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José Antonio Fernández
José Antonio Fernández

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How use dompdf to generate a simple invoice pdf?

#php #html #css #dompdf

Invoice formato with PHPAt this moment to understand the basis in composer I have decided to create a simple pdf generator with Dompdf package.

This package is awesome and simple, to create a pdf invoice solution for download or create an automatic invoice delivery system.

The idea for monetization:
A create simple auth token system with API_KEY and token to receive JSON data for generating pdf in a simple PHP hosting.
Free hosting for testing this:

Free PHP Hosting

Ok, the code:

Step 1:

run this, for a run this you need to install composer
composer require dompdf/dompdf

The Dompdf documentation: :
Dompdf Documentation

Step 2:

Load vendor.autoload.php package

require 'vendor/autoload.php';
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Step 3:

Use the main class to create functionalities

// Cargar paquete para usar el modulo de Dompdf
use Dompdf\Dompdf;
use Dompdf\Options;
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Create an instance of the class Dompdf 

$dompdf = new Dompdf();
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Enable remote origins (for download image)

If not enable this, the image not render in the pdf file and break the template format preset

$options = new Options();
$options->set('isRemoteEnabled', true);
$dompdf = new Dompdf($options);
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Step 4:

Create an HTML template, with a text string

$htmlTemplate = '
<style>
//all styles for the custom template 
</style>

<html>
  <head>
    <htmlcontent>
    .......
</html>
';
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To pass dynamic vars using this format into the string

'.$contenidoDinamico.'
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For creating bucle with PHP array using the other var to generate a string with Concat operator (htmlinfo.= 'bucleGetInfo') or array method to push data

Step 5:

Load HTML with loadHtml method of the class instance previously named

$dompdf->loadHtml($content);
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Step 6:

Set a size for the page with the setPaper Method

$dompdf->setPaper('A4','landscape');
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Step 7:

Server compiled and fusion HTML with a PDF format to create a pdf image:

$dompdf->render();
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Step 8:

Write this information of saving in temporal server memory for sending a file to the client request

$dompdf->stream($fileName);
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Link al repo

Siguemente en las redes como @syntaxter

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