Laravel Shortcodes

Simple, elegant WordPress-like Shortcodes the Laravel way.

Requirements

The package has been developed and tested to work with the latest versions of PHP and Laravel as well as the following minimum requirements:

• Laravel 6
• PHP 7.2

Installation

Install the package via Composer.

composer require tehwave/laravel-shortcodes

Usage

Laravel Shortcodes work much like Wordpress' Shortcode API.

use tehwave\Shortcodes\Shortcode;

$compiledContent = Shortcode::compile('[uppercase]Laravel Shortcodes[/uppercase]');

// LARAVEL SHORTCODES

Creating Shortcodes

Run the following command to place a fresh Shortcode class in your new app/Shortcodes directory.

php artisan make:shortcode ItalicizeText

Output

Each Shortcode class contains a handle method, that you may use to output into the compiling content.

Within the handle method, you may access the attributes and body properties.

Note: All values in the attributes array are casted to string type when parsed.

<?php

namespace App\Shortcodes;

use tehwave\Shortcodes\Shortcode;

class ItalicizeText extends Shortcode
{
    /**
     * The code to run when the Shortcode is being compiled.
     *
     * You may return a string from here, that will then
     * be inserted into the content being compiled.
     *
     * @return string|null
     */
    public function handle(): ?string
    {
        if (isset($this->attributes['escape_html']) && $this->attributes['escape_html'] === 'true')) {
            return sprintf('<i>%s</i>', htmlspecialchars($this->body));
        }

        return sprintf('<i>%s</i>', $this->body);
    }
}

Naming

The shortcode's tag is derived from the class name to snake_case.

You may specify a custom tag using the tag property or by overwriting the getTag method.

Shortcode tags must be alpha-numeric characters and may include underscores.

<?php

namespace App\Shortcodes;

use tehwave\Shortcodes\Shortcode;

class ItalicizeText extends Shortcode
{
    /**
     * The tag to match in content.
     *
     * @var string
     */
    protected $tag = 'italics';
}

Compiling Shortcodes

Run a string through the compiler to parse all shortcodes.

use tehwave\Shortcodes\Shortcode;

$compiledContent = Shortcode::compile('[italics escape_html="true"]<b>Hello World</b>[/italics]');

// <i>&lt;b&gt;Hello World&lt;/b&gt;</i>

You may specify a list of instantiated Shortcode classes to limit what shortcodes are parsed.

use tehwave\Shortcodes\Shortcode;

$shortcodes = collect([
    new ItalicizeText,
]);

$compiledContent = Shortcode::compile('[uppercase]Hello World[/uppercase]', $shortcodes);

// [uppercase]Hello World[/uppercase]

Example

I developed Laravel Shortcodes for use with user provided content on gm48.net.

The content is parsed using a Markdown converter called Parsedown, and because users can't be trusted, the content has to be escaped.

Unfortunately, this escapes the attribute syntax with double quotes, but singular quotes can still be used as well as just omitting any quotes.

Note: Quotes are required for any attribute values that contain whitespace.

Let's take a look at the following content with some basic Row, Columnand Image shortcodes.

# Controls:

[row]
    [column]
        [image align=left src=http://i.imgur.com/6CNoFYx.png alt='Move player character']
    [/column]
    [column]
        [image align=center src=http://i.imgur.com/8nwaVo0.png alt=Jump]
    [/column]
    [column]
        [image align=right src=http://i.imgur.com/QsbkkuZ.png alt='Go down through platforms']
    [/column]
[/row]

When running the content through the following code:

$parsedDescription = (new Parsedown())
    ->setSafeMode(true)
    ->setUrlsLinked(false)
    ->text($this->description);

$compiledDescription = Shortcode::compile($parsedDescription);

We can expect to see the following output:

<h1>Controls:</h1>
<p></p>
<div class="container-fluid">
    <div class="row">
        <div class="col">
            <img src="http://i.imgur.com/6CNoFYx.png" class="mr-auto" alt="Move player character">
        </div>
        <div class="col">
            <img src="http://i.imgur.com/8nwaVo0.png" class="mx-auto" alt="Jump">
        </div>
        <div class="col">
            <img src="http://i.imgur.com/QsbkkuZ.png" class="ml-auto" alt="Go down through platforms">
        </div>
    </div>
</div>

You should still escape any user input within your shortcodes' handle.

Tests

Run the following command to test the package.

composer test

Security

For any security related issues, send a mail to [email protected] instead of using the issue tracker.

Changelog

See CHANGELOG for details on what has changed.

Contributions

See CONTRIBUTING for details on how to contribute.

Credits

• Peter Jørgensen
• All Contributors

Inspired by https://github.com/webwizo/laravel-shortcodes and https://github.com/spatie/laravel-blade-x

About

I work as a Web Developer in Denmark on Laravel and WordPress websites.

Follow me @tehwave on Twitter!

License

MIT License