CODEWITHSUNDEEP
phphexdecimal
Talila
Talila

Reputation: 11

How to convert MAC address from hex to decimal in php?

How can I convert the MAC address from "0013D5011F46" to "0.19.213.1.31.70" in PHP ? thanks!

Upvotes: 1

Views: 3157

Answers (4)

paxdiablo
paxdiablo

Reputation: 882028

Here's one way to do it as a general purpose solution, being able to handle any length hex string:

<?php
    function doNext($s, $slen) {
        // String is even length here, exit if
        // no sections left.

        if ($slen == 0) {
            return;
        }

        // This is a section other than the first,
        // so prefix it with "." and output decimal.

        echo ".";
        echo hexdec(substr($s, 0, 2));

        // Do remainder of string.

        doNext(substr($s, 2), $slen - 2);
    }

    function doIt($s) {
        // Get length, exit if zero.

        $slen = strlen($s);
        if ($slen == 0) {
            return;
        }

        // Process forst section, one or two
        // characters depending on length.

        if (($slen % 2) != 0) {
            echo hexdec(substr($s, 0, 1));
            doNext(substr($s, 1), $slen - 1);
        } else {
            echo hexdec(substr($s, 0, 2));
            doNext(substr($s, 2), $slen - 2);
        }
    }

    // Here's the test case, feel free to expand.

    doIt("0013D5011F46");
?>

It basically treats the string as a grouping of two-hex-digit sections, handling the front one (which may only be one character long if the string length is odd) then stripping that off and processing the rest of the string recursively.

For each section other than the first, it outputs the . followed by the decimal value.

Upvotes: 2

Manh Nguyen
Manh Nguyen

Reputation: 940

Try this: 

$str = '0013D5011F46';
$mac = implode('.', array_map('hexdec', str_split($str, 2)));

OR

$str = '00:13:D5:01:1F:46';
$hex = explode(':', $str);
$result = implode(array_map('hexdec', $hex), '.');
echo $result;

Working DEMO

Upvotes: 2

simon
simon

Reputation: 2946

One-liner: 

$mac = implode('.', array_map("hexdec", str_split("0013D5011F46", 2)));

Explanation: 

$arr = str_split("0013D5011F46", 2);    // split the string into chunks of two characters
$arr = array_map("hexdec", $arr);       // convert every hex value to its decimal equivalent
$mac = implode('.', $arr);              // join array elements to string

For reference see str_split(), array_map(), hexdec() and implode()

Upvotes: 3

Uberfuzzy
Uberfuzzy

Reputation: 8372

$input = '0013D5011F46';

$output = implode(".", array_map( 'hexdec', explode( "\n", trim(chunk_split($input, 2)))));

0.19.213.1.31.70

Upvotes: 0

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