OElEQVR4nGMIBQIGJCILRCQBiaykaUsZGhZocDF0KXUsQiIaFnUAxSIzljJ0hkZMZVgZGjUVYQAA
374Zpi5igIcAAAAASUVORK5CYII=';
private $expect = array(
'00000000 89 50 4e 47 0d 0a 1a 0a 00 00 00 0d 49 48 44 52 |.PNG........IHDR|',
'00000010 00 00 00 10 00 00 00 10 02 03 00 00 00 62 9d 17 |.............b..|',
'00000020 f2 00 00 00 09 50 4c 54 45 04 04 04 99 99 cc d7 |.....PLTE.......|',
'00000030 d7 d7 2a 66 f6 6b 00 00 00 38 49 44 41 54 78 9c |..*f.k...8IDATx.|',
'00000040 63 08 05 02 06 24 22 0b 44 24 01 89 ac a4 69 4b |c....$".D$....iK|',
'00000050 19 1a 16 68 70 31 74 29 75 2c 42 22 1a 16 75 00 |...hp1t)u,B"..u.|',
'00000060 c5 22 33 96 32 74 86 46 4c 65 58 19 1a 35 15 61 |."3.2t.FLeX..5.a|',
'00000070 00 00 df be 19 a6 2e 62 80 87 00 00 00 00 49 45 |.......b......IE|',
'00000080 4e 44 ae 42 60 82 |ND.B`.|',
'00000086',
);
public function testRequire() {
$file = __DIR__ . '/' . static::FUNCTION_NAME . '.php';
$this->assertFileExists($file);
include($file);
$this->assertTrue(function_exists(static::FUNCTION_NAME));
}
public function testString() {
$func = static::FUNCTION_NAME;
$data = base64_decode(static::DATA_BASE64);
if (!is_string($data)) {
throw new Exception('Unable to decode base64 encoded test data');
}
$dump = $func($data);
$this->assertTrue(is_string($dump));
$this->assertEquals($dump, join("\n", $this->expect) . "\n");
}
}
if (isset($argv)) {
$func = Test::FUNCTION_NAME;
require_once($func . '.php');
if (count($argv) < 2) {
print "Pass arguments file, from, length.\n";
}
else {
$file = $argv[1];
if (!file_exists($file)) {
die("File not found: $file\n");
}
$from = isset($argv[2]) && preg_match('/^\d{1,9}$/', $argv[2]) ? intval($argv[2]) : null;
$len = isset($argv[3]) && preg_match('/^\d{1,9}$/', $argv[3]) ? intval($argv[3]) : filesize($file);
$h = fopen($file, 'r');
if ($from) {
fseek($h, $from);
}
$data = fread($h, $len);
fclose($h);
$dump = hex_dump($data);
print $dump;
}
}