README

A flexible PHP service to safely truncate HTML content without breaking tag structure. Provides multiple truncation strategies—by bytes or by characters—making it ideal for displaying safe previews, snippets or social meta content.

Flexible PHP service for safely shortening HTML content without breaking tag structure. It supports different truncation strategies: byte-wise or character-wise.

Features

• ✔️ Preserves valid HTML – no broken or unclosed tags
• ✔️ Supports truncating by bytes (for precise control, ex. for database or API)
• ✔️ Supports truncating by characters (multibyte safe)
• ✔️ Custom void tags
• ✔️ Simple API, PSR-4 autoload compatible
• ✔️ PHP 8.1+, mbstring required

Installation

Install via Composer:

composer require zjkiza/truncate-html

You need PHP 8.1+ and ext-mbstring enabled.

Basic Usage

Truncate HTML to a byte or character limit, safely:

use ZJKiza\TruncateHtml\TruncateHtml;
use ZJKiza\TruncateHtml\Enum\Strategy;

$html = '<div><p>Some rich <b>HTML</b> ...</p></div>';

$truncate = new TruncateHtml();

// --- Byte limit (precise control, for APIs/db):
$resultByte = $truncate->execute($html, Strategy::Bytes, 100);

// --- Character limit (supports multibyte chars!):
$resultChar = $truncate->execute($html, Strategy::Characters, 80);

After truncation, the string remains a valid HTML fragment.

Output Examples

For byte/char limits, HTML tags remain valid:

• Input:

  <div><p>Lorem <b>ipsum</b> ...</p></div>

• Truncated output (limit adjusted):

  <div><p>Lorem <b>ipsum</b> ...</p></div>

• Even if the cut is inside a tag, all tags are properly closed!

Truncation Strategies

• Strategy::Bytes: Cuts by bytes. Use when you need strict byte limits (DB, APIs, etc).
• Strategy::Characters: Cuts by characters using mbstring (multi-byte safe, e.g., for Unicode strings).

Default encoding is UTF-8, but can be overridden.

Usage in Frameworks / (example: Laravel, Symfony)

Register TruncateHtml as a service for injection.

Symfony (services.yaml)

services:
  ZJKiza\TruncateHtml\Contract\TruncateHtmlInterface:
      class: ZJKiza\TruncateHtml\TruncateHtml

Then simply inject as needed in your services/controllers.

Laravel (in AppServiceProvider)

use ZJKiza\TruncateHtml\Contract\TruncateHtmlInterface;
use ZJKiza\TruncateHtml\TruncateHtml;

public function register()
{
        $this->app->bind(TruncateHtmlInterface::class, function () {
            return TruncateHtml::create();
}

And type-hint TruncateHtmlInterface in your controllers/services.

Advanced: Custom void/self-closing tags

If you need to support additional self-closing/void tags, pass them as an array when constructing:

$truncate = new TruncateHtml(['customtag', ... ]);

Testing

To run tests:

composer install
vendor/bin/phpunit

License

MIT License (c) 2025 Zoran Jankovic

Author & Contact

• Zoran Jankovic

Contributions

Pull requests and suggestions are welcome! See tests/Functionality/TruncateHtmlTest.php for examples.

Changelog

See CHANGELOG.md