Code highlighting with Shiki in PHP

Shiki is a beautiful syntax highlighter powered by the same language engine that many code editors use. This package allows you to use Shiki from PHP.

\Spatie\ShikiPhp\Shiki::highlight(
    code: '<?php echo "Hello World"; ?>',
    language: 'php',
    theme: 'github-light',
);

This package also ships with the following extra languages, on top of the 100+ that Shiki supports out of the box:

• Antlers
• Blade

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Installation

You can install the package via composer:

composer require spatie/shiki-php

In your project, you should have the JavaScript package shiki installed. You can install it via npm...

npm install shiki

... or Yarn.

yarn add shiki

Make sure you have installed Node 10 or higher.

Usage

Here's an example where we are going to highlight some PHP code.

use Spatie\ShikiPhp\Shiki;

Shiki::highlight(
    code: '<?php echo "Hello World"; ?>',
    language: 'php',
    theme: 'github-light',
);

The output is this chunk of HTML which will render beautifully in the browser:

<pre class="shiki" style="background-color: #2e3440ff"><code><span class="line"><span style="color: #81A1C1"><?</span><span style="color: #D8DEE9FF">php </span><span style="color: #81A1C1">echo</span><span style="color: #D8DEE9FF"> </span><span style="color: #ECEFF4">"</span><span style="color: #A3BE8C">Hello World</span><span style="color: #ECEFF4">"</span><span style="color: #81A1C1">;</span><span style="color: #D8DEE9FF"> </span><span style="color: #81A1C1">?></span></span></code></pre>

Marking lines as highlighted, added, deleted or focus

Shiki-php allows you to mark certain lines as highlighted, added, deleted and focus. To do this, you can pass in the necessary lines to the highlight method:

use Spatie\ShikiPhp\Shiki;

// Highlighting lines 1 and 4,5,6
Shiki::highlight(
    code: $code,
    language: 'php',
    highlightLines: [1, '4-6'],
);

// Marking line 1 as added
Shiki::highlight(
    code: $code,
    language: 'php',
    addLines: [1],
);

// Marking line 1 as deleted
Shiki::highlight(
    code: $code,
    language: 'php',
    deleteLines: [1],
);

// Marking line 1 as focus
Shiki::highlight(
    code: $code,
    language: 'php',
    focusLines: [1],
);

You can then target these classes in your own CSS to color these lines how you want.

Determining available languages

To get an array with all languages that Shiki supports, call getAvailableLanguages

$shiki = new \Spatie\ShikiPhp\Shiki();

$shiki->getAvailableLanguages(); // returns an array
$shiki->languageIsAvailable('php'); // returns true
$shiki->languageIsAvailable('non-existing-language'); // returns false

Determining available themes

To get an array with all themes that Shiki supports, call getAvailableThemes

$shiki = new \Spatie\ShikiPhp\Shiki();

$shiki->getAvailableThemes(); // returns an array
$shiki->themeIsAvailable('github-light'); // returns true
$shiki->themeIsAvailable('non-existing-theme'); // returns false

Using a custom theme

Shiki supports any VSCode themes.

You can load a theme simply by passing an absolute path as the theme parameter.

use Spatie\ShikiPhp\Shiki;

Shiki::highlight(
    code: '<?php echo "Hello World"; ?>',
    language: 'php',
    theme: __DIR__ . '/your-path-to/themes/some-theme.json',
);

Testing

You can run all the tests with this command:

composer test

Changelog

Please see CHANGELOG for more information on what has changed recently.

Contributing

Please see CONTRIBUTING for details.

Security Vulnerabilities

Please review our security policy on how to report security vulnerabilities.

Credits

The Blade syntax highlighting source is taken from this repo. The Antlers syntax highlighting source is taken from this repo

Alternatives

If you don't want to install and handle Shiki yourself, take a look at Torchlight, which can highlight your code with minimal setup.

License

The MIT License (MIT). Please see License File for more information.