Intelligent Mail Barcode

The Intelligent Mail Barcode replaced POSTNET and PLANET with one symbol carrying both routing and tracking: a 20-digit tracking code, then optionally a routing code of 5, 9 or 11 digits after a dash.

The result is always 65 four-state bars. Getting there takes an 11-bit cyclic redundancy check and a conversion through 13-bit codewords, which is where the bcmath extension earns its place: without it the library falls back to its own arbitrary precision arithmetic.

Type Token

Input

Examples

Tracking and routing

<?php

require_once __DIR__ . '/vendor/autoload.php';

$barcode = new \Com\Tecnick\Barcode\Barcode();
$bobj = $barcode->getBarcodeObj(
    type: 'IMB',
    code: '01234567094987654321-01234567891',
    width: -3,
    height: -30,
    color: 'black',
    padding: [0, 0, 0, 0],
)->setBackgroundColor('white');

echo $bobj->getInlineSvgCode();

Tracking only

$bobj = $barcode->getBarcodeObj(
    type: 'IMB',
    code: '01234567094987654321',
    width: -3,
    height: -30,
    color: 'black',
    padding: [0, 0, 0, 0],
)->setBackgroundColor('white');

Errors

These payloads raise \Com\Tecnick\Barcode\Exception:

See Also

• tc-lib-barcode : the library overview.
• Rendering Options : size, colour, padding.
• Output Formats : every renderer.
• Intelligent Mail Barcode, pre-processed : the same symbol from a prepared bar string.
• POSTNET : one of the two formats it replaced.
• API reference : the generated class documentation.