php-latex-renderer

wraps latex rendering and generating with twig templates. This library does

using twig for latex templating
inserting user data into latex templates
escaping user data, so no (new) latex commands can be introduced by userdata
renders latex file and returns pdf
has compact latex error logs

Installation

Installation via composer is suggested

composer require open-administration/php-latex-renderer

Usage

require './vendor/autoload.php';

$tex = new LatexRenderer('./templates/'); // <- dir where to search the templates
$tex->setTmpDir('./runtime/'); // <- where to build the latex files
$pdf = $tex->renderPdf('simple-report', [ // <- which template to use (file ending .tex.twig)
    'title' => 'My Custom Title', // <- variables to set 
    'author' => 'Me!',
]);
// output / save the pdf with
file_put_contents('main.pdf', $pdf);
// or echo with fitting header 
header("Content-type:application/pdf");
echo $pdf;

Twig options

The following symbols are used for twig templating

$options = [
    'tag_block' => ['(%', '%)'],
    'tag_comment' => ['(!', '!)'],
    'tag_variable' => ['((', '))'],
];

due to {{, {# and {% are too common in regular latex code. Be carefull with (( it is easy to use it in calculations as well. You can use

$tex->setTwigLexer($options)

for custom variants.

Meta Twig Context

There is a new introduced global variable _tex, which can be used everywhere and is defined like:

$this->twig->addGlobal('_tex', [
    'files' => $fileNames, // with name.pdf => files/name.pdf (local path in dir) 
    'dir' => $tmpDir . "tex/$templateName/$uid/",
    'template' => $twigTemplateName,
]);

Example: _tex.dir

Try the sample

php -f samples/simple-report.php

Contribute

Please run

composer cs-fix

before doing a pull request